PROJECT
AZITO PHASE IV PROJECT
COMBINED CYCLE POWER PLANT EXPANSION PROJECT
(CÔTE D’IVOIRE)
TITLE
GENERAL PAINTING SPECIFICATION
DOCUMENT NUMBER
AZ-20-VDJ-ME-SPE-IDM-0001
REVISION
DATE
1
24/10/2019
DOCUMENT ISSUED
FOR:
PURCHASE
EAA
AAP
DST
Issued by:
Revised by:
Approved by:
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
AZITO PHASE IV PROJECT
COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
(CÔTE D’IVOIRE)
Doc. No.
AZ-20-VDJ-ME-SPE-IDM-0001
GENERAL PAINTING
SPECIFICATION
Rev.: 1
Page
SUMMARY OF REVISIONS
Revision
Date
Changes Description
0
03/07/2019
First issue
1
24/10/2019
Comments from rev 0 included
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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AZITO PHASE IV PROJECT
COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
(CÔTE D’IVOIRE)
Doc. No.
AZ-20-VDJ-ME-SPE-IDM-0001
GENERAL PAINTING
SPECIFICATION
Rev.: 1
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1.
OBJECT ........................................................................................................................... 5
2.
PROJECT INFORMATION ............................................................................................... 6
3.
CODES AND STANDARDS ............................................................................................. 7
4.
SCOPE OF SUPPLY ........................................................................................................ 9
4.1.
SURFACES NOT TO BE PAINTED ........................................................................ 9
4.2.
SCOPE OF PAINTING IN WORKSHOP ............................................................... 10
4.2.1.
ON-SITE DELIVERY ...................................................................................... 11
4.2.2.
PIPES ............................................................................................................. 11
4.2.3.
VALVES .......................................................................................................... 12
4.2.4.
TANK SHELLS THAT WILL BE ASSEMBLED ON SITE .............................. 12
4.2.5.
INSTRUMENTS .............................................................................................. 12
4.2.6.
ELECTRICAL AND INSTRUMENTATION EQUIPMENT .............................. 12
4.2.7.
STRUCTURAL................................................................................................ 13
4.3.
SCOPE OF WORK FOR ON SITE PAINTING ...................................................... 13
4.4.
CONCRETE AND MASONRY STRUCTURES ..................................................... 14
4.4.1.
EXTERNAL MASONRY BUILDINGS: ........................................................... 14
4.4.2.
FOR INTERIOR PAINTING ON MASONRY ................................................. 15
4.4.3.
PAINTING ON WOODWORK ........................................................................ 15
5.
CLEANING AND PREPARATION OF SURFACES ........................................................17
5.1.
METALIC SURFACE .............................................................................................. 18
5.1.1.
CARBON STEEL ............................................................................................ 18
5.2.
RUST REMOVAL ................................................................................................... 19
5.3.
GENERAL REMARKS ........................................................................................... 20
5.4.
ALREADY PAINTED STEEL SURFACES............................................................. 21
5.4.1.
SURFACES WITH DEFECTS ........................................................................ 21
5.4.2.
WELD AREAS AND SCREW JOINTS........................................................... 21
5.4.3.
SURFACES FREE OF DEFECTS ................................................................. 22
5.4.4.
REPAIRS ........................................................................................................ 22
6.
WELD SEAM PREPARATION ........................................................................................23
6.1.
IN WORKSHOP ...................................................................................................... 23
6.2.
ON SITE ................................................................................................................. 23
7.
CORROSION PROTECTION...........................................................................................24
8.
PAINTING APPLICATION ...............................................................................................26
8.1.
GENERAL............................................................................................................... 26
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
AZITO PHASE IV PROJECT
COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
(CÔTE D’IVOIRE)
Doc. No.
AZ-20-VDJ-ME-SPE-IDM-0001
GENERAL PAINTING
SPECIFICATION
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8.2.
APPLICATION ........................................................................................................ 27
8.3.
APPLICATION OF THE PRIMARY COAT............................................................. 29
8.4.
APPLICATION OF THE INTERMEDIATE COATS ............................................... 29
8.5.
APPLICATION OF THE FINISHING COATS ........................................................ 30
8.6.
TOOLS AND EQUIPMENT .................................................................................... 30
8.7.
THICKNESS OF COATING ................................................................................... 31
8.8.
TOUCH-UPS .......................................................................................................... 31
8.9.
TRANSPORT, INTERMEDIATE STORAGE AND REPAIRS ............................... 31
8.10.
ENVIRONMENTAL AND SAFETY STANDARDS ................................................. 32
PAINT SYSTEMS AND SCHEMES .................................................................................33
9.1.
INSULATED SURFACES....................................................................................... 34
10. GALVANIZED COATING ................................................................................................35
11. PRODUCTS FROM APPROVED MANUFACTURERS ...................................................36
12. INSPECTION AND TESTING ..........................................................................................37
12.1.
GENERAL............................................................................................................... 37
12.2.
INSPECTION APPARATUS................................................................................... 37
12.3.
PHASES OF INSPECTION .................................................................................... 38
12.4. INSPECTION AND REJECTION METHODS ........................................................ 39
12.4.1.
PREPARATION AND CLEANING OF SURFACES ...................................... 39
12.4.2.
MEASUREMENT OF THICKNESSES........................................................... 39
12.4.3.
ADHESION TESTS ........................................................................................ 41
12.4.4.
DETECTION OF DISCONTINUITIES ............................................................ 41
12.4.5.
REJECTION ................................................................................................... 41
13. DOCUMENTATION .........................................................................................................42
14. WARRANTY ....................................................................................................................44
15. REFERENCE DOCUMENTATION ..................................................................................45
16. ANNEXES .......................................................................................................................46
16.1.
ANNEX I PAINTING SYSTEMS............................................................................. 46
16.2.
ANNEX II COLOR CODES .................................................................................... 46
16.3.
ANNEX III CIVIL AND STRUCTURAL ELEMENTS PAINTING SUMMARY ........ 46
16.4.
ANNEX IV– APPROVED PRODUCTS .................................................................. 46
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
AZITO PHASE IV PROJECT
COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
(CÔTE D’IVOIRE)
Doc. No.
AZ-20-VDJ-ME-SPE-IDM-0001
GENERAL PAINTING
SPECIFICATION
1.
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OBJECT
The object of the present Technical Specification is to define the technical requirements that have
to be fulfilled for the painting and protectives coatings for Azito IV Combined Cycle Power Plant
project, to be erected by COBRA in Ivory Coast.
This specification completes the minimum technical requirements established in this document
that is the guideline and basis for painting system and protective coating to be applied in
equipment, structures, pipe works and any other item in Azito IV power plant.
The painting works shall include:
-
Preparation of surfaces through cleaning mechanical or chemical methods.
-
Surface treating (if needed) through a metallization or any other similar process.
-
Supply and application of a primary layer (or impression layer) appropriate for the nature
of the surface support.
-
Supply and application of products (a certain number of layers) which constitute the
protection system.
The requirements specified herein apply to both the work carried out in the component
manufacturer’s shop and the work carried out on site.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
AZITO PHASE IV PROJECT
COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
(CÔTE D’IVOIRE)
Doc. No.
AZ-20-VDJ-ME-SPE-IDM-0001
GENERAL PAINTING
SPECIFICATION
2.
Rev.: 1
Page
6
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PROJECT INFORMATION
For information of the specific site data and project description, see document AZ-20-YTZ-EGSPE-IDM-0001 Project master data.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
AZITO PHASE IV PROJECT
COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
(CÔTE D’IVOIRE)
Doc. No.
AZ-20-VDJ-ME-SPE-IDM-0001
GENERAL PAINTING
SPECIFICATION
3.
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CODES AND STANDARDS
The scope of supply and design, materials, engineering, fabrication, manufacturing, inspection,
testing, certification, stamping, cleaning, painting and erection of the work to be supplied under
this specification shall be in accordance with internationally recognized standards. The
Subcontractor shall state the code or standard that has been, or is intended to be, applied for
each item of equipment, system or design process. Equivalent alternatives may be offered;
however, these shall be identified and based on mutual agreement.
Internationally recognized US / European regulation that apply. The following standards are
particularly applicable for the painting:
-
AFNOR Association Française de Normalisation
-
ANSI/AWWA American National Standards Institute / American Water Works
Association
•
-
ASME American Society of Mechanical Engineers
•
-
BS 729: Specification for hot dip galvanized coatings on iron and steel articles.
DIN – Deutsches Institut für Normung
•
•
-
E 119: Standard Test Methods for Fire Test of Buildings Construction and Materials.
123 Standard Specification for Zinc (Hot Dip Galvanized) Coatings on Iron and Steel
Products.
D3359: Standard Test Methods for Measuring Adhesion by Tape Test.
BSI – British Standards Institution
•
-
A13.1 Scheme for the identification of piping systems.
ASTM American Society of Testing and Materials
•
•
•
•
-
D10278: Standard for Painting Steel Water Storage Tanks.
DIN 55.928: Corrosion protection of steel structures.
DIN 5031 Identification colours
ISO – International Organization for Standardization
•
129441 to 8 (2007): Corrosion protection of steel structures by protective paint
systems.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
AZITO PHASE IV PROJECT
COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
(CÔTE D’IVOIRE)
Doc. No.
AZ-20-VDJ-ME-SPE-IDM-0001
GENERAL PAINTING
SPECIFICATION
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•
•
•
•
•
•
•
•
•
•
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1461: Hot dip galvanized coatings.
14713: Zinc coatings. Guidelines and recommendations for the protection against
corrosion of iron and steel in structures.
2063: Thermal spraying. Metallic and other inorganic coatings. Zinc, aluminum and its
alloys.
8501: Preparation of Steel substrates before application of paints and related products
visual assessment of surface cleanliness.
2808: Paint and Varnishes. Determination of film thickness.
85034 Preparation of steel substrates before application of paints and related products
surfaces roughness.
9000 Quality management.
2178: Nonmagnetic coatings on magnetic substrates Measurement of coating
thickness Magnetic method.
2409: Paints and varnishes Crosscut test.
4628/6: Paints and varnishes Evaluation of degradation of coatings Designation of
quantity and size of defects, and of intensity of uniform changes in appearance.
10684: Galvanization of bolts, nuts and washers
SIS – Svensk Standards
•
SIS 0559001967: Surface Preparations Standards for Painting Steel Surface.
-
RAL standard Colors
-
NFPA – National Fire Protection Association
•
251: Standard Methods of Tests of Fire Resistance of Building Construction and
Materials.
In addition to these codes and standards, it should be understood that the Supplier will comply
with the requirements of the applicable local codes and standards with effect from the date on
which the contract is signed. It shall be the Supplier’s responsibility to be, or to become,
knowledgeable of the requirements of the codes and standards.
Omission of any code, standard, law or applicable regulation does not relieve the SubContractor
of its responsibility to follow all applicable codes and standards.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
AZITO PHASE IV PROJECT
COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
(CÔTE D’IVOIRE)
Doc. No.
AZ-20-VDJ-ME-SPE-IDM-0001
GENERAL PAINTING
SPECIFICATION
4.
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SCOPE OF SUPPLY
Subcontractor shall be responsible for the procurement, inspection and testing of painting
materials and preparation of the surfaces and painting in accordance with the requirements of
this document.
If the paint shall be purchased by the Subcontractor, it shall be purchased from a vendor/vendors
existing in the approved vendor’s list (see annexes).
The Subcontractor may suggest alternative coating, if required, according to his experience and
practice. The coating suggested shall comply with the requisites and standards herein specified
and must be approved by the Client.
The supply shall include the tools required to prepare the surfaces, application of protective coats,
quality control, quality assurance, record keeping, documentation and reporting, and personnel
safety, as well as all temporary facilities, like scaffolding, tools, hoisting equipment, protection
masks, gloves etc., required for the painting work.
The supply shall include the paints to be applied, like thinners or any additives that may be
required, tools and instruments to prepare the surfaces, the application of protective coats, quality
control, quality assurance and personnel safety. Also, the scope of supply shall include any
materials, tools, works and procedures that could be required due to retouches and reparation of
damages in the painting of surfaces that could happen due to erection, transportation, lifting and
handle of painted materials.
Unless otherwise stated, surface preparation and application of the first layer on the equipment,
piping, piping support or metallic structures shall be made at the supplier workshop/factory.
This specification is not applicable for Underground piping. The Client must approve protective
coats or primers for this type of pipes.
The supplier must take into account that any deviation with respect to this specification shall be
subject to the approval of the Client. In addition, all painting procedures shall be verified by the
Client following a procedure that will be agreed with the Subcontractor.
4.1. SURFACES NOT TO BE PAINTED
This specification applies to the preparation, execution, monitoring and acceptance of coatings
on the system. The surfaces made of the following materials will not be painted:
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
AZITO PHASE IV PROJECT
COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
(CÔTE D’IVOIRE)
Doc. No.
AZ-20-VDJ-ME-SPE-IDM-0001
GENERAL PAINTING
SPECIFICATION
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concrete not exposed to corrosive environment
-
Aluminum.
-
Steel surfaces in contact with heatproof concrete.
-
Piping, tanks or elements in carbon steel which are insulated (Primary coating will be
applied).
-
Interiors of tanks, if so specified in the data sheet or in the tank specification.
-
Copper and brass.
-
Stainless Steel.
-
Galvanized surfaces, except firefighting pipes and handrail, kickflats and grating of tanks.
-
Junction box.
-
Equipment supplied with a finishing layer (applied according to supplier standard). For this
element that needs anti corrosion coating, will be indicated in the data sheet.
-
Surfaces embedded in concrete (for example embedded anchor bolts).
-
Contact surfaces for joints using high strength friction bolts.
-
Surfaces within 50 mm either side of joints to be welded.
-
Surfaces which should obviously not be painted (e.g., nameplates, valve stems, shafts,
mechanically finished surfaces).
-
Plastic coated surfaces,
-
Bearing surfaces,
-
Metal jacket surface of insulation,
-
Surfaces to be protected by protective coating
4.2. SCOPE OF PAINTING IN WORKSHOP
The scope of the painting work in manufacturer’s shop shall be as much as possible, and at least
shall compromise (not limitative) to the following:
-
Building structures.
-
Pumps and compressors.
-
Instrumentation.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
AZITO PHASE IV PROJECT
COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
(CÔTE D’IVOIRE)
Doc. No.
AZ-20-VDJ-ME-SPE-IDM-0001
GENERAL PAINTING
SPECIFICATION
Rev.: 1
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Control panels and consoles.
-
Motor control centers, power supply centers, medium voltage cabinets, etc.
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Ventilators.
-
Transformers.
-
Hoisting equipment.
-
Tank interiors (if so specified in the corresponding Data Sheet) delivered to the site
completely assembled.
-
Actuators.
-
Equipment packages delivered to the site completely assembled on a frame
-
Any other equipment or component that is so indicated in their corresponding technical
specification.
-
Electrical equipment.
4.2.1. ON-SITE DELIVERY
The following equipment items shall be delivered to the site correctly prepared and painted except
for the final coat if it is not applied in workshop, excluding the areas to be welded in accordance
with what is stipulated in this specification:
-
Exterior of tanks.
-
Beams from bridge crane or gantry crane girders.
-
Heaters without insulation.
-
Equipment base plates.
-
In general, any component that is going to be welded at the site and components that are
indicated in the corresponding technical specification.
4.2.2. PIPES
Pipes must be delivered with a primer coat as specified in Annex I, if not fully assembly and
painted at workshop. They are cleaned on site and provided with a complete coating as specified.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
AZITO PHASE IV PROJECT
COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
(CÔTE D’IVOIRE)
Doc. No.
AZ-20-VDJ-ME-SPE-IDM-0001
GENERAL PAINTING
SPECIFICATION
Rev.: 1
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4.2.3. VALVES
In case there are external and machined surfaces of carbon steel valves, which are not to be
painted, they shall be coated with a corrosion preventive film suitable for corrosion protection for
C5-M environment.
Threads shall be coated with heavy rust preventive grease or other acceptable corrosion
preventive film that can be easily removed with suitable solvents.
All other items subject to corrosion shall be suitably protected. Valves are delivered to the site
with a primer coat according to the manufacturer’s standard which shall be compatible with the
finish coats specified in Annex I. The coating is completed on site in accordance with Annex I and
colors codes specified in Annex II.
The manufacturer’s standard or the data sheets of the coating material manufacturer must be
included with the shipping documents.
Also, the carbon steel supports will be painted as per what indicate in this painting technical
specification, and the subcontractor must follow the painting coats indicated in the annex I.
4.2.4. TANK SHELLS THAT WILL BE ASSEMBLED ON SITE
These shells will be delivered with surface preparation and priming as specified in Annex I and
provided on site with a complete coating as specified.
4.2.5. INSTRUMENTS
Instruments shall be delivered with standard painting from manufacturer, complying with C5M
high durability category as per ISO 12944 C5M-H scheme (as per 2007 code).
4.2.6. ELECTRICAL AND INSTRUMENTATION EQUIPMENT
Electrical and instrumentation equipment shall be delivered with the manufacturer’s standard
coating. This standard coating must be able to withstand the climatic conditions during transport
and the load conditions at the installation site. Steel components for the instrumentation and the
electrical systems, such as cable trays, fixing parts and cable protection tubes (above-ground),
shall be delivered hot dip suitable as per ISO 1461: Hot dip galvanized coatings.
In all the cases stated above, The Subcontractor will send instructions for final painting and/or
retouches needed on site, after erection.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
AZITO PHASE IV PROJECT
COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
(CÔTE D’IVOIRE)
Doc. No.
AZ-20-VDJ-ME-SPE-IDM-0001
GENERAL PAINTING
SPECIFICATION
Rev.: 1
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Damage to the anticorrosion coating during assembly (interfaces, welded joints in exceptional
cases) must be repaired by cold galvanizing and, if necessary, additional surface coating.
For different areas in the plant classified as anti-acid surfaces, they should be protected as follow:
-
Shelling, brushing, dust removal in surfaces that should be treated
-
A layer of primer with resin or a similar product
-
Coating with ironed and sanded zinc white
-
Three anti-acid layers in Sikaguard or a similar product
4.2.7. STRUCTURAL
All steel elements involved in this project like base plates, columns, beams or any other element
that requires a coating protection must be painted in order to prevent corrosion or damage during
the time of use.
The steel elements must be delivered with complete painting system as specified in Annex I and
Annex II. After on-site assembly, any damages must be repaired in order to complete the
protection coating where necessary.
4.3. SCOPE OF WORK FOR ON SITE PAINTING
The scope of the work on site will include, but will not be limited to, the following:
-
The preparation of surfaces and the application of the complete painting systems of all the
components (equipment, materials, structures, etc.) which are supplied without painting.
-
The preparation of surfaces and the application of intermediate or finishing coats and/or
retouches until the completion of the painting systems defined to all the components
required
-
The preparation and painting of concrete subject to chemicals environments requiring
specific chemical resistance characteristics, such as:
•
•
•
•
•
•
Chemical skids (tanks and fittings) area and related spills surfaces
Basin areas for chemicals (including battery rooms)
Basin areas for lubrication/hydraulic oils
Pits containing drains from water-steam cycle (if applicable)
Pits containing drains from gas turbine compressor washing (if applicable)
Pits containing drains from condensate gas (if applicable).
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
AZITO PHASE IV PROJECT
COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
(CÔTE D’IVOIRE)
Doc. No.
AZ-20-VDJ-ME-SPE-IDM-0001
GENERAL PAINTING
SPECIFICATION
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The preparation of surfaces and the application of coats and/or retouches until the
completion of the painting systems defined (as required in Annex I of this document) of
internal / external walls and ceilings finishes.
-
Preparation for site painting for final touch up (materials, tool), including procedures
-
Preparation for site painting for damage reparation (materials, tool), including procedures
4.4. CONCRETE AND MASONRY STRUCTURES
Only concrete subject to corrosive environment shall be painted. Contractor will indicate which
buildings are considered to be under a corrosive environment.
New concrete and cement surfaces shall be left to cure for at least thirty (30) days before they
are painted.
Before painting, it shall be verified that there is no filtration and moisture that prevent good
adherence of the paint. If there is any filtration or moisture, the paint manufacturer shall
recommend a compatible sealant coat that can be applied until the surface is saturated before
painting.
Before applying the paint, the Subcontractor shall ensure that it is compatible with the stripping
products used.
Before cleaning the surfaces, all burrs, worn or protruding edges, etc., shall be made good with
the use of mechanical polishers, abrasive discs, etc.
Before applying coatings to vertical panels, walls, pillars, etc., all defects such as pitting or
blistering shall be repaired to obtain an even coat free of pores and cracks. It is essential that a
compatible filler or mortar be applied which covers the surface but does not sink so that, once it
is dry, it can work with a polisher.
Gentle shot blasting should be used to clean concrete. All dust should subsequently be removed
by suction or air blasting.
Concrete surfaces to be protected or painted will be indicated in the civil drawings with its
corresponding procedure and paint specification.
For the masonry, must be take into account the following:
4.4.1. EXTERNAL MASONRY BUILDINGS:
-
Smoothing, brushing-off, removal of dust from the application surfaces.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
AZITO PHASE IV PROJECT
COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
(CÔTE D’IVOIRE)
Doc. No.
AZ-20-VDJ-ME-SPE-IDM-0001
GENERAL PAINTING
SPECIFICATION
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A priming coat of primorex or similar
-
Two coats of granulite finish or similar.
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4.4.2. FOR INTERIOR PAINTING ON MASONRY
The interior treatment of the surfaces of the different buildings will be in vinyl paint on cement
mortar, plaster or on concrete facing (color and degree of finish to be chosen by COBRA)
and includes:
-
Smoothing, brushing-off, removal of dust from the surfaces to be treated
-
A rex-type priming coat or equivalent
-
Vinyl coating in three cross coats
-
Three layers of glycerophtalic finish, if required
-
Anti-acid paint:
Anti-acid paint for the battery room and the demineralization area and any others requiring an
anti-acid treatment on cement mortar, including:
-
Smoothing, brushing-off, removal of dust from the surfaces to be treated
-
A rex-type priming coat or similar
-
Coating in zinc white, reworked and sanded
-
Three layers of anti-aci.
4.4.3. PAINTING ON WOODWORK
Painting on woodwork: shaft doors, frames, opening or fixed, glazed or solid, for all works (color
and degree of finish subject to approval by COBRA), including:
-
Painted aspect:
•
•
•
•
•
-
Brushing-off and removal of dust from the surfaces to be treated
Priming using formoprime or similar
Skim-coating with rexenduit or similar
Light dry sanding
Three layers of glycerophtalic paint.
Varnished aspect:
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
AZITO PHASE IV PROJECT
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EXPANSION PROJECT
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Doc. No.
AZ-20-VDJ-ME-SPE-IDM-0001
GENERAL PAINTING
SPECIFICATION
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•
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Brushing-off and removal of dust from the surfaces to be treated
Priming with a coat of universal clear varnish
Light dry sanding
Two coats of universal clear varnish
A coat of synthetic varnish.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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CLEANING AND PREPARATION OF SURFACES
All surfaces preparation and coating work shall be in strict accordance with international safety
and health requirements. Also surfaces shall be prepared in accordance with the most recent
instructions of the manufacturer to be used and with this document.
The following methods used for cleaning surfaces beforehand can be used:
-
Mechanical methods (brushing, machining, scraping, sanding, grit blasting, etc.).
-
Chemical methods (degreasing, scouring, etc.)
The objective of the chemical or mechanical processes to be used in order to prepare the surfaces
to be painted is the following:
-
Ensure the complete removal of superficial impurities which could cause, in the long term,
degradation of the protection system and corrosion of the protected material.
-
Prepare the surface to be the support for the surface treatment foreseen (if present), or
the protective coating to be applied.
-
Allow the initial layer to adhere to the surface-support in every circumstance.
The degree of treatment materials required in this specification should comply with degree SA 2
½ according to ISO 8501 standard (Grade 2 according to BS 4232 and SP 10 according to SSPC
VIS1) for any surface to be treated.
The treatment of a metallic surface by sanding or by any equivalent methods is a surface
preparation by which carbon deposits, rust, mill scales and all other foreign materials attached to
this surface are removed.
Prior to priming, all surfaces shall be visually inspected to ensure that the proper surface
conditions necessary for painting exist. This shall include:
-
Confirmation that environmental requirements for blast cleaning are met:
•
•
-
The blasted surface shall be maintained free of dust, frost or moisture until completion
of the painting work.
No blast cleaning shall be performed outdoors without protecting from rain and
precipitation.
Verification that surface preparation and surface profile are adequate
•
All mechanical defects in the steel must be eliminated: welding burrs, sharp edges,
etc.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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Doc. No.
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GENERAL PAINTING
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The planed grain, interlocked grain, fluff in wood shall be removed with sandpaper and
all cracks, manholes open duct and other imperfection shall be made good with
spackling made for the particular purpose at hand.
Cracks and holes on the concrete surface shall be flat tended with cement paste,
mortar, or cement filler.
-
Verification that cleaned surfaces have been kept free of contamination
-
Documentation that the dew point conditions have been met
-
Verification that the storage, mixing, thinning and application of primers are in accordance
with manufacturer’s instructions.
-
Verification that surfaces not to be coated are masked off otherwise protected prior to
painting of adjacent surfaces.
Precautions shall be taken to ensure that the internal surfaces of equipment, machined surfaces,
etc. are not contaminated with cleaning products, sand, etc.
It is assessed in comparison with samples defined by the AFNOR NF E 05-051 standard and
should correspond to booklet N12 of this standard.
The surface preparation of the piping and equipment shall comply with the recommendation of
paint manufacturer. Weld slag and residue, dust or another residue shall be removed completely
before painting.
5.1. METALIC SURFACE
The methods used for the preparation of the surfaces in steel shall be compliant with the most
recent revisions of the specifications relative to the preparation of the surfaces from the “Steel
Structure Painting Council”, the Svensk Standard SIS 055900 and/or ISO 8501.
The degree of sanding treatment required in this chapter should comply with degree SA 2 ½
according to ISO 8501 standard for any surface to be treated.
Before applying any protection layer or primer to the surfaces in steel shall be degreasing,
5.1.1. CARBON STEEL
For this type of material, when solvents are used, the applicable safety standards shall be
observed, including the use of goggles, ventilation equipment, gloves, etc.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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Special caution shall be taken not to contaminate stainless steel surfaces close to where the work
is being carried out, especially if halogenated cleaning agents are being used.
Residue from chemical products shall be removed by washing with warm water or jet blasting
(<700 bar). Neutral moisturizing agents may be used if necessary. Clean wet surfaces shall be
between 6 and 8 pH.
Only where blast cleaning is impractical, manual or mechanical brushing shall be used, with the
approval of the Purchaser, for repairing and patching up small damaged areas.
The removal of rust using chemical cleaning shall be subject to the explicit approval of the
Purchaser.
5.2. RUST REMOVAL
Paint shall be applied to surfaces at maximum 8 (eight) hours after rust removal. In no case shall
clean surfaces be left overnight without being painted. In the case that rust reappears, the surface
shall be blasted again regardless of time elapsed since preparation.
If paint not be applied to surface at maximum 8 (eight) hours after rust removal; All cleaned
surfaces shall be primed before re-rusting occurs the same day as their cleaning. If the first under
coat cannot be applied prior to rust bloom on the same day, the surface preparation work for the
surface shall be repeated, before the paint application is done.
Rust shall be removed by abrasive blasting. After preparation, the appearance of the surface must
coincide with the corresponding figure in ISO 8501 standards. The supplier shall confirm and
submit the certification.
The abrasive to be used shall be clean, dry and free of contaminants and soluble salts, and shall
be in accordance to ISO 8501.
The roughness of the surface after blasting will be as recommended by the manufacturer of the
paint.
Blasting shall not cause surface damage or distortion.
Manual or mechanical brushing shall be used only where blast cleaning is not practical for
repairing and patching of small damaged areas. The final appearance shall be the equivalent to
St 3 grade in accordance to the ISO 8501.
Temperature of steel surface during dry blast cleaning and until prime coat is applied shall be
more than 3°C above dew point of surrounding air.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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Removal of rust using chemicals will be subject to the approval of SubContractor.
5.3. GENERAL REMARKS
The cleaning with hand tools or mechanical tools shall be used if the abrasive sanding is
impracticable (limited space, high elevation, etc.).
Abrasive sanding shall not be carried out during paint application if dust can contaminate the
surfaces.
Surfaces coated with metal and treated with phosphate shall not be subjected to abrasive sanding
but cleaned with water and solvent in order to eliminate all the superficial contamination.
Equipment and instruments that need a protection during abrasive sanding shall be conveniently
covered in order to prevent any damage.
Sand, scories, particulates and steel grains of high quality shall be used as abrasive material for
the abrasive sanding.
If the risk of explosion does not allow the dry sanding, NACE standard RP01.72 shall be
employed. In particular, it states: “surface preparation of steel or other hard materials shall be
done by water blasting prior to coating or recoating”. This process needs water inhibition and
therefore the paint cannot be applied before the treated surface is completely dry and adequate
to paint.
Every day the surface preparation shall be interrupted early enough so as to allow the application
of the primary coat before the end of the working day.
A band of 300mm of surface (treated but not painted) shall be reserved between the painted
surfaces and the surfaces not sandblasted in order to avoid any deterioration of the paint coating
until the sandblasting is re-started. When the sandblasting is started again, the 300mm band shall
be slightly sandblasted to remove any trace of rust or impurities.
Prior to priming, all surfaces shall be visually inspected to ensure that the proper surface
conditions necessary for painting exist. This shall include:
-
Confirmation that environmental requirements for blast cleaning are met
-
Verification that surface preparation and surface profile are adequate
-
Verification that cleaned surfaces have been kept free of contamination
-
Documentation that the dew point conditions have been met
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
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Doc. No.
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GENERAL PAINTING
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-
Verification that the storage, mixing, thinning and application of primers are in accordance
with manufacturer’s instructions
-
Verification that surfaces not to be coated are masked off or otherwise protected prior to
painting of adjacent surfaces.
Precautions shall be taken to ensure that the inside surfaces of equipment, machined surfaces,
etc., are not contaminated with cleaning products, sand, etc.
Metal structures or equipment to be protected shall be designed in accordance with ISO 129443, “Corrosion protection of steel structures by protective paint systems. Design Considerations”.
All mechanical damage of steel should be eliminated before cleaning: weld splatter, sharp edges,
etc.
5.4. ALREADY PAINTED STEEL SURFACES
5.4.1. SURFACES WITH DEFECTS
If the defects to be repaired cover small zones (<25%), they shall be brushed with a mechanical
brush down to a firmly adhered coat of paint or, if there is no such coat, down to the bare metal.
The dust resulting from brushing shall subsequently be cleaned, followed by the painting system
specified.
If the defects to be repaired cover more than 25% of the painted surface or are spread throughout
the surface (regardless of the %) all the layers of defective paint shall be completely removed and
the surface shall be prepared and completely painted in accordance with this specification.
Make reference to ISO 4628/6 for the evaluation of the defects and designation of intensity,
quantity and dimension.
5.4.2. WELD AREAS AND SCREW JOINTS
After welding, the area shall be cleaned of grease and brushed before painting. Care shall be
taken to ensure the complete removal of weld splatter, test fluid residues, burnt paint, etc. The
surface affected by the weld shall be left prepared to be completely painted like the rest of the
component.
Weld joints often have painting defects or deterioration, which causes corrosion and local
destruction of the paint layer. This is caused by the active products used during welding or the
weld splatter not eliminated. Weld splatter shall be eliminated through grinding and the active
products through abrasive jet (if possible) or by carefully cleaning with a brush and water.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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GENERAL PAINTING
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5.4.3. SURFACES FREE OF DEFECTS
If these surfaces have to be painted, the painted surface shall be cleaned with cloths or brushes
using solvents suited to the already applied paint. If the type of paint is not known, tests shall be
carried out on small surface areas with different solvents or detergents until it can be established
which of them leaves the surface clean without affecting the coating. Very smooth surfaces will
have to be lightly shot blasted or brushed to obtain adequate roughness for the paint to adhere.
Once the surface is clean and dry, the specified coats of paint shall be applied.
5.4.4. REPAIRS
When the construction works and the assembly of the painted product have caused degradation
of any of the paint layers, adequate repair of them shall be done:
-
The re-painting shall be done on a surface around the affected area that shall be three (3)
times the damaged surface.
-
If the degraded area exceeds 25% of the total surface, the totality of the surface (100%)
shall be repaired.
The degraded surfaces shall be cleaned:
-
Through scratching or brushing (metallic brush)
-
Through sandblasting.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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GENERAL PAINTING
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WELD SEAM PREPARATION
6.1. IN WORKSHOP
Cover the weld seam area on both sides of the weld seam edges with adhesive tape over a width
of approx. 5 cm
Apply a primer coat in the required layer thickness up to the taped edges (leave the weld seam
area covered)
Apply a first finish coat only up to approx. 20cm on both sides of the weld seam edges; all
subsequent coats must be applied approx. 5 cm from the edge of the previous coat.
6.2. ON SITE
Completely remove the tape prior to welding.
Remove weld spatter and scale after welding.
In the weld seam area, including the combustion zones on both sides, bring the surface condition
to the agreed standard degree of purity and apply the coating in accordance with the system
structure.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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COMBINED CYCLE POWER PLANT
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Doc. No.
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GENERAL PAINTING
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7.
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CORROSION PROTECTION
The entire Project shall be designed to minimize corrosion. The facility shall be painted or treated
with protective coatings to protect it from corrosion and to provide a neat and pleasing
appearance. The coating system shall be suitable for the environment.
Where corrosion resistant materials (e.g. concrete, stainless steel, plastic and aluminium) are
used, no decorative finish need be applied. All outdoor steelwork shall be galvanized or painted,
and all indoor primary steel work shall be painted.
For AZITO IV power plant, the following indications must be taken into account for all equipment
in the plant. The paint application used should be defined according to the conditions of use and
the environment in which the equipment is installed. The certification class of a system depends
on its ability to withstand the environment in which it is exposed.
The class of paint system to protect equipment is at least of the type:
-
C3-High durability according to the ISO 12944-2 (2007) standard for non-submerged, nonburied interior metal structures (In Door) of the plant.
-
C5M-High durability according to the ISO 12944-2 (2007) standard for non-submerged,
non-buried exterior metal structures (Out Door) of the plant,
Unlagged piping shall be shop primed and welded joints shall be field primed. HVAC ductwork
shall be unpainted (fan casings and damper). Equipment and enclosures shall be finish painted.
All items of the plan including, equipment, supporting metalwork, structures, tanks, pipework,
lifting tackle and other metallic items, including bolts and fasteners shall be protected from
corrosion and the effects of the environment.
Building exterior finish coatings shall be applied to all roof and wall panels and decks, wall louvers,
flashings, gutters, trim, and other exposed galvanized surfaces.
All equipment and structures shall be surface-protected, painted and/or galvanized to protect the
steel against corrosion. All surface preparation, galvanizing and painting shall be carried out
strictly in accordance with the paint system manufacturer’s recommendations and requirements.
All paint systems, paint specifications and other material specifications shall be submitted to the
Employer for acceptance before commencement of field work. The different paints used for
priming, undercoat and finish for the work and site shall all be mutually compatible.
The coating system and finish used for both internal and external surfaces shall be suitable for
the particular conditions during shipping, storing, erection, commissioning and operation. Where
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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GENERAL PAINTING
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the surfaces to be coated are subject to heat or attack by chemicals, oil, acid, fumes, or other
corrosive matter special paints having the appropriate resistant qualities shall be used.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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GENERAL PAINTING
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PAINTING APPLICATION
8.1. GENERAL
The type of paint shall respond to two principles which mitigate the effect of corrosion, on one
side, it has to isolate the support from the atmosphere through a barrier which is resistant to it.
On the other side, it shall have a potential for chemical reactions which are contrary to those that
determine the corrosion.
These two criteria drive us to select multi-layer systems, which are the most performing systems
and allow us to fulfil the requirements of adherence to the supports, protection and aesthetic
aspects.
The painting system shall be composed of:
-
A primer specifically compatible with the metal to be painted and its surface preparation.
-
A undercoat for weatherproofing and protection.
-
A top coat to give the object being painted its final appearance and durability. This system
must be composed of 3 layers (minimum).
Every paint and protective coatings shall be new, first-quality and adequate for the specified
application. Their quality shall be high enough to withstand the local conditions and they shall be
directly supplied by the manufacturer in their original packaging.
Fireproof paints shall be first-quality, able to ensure protection against corrosion and to resist the
specified temperatures without showing any sign of deterioration (such as cementation, softening,
flaking, cracking, etc.)
The Supplier shall indicate the recommended paints which, in agreement with the present
specification, will be submitted to the Client for approval.
Coating products shall belong to a brand and type that are accepted by the Client considering the
nature of the works and they shall come exclusively from the factories of the manufacturer
particularly indicated.
The products shall be homogeneous and have an adequate consistence for the application
method foreseen; for each paint category, the manufacturer shall be asked to provide a reference
sample to the Client.
The composition and quality of the products shall not vary from one package to another and they
shall always be in agreement with the composition and quality conserved in the reference sample.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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The Client shall be able to reject the containers if the product is not in agreement with the
requirements.
The color of each layer shall be clearly distinguished from the others and shall normally be a dark
tone vs. a light tone.
8.2. APPLICATION
All paints shall be applied evenly to completely cover the surface. The paint manufactures
instructions for paint thickness, overall drying times along with recommended drying times
between applications, method of application, and other parameters, must be rigidly adhered to.
Successive paint coats shall be of differing colors. It is considered essential that the number of
paint manufacturers involved is kept to a minimum. Detailed schedules of painting protection shall
be required at the design stage for all plant components. The schedules shall include all relevant
information on the coatings proposed, including manufacturers data sheets, the stage of
work/completion at which the protective coats shall be applied, and the proposed inspection and
repair procedures. No paints or protective materials other than those schedules and approved by
the Employer shall be used. In all bases, the approved paints and protective materials, including
decorative and identification paints, shall be applied strictly in accordance with the approved
manufacturers instructions. All painting and protection shall be carried out by skilled painters with
appropriate supervision.
For application of the paint systems reference shall be made to the data sheets of the coating
material manufacturers.
As a proof before painting shall be present a test certificate of the coating system.
Sealing surfaces must be suitably covered prior to coating.
With regard to the extent of cleaning, grade of rust removal and roughness, before applying any
coats, the surface shall be perfectly prepared in accordance with the requirements of the coating
to be applied and with this specification.
Coats which are applied to the same surface (primer, intermediate and topcoat) shall be mutually
compatible. This requirement also applies to any retouches and priming carried out in the
workshop. Before applying a coat of paint, the previous coat must be free of foreign materials and
adequately cured.
The coating structure must be clearly indicated by using distinct colors for the individual coats.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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Surfaces requiring two or more coats of the same paint shall be painted in opposite directions and
each coat shall be of a different tone to ensure that the surface is completely covered by each
coat. The primer shall be of a different color to the steel to which it is being applied.
Intervals between coats shall comply with manufacture’s recommendations and should generally
be kept to the absolute minimum in order to prevent contamination between coats. Where
contaminations occur between coats, this shall be completely removed, generally by washing with
a detergent solution and rinsing with clean fresh water.
An additional coat will be applied to outer corners and edges before painting the component
completely.
Each consecutive pass of paint applied to pipes shall overlap the previous pass by 50% to prevent
areas of less thickness.
For applying paint, the environmental temperature and humidity conditions recommended by the
paint manufacturer shall be taken into account. In general, paint must not be applied in any of the
following cases:
-
Ambient temperatures shall be less than +5°C or greater than +40°C (never expected)
-
If it is expected that the temperature will fall below 0°C before the paint has dried (never
expected)
-
When the temperature of the metal is <1°C below the dew point of the air (never expected)
-
When the temperature of the metal is <8°C (never expected)
-
Relative humidity is greater than 75%
-
Rain, ice, snow, fog or sandstorm.
-
Wind above 20 Km/h
-
Outside daylight hours on exterior locations
-
When there are dust and gases in the environment
No paint shall be forcibly dried under conditions that may affect the substratum or the coats of
paint and/or their adherence to each other. (e.g. rain, condensation, etc.)
Any element that is not concerned by the painting procedure will be adequately protected during
the paint application (e.g. Identification plate, couplings, bearings, etc.).
The border of the painted areas shall be bevel finished.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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The paint used for repairing shall be identical to the initial one.
Surfaces whose preparation and first layer have been applied in workshop, shall be treated
according to SSPC SPL before receiving their intermediate and finishing layers.
The use of “primer workshop painting” is capable of:
-
Protecting materials against corrosion.
-
Allowing a correct execution and a convenient quality of the further works of shaping,
assembly, oxycutting and welding, and specially the painting works.
-
Limits specified into the standard AFNOR NºJ17 000 (last edition) or international
equivalent standards.
As regards the equipment, piping, metal tanks surfaces or other items that are to be transported
on boats, the present specification recommends, if possible, that the primary coat is applied
before the boarding. The completion of the painting shall be performed on site according to the
indicated procedures in this specification.
8.3. APPLICATION OF THE PRIMARY COAT
The primary coat (or the impression layer on the items with absorbing surface) shall be applied:
-
At workshop: The paint mode will always be through paint gun / spray painting, both airless
preferred; however, when it is not feasible to use paint gun or there are areas cannot be
properly covered by spray painting, brushes or rollers will be used by constructor.
-
On site: preferably paint gun / spray painting will be used, and when this technique cannot
be used, brushes or rollers will be used.
Also, brushes or rollers only permitted for the retouches or when areas cannot be properly
covered by spray painting.
In places where the corrosion effects are to be specially reduced (welds, ribs, rivets, etc.), the
thickness of the Primary Coat shall be doubled.
In cases where the primary coat (or impression) is necessary, the products used for each one of
them shall have the same composition but different colors.
8.4. APPLICATION OF THE INTERMEDIATE COATS
Intermediate coats are applied in order to obtain a total thickness that constitutes the efficacy of
the protection thickness. The application mode shall be identical to primary coat application.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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The intermediate coats shall provide the best possible adherence to the finishing coats.
The subcontractor shall apply the final coat in the same way in which it applies the primary and
intermediate coats.
8.5. APPLICATION OF THE FINISHING COATS
Finishing coats shall satisfy:
-
The particular atmosphere conditions
-
The security prescriptions (markings, signaling)
-
Defense against animal and vegetal parasites (for soaked surfaces)
Finishing coats are based on conventional colors indicated in Annex.
The fixation of the colors shall be particularly chosen in order to satisfy specially the visibility
conditions.
The subcontractor shall apply the final coat in the same way in which it applies the primary and
intermediate coats.
All the ingredients contained in the different paint containers shall be completely mixed before the
use and shacked frequently during application in order to maintain the paint in suspension.
All the paints supplied separately shall be mixed in order to obtain a uniform mixing in agreement
with the instructions of the paint manufacturer.
8.6. TOOLS AND EQUIPMENT
The use of brushes, rollers and pulverization machines is admitted for the application of painting
coatings.
Mechanical mixers shall be utilized for all the paint mixing operations. Manual mixing shall be
authorizes for small quantities (lower than 4 liters).
The supply of compressed air for the abrasive scraping and pulverization of paint shall have the
adequate pressure and capacity. It shall be free from oil and water.
Separating filters shall be provided; they shall be regularly cleaned and emptied.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
AZITO PHASE IV PROJECT
COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
(CÔTE D’IVOIRE)
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8.7. THICKNESS OF COATING
The required layer thicknesses are defined as nominal layer thicknesses in accordance with ISO
12944-5 (2007).
8.8. TOUCH-UPS
Areas with pin holes or dry film thickness smaller than the prescribed one, must be touched up or
covered with a further pass.
Before touching-up or repainting, surfaces must be cleaned from oil, grease, dust, burnt or
removed enamel and any extraneous material.
Areas with cracks, sagging, extraneous material, bumps or film detachment must be treated again
with the entire painting cycle, including surface preparation.
The surfaces near the zone to repaint must be shielded and protected against sprays that can
occur during surface preparation and paint application on the surface to be repainted.
The surfaces touched-in must feature an overlapping area along the perimeter not longer than 50
mm. The overlapping area must be prepared increasing its roughness through mechanical
means.
8.9. TRANSPORT, INTERMEDIATE STORAGE AND REPAIRS
All defects on painted surfaces, such as inadequate adhesion, mechanical damage, inclusions,
breaks, etc, shall be repaired so that the final coat satisfies the conditions specified. All defective
areas shall be completely cleaned, including adjacent areas (see section 6.4.4). The state of the
surface shall be inspected before applying the painting system.
The coatings must be protected by appropriate securing devices to prevent damage during
transport. Wood or other suitable materials shall be placed below and between the coatings to
prevent damage during intermediate storage.
Damage caused during transport and assembly shall be repaired on site in accordance with the
data sheets of the coating material manufacturer.
All repairs, including on-site repairs, of damaged coatings must be carried out using the coating
materials, painting system, corrosion protection materials (brand) and colour specified in Annex
1.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
AZITO PHASE IV PROJECT
COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
(CÔTE D’IVOIRE)
Doc. No.
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Prior to the on-site repair of mechanical damage and any rusty spots of the primer coat, the
surface must be prepared by manual derusting as per ISO 12944-4. Dust and deposits must be
removed before the subsequent coat is applied.
8.10. ENVIRONMENTAL AND SAFETY STANDARDS
The Subcontractor shall be responsible for the safety of personnel under his orders and for
ensuring that they comply with the safety standards legislated for the workplace, both in the
workshop and at site.
Applicable safety requirements shall be observed when applying paint. The area shall be
adequately ventilated and furnished with NO SMOKING signs. The instruments used shall not
produce sparks. Operators must wear gloves, goggles and masks if necessary to prevent contact
of toxic products with the skin and its inhalation.
For ambient protection, all painting procedures detailed in the suppliers’ bids must comply with
the ISO 12944 Standard, both in the workshop and at the site:
-
No specification or use of toxic or carcinogenic substances
-
Reduction of emissions of volatile organic compounds
-
Measures taken against the harmful effects of smoke, dust and noise as well as fire
prevention
-
Protection of the water and flooring during the corrosion protection works
-
Recycling of materials and waste handling
Besides, the Supplier should take into account that it is prohibited to empty paint, solvent or
chemical products in any of the sewage circuits of the Power Plant; and is obliged to follow the
Local Legislation where the work will be performed.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
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Doc. No.
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GENERAL PAINTING
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PAINT SYSTEMS AND SCHEMES
The certification class of a system depends on its ability to withstand the environment in which it
is exposed. The class of paint system to protect equipment is at least of the type:
-
C3-H according to the ISO 12944-2 (2007) standard for non-submerged, non-buried
interior metal structures and equipment (Indoor) of the plant.
-
C5M-H according to the ISO 12944-2 (2007) standard for non-submerged, non-buried
exterior metal structures and equipment (Outdoor) of the plant,
A paint system should comprise at least the following:
-
a primer specifically compatible with the metal to be painted and its surface preparation;
-
an undercoat for weatherproofing and protection;
-
a top coat to give the object being painted its final appearance and durability.
In choosing a paint system, the following parameters should be taken into account:
-
nature of material and quality of surface preparation envisaged;
-
nature and intensity of attacks on the paintwork in normal use;
-
ease or difficulty foreseeable for normal maintenance and refurbishment;
-
Potential painting application methods;
-
drying times and coverage between coats;
-
Compatibility of the various coats.
It is essential that simple rules are followed to obtain the desired protection:
-
painting of metallic surfaces with the primer should be done as soon as possible after
surface preparation;
-
particular attention should be paid to difficult areas that are often the first to show evidence
of change: ridges, weld beads, assembly sealing areas, etc.;
-
apply the recommended thicknesses on a regular basis (distinct coats of colors better
highlight any lack of thickness or blemishes);
-
Carry out all applications by adhering to the manufacturer’s specifications: drying time
between coats, viscosity, nature of thinners, etc. and by taking climatic conditions into
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
(CÔTE D’IVOIRE)
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account (humidity, temperature, etc.). In particular, paint should never be applied to
surfaces whose temperature is close to dew point.
The supplier must comply with the painting specification and with what is described in the annex
I, describes in this document.
In general, the contactor must follow the Color code indicated in Annex II.
9.1. INSULATED SURFACES
In case of insulated surfaces and in order to prevent corrosion under insulation (CUI) the surface
must be free from grease, dust and acid and the priming coat should be roughened for better
adhesion. The use of inorganic zinc-rich coating under insulation (CUI) is not a preferred
system for service temperatures in the range up to approximately 175 °C. Zinc provides
inadequate corrosion resistance in closed and wet environments.
Coating manufacturers shall be consulted regarding the suitability of specific products for
carbon steels under insulation systems.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
AZITO PHASE IV PROJECT
COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
(CÔTE D’IVOIRE)
Doc. No.
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GENERAL PAINTING
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GALVANIZED COATING
Galvanizing of iron and steel items shall be carried out by the hot dip process generally in
accordance with EN ISO 1461.
Minimum dry film thickness of galvanizing shall be 100 microns.
Representative samples, selected by the Employer, of all galvanized material shall be submitted
for galvanizing tests, galvanized fittings associated with insulators and steel cores for aluminum
conductor steel reinforcing cables shall be tested in line with the relevant IEC Recommendation.
All other fittings, fabrications, hardware and fixings shall be inspected and tested in accordance
with ISO Recommendations
All drilling, punching, bending and welding are completed and any burrs completely removed
before galvanizing
Galvanizing process consists of the application of a smooth layer of zinc, which shall have no
defects, constant thickness, bright aspect and crystalline structure.
The zinc to be used shall have a purity of 98,5%. It shall comply with ASTM 56, Z6 AFNOR-NF
A55 or Zn 98,5 ISO/TC 18.
The Constructor should take the silicon and phosphorous content of steel into account to
determine the nature of the galvanization process and the thickness of the zinc coating.
Bolt threads shall be cleaned of surplus spelter by spinning or brushing. Dies shall not be used
for cleaning threads other than on nuts. Nuts shall be galvanized and tapped 0.4mm oversize and
threads shall be oiled.
All bolt-assembled surfaces shall be protected by a layer of painting prior to the assembly. The
painting type shall be submitted to the Employer’s approval. All bolts shall be supplied to site hot
dip galvanized or sherardized as a minimum and site painted as necessary after erection is
complete. Only hot galvanized bolts and fixings are to be used, except for stainless steel
constructions.
Excessively thick or brittle coatings due to high levels of silicon or phosphorous in steel, which
may result in an increased risk of coating damage and/or other features that make the final product
not fit for purpose shall be cause for rejection.
Fixings on galvanized structures using sprays bottles are forbidden. Contractor shall use 85%
zinc-enriched paint. Fixings shall be performed in accordance to ISO 2063.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
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PRODUCTS FROM APPROVED MANUFACTURERS
For AZITO IV power plant, all paint brands used in the plant shall be approved by the COBRA. In
order to ensure that the painting works done under proper quality procedure, all elements or
equipment that needs to be paint shall use the painting brands mentioned in annexes.
Supplier shall submit the painting data sheets and safety data sheets of materials used for coating
protections.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
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GENERAL PAINTING
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INSPECTION AND TESTING
12.1. GENERAL
All the surfaces to be painted will be inspected before and after carrying out the work.
Both for work to be carried out in the workshop as well as for work in the field, the Supplier must
name an inspector who will be responsible for the work, independently of the inspection carried
out by the Client’s Inspector.
The Client’s Inspector will have access at any time to the place where the work is being carried
out, as well as to all the information to inspect any phase of the work.
Before carrying out the tests and inspections the Subcontractor must make sure to dispose of all
necessary technical documentation. The Subcontractor must continuously record, on a daily
basis, the temperature, the ambient conditions and the relative humidity. It must also record the
substrate temperature so that it can calculate the dew point before starting and during the works,
in order to ensure that the application conditions are acceptable. These records must be kept and
made available to Employer.
Any deviation from the paint manufacturer’s instructions or from this Specification will be reported
by the Inspector to the Client who will determine the action to be taken. It shall be considered the
complete painting specification, including surface preparation, application methods, paint
thicknesses, selected equipment, methods for the protection of materials, materials like the
cleaning.
Supplier’s quality assurance document, which shall be prepared according to the related
standards, shall be submitted for approval and shall be used for test and inspection with the
related sections of this specification after its approval.
The Supplier shall redo the incorrect works or repair the defective materials which are not
consistent with this specification.
All the paint suppliers shall verify and prepare the surface prior to the application of the paint
layers. They shall also verify the thickness of the paint coating after each stage of the painting
works.
12.2. INSPECTION APPARATUS
The Supplier must have the standards and apparatus necessary for the inspection and control of
the work, including measurers of humidity, thermometers of surface and atmosphere, cotton
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
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Doc. No.
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cloths to test for the absence of water and oil in the air of the compressors, visual standards for
the standard ISO 8501, measurers of the roughness of surfaces, measurers of the thickness of
the wet and dry coat, detectors of defects in the coat (such as holes, cracks, lack of adhesion,
etc.), viscosimeters, etc.
The test apparatus must be calibrated as many times as necessary.
The apparatus, once calibrated, must display labels in which a serial number is displayed and on
which the date of the last calibration is shown.
12.3. PHASES OF INSPECTION
The inspection of the coatings, both in the workshop and on site, will include all the phases of
work, which may affect the paint, with at least the following being, inspected:
a) The employed method of storage, preparation of surfaces, mixture, application and curing
of the paint. This includes the cleaning conditions and the certification of all the tools and
utensils to be used for the work.
b) Receipt of materials. This will include the inspection of the containers, the documentation
which should accompany these and the conditions of storage.
c) Appropriate environmental conditions both in the preparation of the surfaces and in
application.
d) Substrate before and after preparation of the surfaces: Inspections will be carried out in
compliance with standard ISO 8501, and with the applicable SSPC, keeping records of
the state of the surface before and after the preparation. The roughness of the surface will
also be inspected.
e) Preparation, mixture and application of each painting and specified coats in accordance
with the instructions of the manufacturer of the paint.
Once a surface has been painted, the state of the surface will be checked visually for the below
given list and checked:
a) Holes , voids
b) Blisters and bubbles
c) over spray or sags
d) Rusting,
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
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e) Inadequate cure, and lack of adhesion
f)
Uniformity of color and shine (only on final coats)
g) Absence of peeling
h) Cracks and warping
i)
Continuity and uniformity of the layer
j)
Contamination of the surface
No bowing, stain, weld splatter or coating defect shall be visible to the naked eye.
12.4. INSPECTION AND REJECTION METHODS
12.4.1. PREPARATION AND CLEANING OF SURFACES
Preparation of surfaces prior to the paint application.
The prepared surface shall be controlled according to the photographic “Svensk standard” or
equivalent, corresponding to each stage of the painting works.
Cleaning of surfaces prior to the paint application.
Inspection and diagnostic operations shall be executed according to the following base:
-
Water and salt: to be removed so that no trace is visible to the naked eye.
-
Grease and oil: to be removed so that no trace is visible to the naked eye.
-
Damaged layer: to be removed so that the paint layers which are damaged due to welding
causes are not visible to the naked eye.
-
White rust: to be removed so that it does not dirty the hand that rubs it softly.
12.4.2. MEASUREMENT OF THICKNESSES
The measurement of the thicknesses will be carried out with the appropriate apparatus (magnetic
measurers) and in accordance with the specifications of standard SSPC-PA-2 or ISO 12944-7.
The thickness of the dry film means the thickness of the dry film standard.
The thickness of a dry film shall be measured at the medium of the magnetic thickness gauge.
No measurement of a point (after three readings) should be below 75% of the specified standard
dry film thickness.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
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The average of the thickness-measured values shall be equal or higher than the standard film
thickness.
Frequent measurements of the thickness of the wet coat will be taken during the application.
In case of doubt of the thicknesses applied and the requirements of the inspector, measurements
of the dry film using destructive methods will be taken.
General requirements regarding the number of thickness measurement points shall agree with
the indications here below. With reference to the primary layer, applied at workshop and
protecting from rust, it does not need to comply with the following requirements.
Minimum number of measuring points
Generally speaking, the measures shall be performed according to the following principles. The
minimum number of measuring points shall be agreed with the Client.
1. Flat surface (including big curved surfaces), according to the following table:
Total Area (Sq m) to be tested
<1
1-3
3-10
10-20
20-30
30-100
>100
SSPC-PA 2 Total number of spot measurements
5
5
5
10
15
15
15 plus 5 per each additional 100 square meters
2. Piping and Tanks, according to the following table:
Pipe Diameter
Up to 12 inch (30 cm)
14-24 inches (36-60 cm)
> 24 inches (60 cm)
Circumferential Spot Measurements
4 evenly spaced
6 evenly spaced
8 evenly spaced
Interval Spacing
10 ft (3 m) apart
10 ft (3 m) apart
10 ft (3 m) apart
3. Structural steel → 3 point each 20m2
For the main structure, at least one point for each column or beam.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
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12.4.3. ADHESION TESTS
To paint surfaces in contact with processing fluids, “test panels” should be installed in order to
carry out paint adhesion tests (tape test) in accordance with standard ASTM D 3359 method A at
least once for each different pair of “substrate paint”, and the degree of adhesion must be at least
4A to 5A in accordance with the standard.
12.4.4. DETECTION OF DISCONTINUITIES
Painted steel surfaces which will be used in service under water or buried will be inspected with
a low voltage detector to check for continuity of the coat.
12.4.5. REJECTION
The surfaces in which the coat and/or its application do not comply with the requirements of this
Specification, including the reference standards where applicable and/or those procedures
approved by the Client, will be rejected.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
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DOCUMENTATION
The Subcontractor shall prepare inspection and test reports for all specified items and submit to
COBRA. The inspection reports shall be legibly written on the approved forms for which the
samples will be given by COBRA. If there is a requirement for additional or revised forms, the
Subcontractor shall submit these forms to COBRA for approval before they are used
Suppliers of equipment, tanks, etc. will provide the documentation listed as follows:
-
Complete description of the supply and service with an indication of manufacturers and
materials supplied,
-
Preparation procedures and painting of surfaces both in the workshop and on site.
-
Quality control plan and Plan of inspection points
-
Deviations, alternatives, comments or improvements proposed for this specification along
with technical and economical reasoning
-
Explicit acceptance of guarantees
-
Certificates
-
Copy of the Official Certificate of the Supplier Quality Control System.
The Client, in the course of the evaluation of offers, reserves the right to request any other type
of documentation or further descriptions or clarifications to the documentation indicated above,
as well as calling the meetings and visits deemed necessary.
Copies of the product documentation (Technical Cards) for each type of paint are required,
including the following data:
-
Commercial name of the products.
-
Technical data.
-
Quality certificate.
-
List of tests with the results obtained which prove unequivocally that the product complies
with the stipulated requirements.
-
Instructions for use and special precautions for use and storage.
-
Number and date of the corresponding certification.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
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The Constructor should hand over to Owner for approval during the study phase all instructions
for each item of equipment relating to:
-
Type of surface preparation envisaged;
-
Paint systems to be used;
-
Number and thickness of each coat of each system;
-
Technical datasheets for each type of paint.
The Constructor should justify the choice of paint systems to be used according to the
environment and nature of the corresponding equipment and should pass this information to
Owner for approval.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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WARRANTY
During the entire warranty period, painted metallic surfaces should be kept in good condition for
a period of 2 years (two years), taking account of the nature of the paint system used and the
environment to which it is going to be exposed.
At the end of this period, the product will be deemed to be satisfactory if, for all of the painted
surfaces:
-
Rusting has not exceeded degree Re 3, defined in the European scale for degrees of
rusting for anticorrosive paint;
-
No other change of a one-off nature that could be damaging to the performance of the
final protective system has been observed.
Such changes are either defects in paint adhesion (breakdown, peeling, flaking, etc.) or lack of
continuity in one of the coats of paint (crazing).
The applicator should undertake not to apply any product to metallic surfaces under conditions
not in compliance with point 8 of this specification.
When the effectiveness of the protection proves insufficient during the warranty period, the
supplier or applicator should carry out all retouching work previously mentioned, i.e.:
-
Preparation of the damaged surface to put right defects noted;
-
Reapplication of the coats of paint necessary to protect the metal.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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EXPANSION PROJECT
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GENERAL PAINTING
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REFERENCE DOCUMENTATION
•
AZ-20-YTZ-EG-SPE-IDM-0001 Project Master Data
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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ANNEXES
16.1. ANNEX I PAINTING SYSTEMS
16.2. ANNEX II COLOR CODES
16.3. ANNEX III CIVIL AND STRUCTURAL ELEMENTS PAINTING SUMMARY
16.4. ANNEX IV– APPROVED PRODUCTS
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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AZITO PHASE IV PROJECT
COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
(CÔTE D’IVOIRE)
Doc. No.
AZ-20-VDJ-ME-SPE-IDM-0001
GENERAL PAINTING
SPECIFICATION
Rev.: 1
Page
47
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59
ANNEX I
PAINTING SYSTEMS
The tables included below describe the painting system to be applied to an equipment/material
taking into account its service conditions, and must be considered only as a reference. The
final painting systems will meet the requirements indicated in this specification as per ISO
standards this means that it is referred to environmental type and durability considered.
The equipment / materials Subcontractor shall propose the painting procedures / systems (to be
approved by the Contractor).
Considerations to bear in mind:
•
•
All the thicknesses indicated correspond to the dry coat (see section 7.5).
The preparation of surfaces must be in accordance with section 5 of the specification.
All carbon steel pipes, alloy steel pipes equal to or less than 2", valves 2" and smaller and in
general, any element to be supplied without knowing the exact location in the plant shall be
supplied with protection consisting of a layer of 75 μm of zinc rich inorganic primer.
Structural steel in buildings, piperacks, platforms, etc.
C3, C4, C5, Im1, Im2 and Im3 reference painting systems as per EN ISO 12944-5 (2007). In all
the cases the surface preparation shall be Sa 2 ½ (ISO 8501). Below a table with reference
systems are given.
Others (piping, vessels, tanks, etc.):
C3, C4, C5, Im1, Im2 and Im3 reference painting systems as per EN ISO 12944-5 (2007). Other
systems not covered by EN 12944 will have the characteristics included in the reference systems
provided in the below table. In case of discrepancy of painting systems EN 12944 rules prevail.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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GENERAL PAINTING
SPECIFICATION
SYSTEM
CONDITIONS
A
Carbon steel,
alloy steel and
cast iron (non
heat insulated)
Temp. < 65ºC
(buried)
B1
B2
Carbon steel,
alloy steel and
cast iron subject
to constant
immersion or
intermittent
immersion
Temp. < 65ºC
APPLICABLE
SERVICES
Buried pipes and
equipment
SURFAC
E PREP.
Sa 2 ½
(ISO
8501)
Sa 2 ½
Submerged surfaces in
(ISO
water. Tank interiors
8501)
Carbon steel,
alloy steel, cast
Tanks bottom plate –
iron
soil side
Surfaces Temp. <
65ºC
Sa 2 ½
(ISO
8501)
Rev.: 1
Page
DRY THICKNESS
Primer: 1x80 µm Misc. Type
as per 5.2 ISO 12944
Top coats: 2x210 µm epoxy
glass flake
Total: 500 µm
Painting can be replaced in
case of lined pipe or
wrapped pipe.
48
Carbon Steel
buried pipes may
be provided of
cathodic
protection
For tank interiors
very good
preparation and
cleaning is
required before
Primer: 1x80 µm Misc. Type painting to
as per 5.2 ISO 12944
guarantee proper
Top coats: 2x210 µm epoxy adhesion and
glass flake
protection
Total: 500 µm
durability. For
potable water
epoxy top coats
shall be certified
for this
application.
Primer: 1x100 µm High
solids Modified Epoxy.
Top coats: 2x100 µm High
solids Modified Epoxy
C
E1
Carbon steel,
alloy steel, cast
iron
Indoors
Temp. < 65ºC
Non insulated
Primer: 1x80 µm Misc. Type
as per 5.2 ISO 12944
Immersed or splashed
surfaces in effluents
and sludgers with pH
between 3-10 with or
without solar exposure
Sa 2 ½
Top coats: 2x210 µm epoxy
glass flake
(ISO
8501)
Total: 500 µm
(Epoxy resistant to pH
between 3 and 10).
Elements located
inside buildings
(piping, valves,
equipment, structures,
etc.).
Sa 2 ½
(ISO
8501)
59
NOTES
Total: 300 µm
Carbon steel,
alloy steel and
cast iron subject
to constant
immersion, or
water splash with
solar exposure.
Temp. < 65ºC
of
Primer: 1x60 µm zinc rich
epoxy
Top coat: 1x100 µm epoxy
or aliphatic polyurethane
Total: 160 µm
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
AZITO PHASE IV PROJECT
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AZ-20-VDJ-ME-SPE-IDM-0001
GENERAL PAINTING
SPECIFICATION
SYSTEM
E2
E3a
CONDITIONS
Carbon steel,
alloy steel, cast
iron
Outdoors
Temp. < 65ºC
Non insulated
APPLICABLE
SERVICES
SURFAC
E PREP.
Rev.: 1
Page
DRY THICKNESS
49
E4
The steelwork
shall receive a
minimum of 3
workshop coats
Intermediate coat: 1x100
(prime coat,
µm epoxy or aliphatic
intermediate coat
polyurethane
and final coat).
Top coat: 2x80 µm epoxy or After erection,
touch up/repair
aliphatic polyurethane
shall be
performed on site
Total: 320 µm
where necessary.
Primer: 1x60 µm zinc rich
epoxy
Elements located
outdoors (piping,
valves, equipment,
structures, etc.)
Carbon steel,
alloy steel, cast
iron
Piping, valves,
65ºC < Temp <
equipment
200ºC
Insulated and not
insulated
Sa 2 ½
(ISO
8501)
Insulated surfaces up to
205ºC
Sa 2 ½
(ISO
8501)
F
Carbon steel,
alloy steel, cast
iron
200ºC < Temp <
400ºC
Insulated
Piping, valves,
equipment
Carbon steel,
alloy steel, cast
iron
Temp > 400ºC
Insulated
Elements with high
temperature and
Sa 2 ½
corrosive atmosphere
(ISO
exposure.
8501)
- Examples: Outside of
stack, silencers, etc.
Carbon steel,
alloy steel, cast
iron
200 < Temp. <
400ºC
Non insulated
59
NOTES
Primer: epoxy novolac or
silicone hybrid 1x100 µm
top coat: epoxy novolac or
silicone hybrid 100 µm
To avoid corrosion
under insulation
phenomena zinc
is avoided.
Scheme as per
CS-4 of NACE
SP0198-2010
Total 200 µm
E3b
of
Elements with high
temperature
(chimneys, silencers,
blowers, pipes,
valves…)
Sa 2 ½
(ISO
8501)
Sa 2 ½
(ISO
8501)
Primer: 1 x 75 µm ethyl
silicate zinc rich
Total: 75 µm
Primer: 2x 25 µm silicone
aluminium heat resistant
paint
Total: 50 µm
Primer: 1x 75 µm inorganic
zinc silicate with an ethyl
base
Finishing: (only for noninsulated pipes) 1x 25 µm
aluminium silicon resistant
to 400ºC
Total: 75 µm or 100 µm
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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Doc. No.
AZ-20-VDJ-ME-SPE-IDM-0001
GENERAL PAINTING
SPECIFICATION
SYSTEM
CONDITIONS
H
Non sandblasted
surfaces without
immersion.
Galvanized
elements in
aggressive
environmental
conditions
Temp. < 50ºC
I
Non sandblasted
surfaces without
immersion.
Temp. < 50ºC
Buried concrete
L
APPLICABLE
SERVICES
Rev.: 1
Page
SURFAC
E PREP.
DRY THICKNESS
Galvanized elements
in aggressive
environment or
because of project
requirements.
Example: grating,
handrails.
Cleaning
and
degreasin
g
Primer: 1x50 µm epoxy zinc
phosphate
Finishing: 1x50 µm aliphatic
polyurethane
Total: 100 µm
Outdoor industrial
atmosphere; building
indoor with high
moisture.
Examples: electrical
cabinets
Cleaning
and
degreasin
g
Primer: 1x 80 µm epoxy or
polyester resin-based
primer powder
Total: 80 µm
Concrete deep
constructions or pits in
contact with soil, such
as GTG & STG
pedestals, effluent
treatment plant pit,
Clean and
dry,
removing Bitumen emulsion paint
all the
impurities.
50
of
59
NOTES
General note: the thicknesses given must be considered as a reference. Final values can be
different according to painting material manufacturer´s indication ensuring/guaranteeing
requested corrosion protection. Maximum and minimum tolerances according to paint
manufacturer specifications.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
AZITO PHASE IV PROJECT
COMBINED CYCLE POWER PLANT
EXPANSION PROJECT
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Doc. No.
AZ-20-VDJ-ME-SPE-IDM-0001
GENERAL PAINTING
SPECIFICATION
Rev.: 1
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59
ANNEX II
COLOUR CODES
Colour code according to DIN 5381
NOTES
1. This document does not define when a surface should be painted or which the
applicable procedure is.
2. Colour codes will be based on the standards DIN 5381
3. The colour codes will be applicable to main equipment and systems of the plant.
4. All the piping components will be painted according to the fluid colour defined in above
tables.
5. This document is not applicable for the painting of underground pipes.
6. For non-insulated pipelines in which final coating is aluminium silicon does not apply
any specific colour code.
7. Colour bands as per above table will be applied over insulation cover.
8. Motors shall be painted as per manufacturer standard colour
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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RAL
Item
Electrical building
Colour
RAL
Code
---
---
---
---
Warehouse steel structure
and cladding
Signal Grey
7004
Workshop steel structure
and cladding
Signal Grey
7004
Shelters
Signal Grey
7004
Other building
Silver
Grey
---
HRSG structural steel
Signal Grey
7004
Air inlet filter houses
Signal Grey
7004
Stacks
Colour Tone
(for
information
only. RAL
Code to be
followed)
Doors, windows, etc.
Remarks
Concrete building. Building finish will
be agreed on based on architectural
finishes
Concrete building. Building finish will
be agreed on based on architectural
finishes
High Temperature Painting as per
Manufacturer Standard
HRSG and Bypass stacks painting
specification
Additional colour requirements based
on local regulation to be confirmed
As per GE Painting Specification
As per architectural finishes
FIELD ERECTED TANKS
Water storage
Signal Green
6032
Waste water storage
Signal Green
6032
Signal Red
3001
Firefighting water tank
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
AZITO PHASE IV PROJECT
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GENERAL PAINTING
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Rev.: 1
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59
FLUIDS – PIPING
Note:
Insulated and non-painted (stainless steel, galvanized, non-metallic) piping will have colour bands based on
fluids.
WATER
Feed water
Signal Green
6032
Condensate
Signal Green
6032
Demineralized water
Signal Green
6032
Potable water
Signal Green
6032
Service water
Signal Green
6032
Waste water
Signal Green
6032
Closed Circuit cooling
water
Signal Green
6032
HRSG blow down
Signal Green
6032
Sampling water
Signal Green
6032
Signal Red
3001
Firefighting water
ACC VACUUM SYSTEM
Vacuum system
Signal Grey
7004
STEAM
Steam and water-steam
mixture
Signal Grey
7004
COMPRESSED AIR
Service and instrument air
Signal Blue
5005
FUELS
Natural gas
Signal Yellow
1003
Diesel and diesel engine
exhaust gases
Signal Brown
8002
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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Combustion gases
Signal Yellow
1003
DDO fuel
Signal Brown
8002
Rev.: 1
Page
54
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59
OIL
Lube oil
Signal Brown
8002
GASES
Nitrogen (N2)
Signal Black
9004
CHEMICAL PRODUCTS
Acids
Signal
Orange
2010
Alkalis
Signal Violet
4008
Sodium hydroxide, oxygen
scavenger, sodium phosphate,
corrosion inhibitor,
CHEMICAL PRODUCTS
Piping supports
Valves and piping
accessories
Underground pipes
Signal Grey
7004
According to the fluid system
N/A
N/A
MECHANICAL EQUIPMENT
Gas Turbine and auxiliaries
Steam Turbine and
auxiliaries
HRSG, Bypass Stack and
auxiliaries
According to GE standard
According to GE standard
According to supplier standard
ACC and fin fan coolers
Signal Grey
7004
HVAC machines
Signal Grey
7004
Heat exchangers
Air compressor
Pumps (complete skid)
Not galvanized parts like ACC ducts
and wind walls
According to the fluid system
Manufacturer’s Standard
Manufacturer’s Standard except
firefighting.
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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Firefighting Pumps
(complete skid)
Pressure Vessels
Skid mounted equipment
Signal Red
Rev.: 1
Page
55
of
3001
According to the fluid system
According to the fluid system
ELECTRICAL EQUIPMENT
Generators
---
---
Transformers
Signal Grey
7004
Generator circuit breaker
Signal Grey
7004
IPB Busbars
Signal Grey
7004
Busbars
Signal Grey
7004
MV & LV switchgears
Signal Grey
7004
MCCs and control panels
Signal Grey
7004
Supports for cable trays,
conduits, DC/UPS panels
Signal Grey
7004
Lighting & auxiliary panels
Signal Grey
7004
Emergency diesel
generator enclosure
Signal Grey
7004
Manufacturer’s Standard
These elements shall be hot dip
Galvanized as per EN ISO 1461
The galvanized part shall not be
painted
Manufacturer’s Standard
Motor Body Colour
CRANES AND ELEVATION DEVICES
General
Signal Yellow
1003
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
59
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SAFETY ELEMENTS
Firefighting cabinets,
pumps
Signal red
3001
Galvanized parts shall not be painted
Emergency push buttons
Signal red
3001
Galvanized parts shall not be painted
Signal Green
6032
Galvanized parts shall not be painted
Eye wash showers
Handrails, kick flats and
base board
These elements shall be hot dip
Galvanized as per EN ISO 1461
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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GENERAL PAINTING
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Page
57
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59
ANNEX III
STRUCTURAL ELEMENTS PAINTING SUMMARY
Type of structure
Steel Structures
(Main and
secondary
members, roof
and facade
purlins)
Steel Structures
(Main and
secondary
members,
Shelters and
miscellaneous
supporting
systems)
Location
Indoor
Outdoor
Structural
elements for FFC
and ACC
Outdoor
Pipe and cable
tray supports
Indoor or Outdoor
Protection
system
ISO
class
Painting
Turbine hall,
Warehouse
Gas turbine filter
house
GCB support
RAL7004
structure
IPB indoor supports
GT modules and Eroom supports
E1
C3-H
Painting
Chemical & Waste
shelter
Transformers and
IPB outdoor
supports structural
elements
Sunshade roofs
Pipe racks
Substation
elements
Other shelters and
support structures
E2
C5-MH
Treatment
Structure (not
limitative)
Color
Code
RAL7004
Main and
secondary structure
Galvanization fir fin fan coolers
and air cooled
condenser
Painting
Galvanization
as per EN
ISO 1461
RAL7004
E2
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
C5-MH
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GENERAL PAINTING
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Type of structure
Location
Treatment
Structure (not
limitative)
Rev.: 1
Color
Code
Ladders and
safety cage
58
Protection
system
of
59
ISO
class
Galvanization
as per EN
ISO 1461
Handrails, kickflats Indoor or Outdoor Galvanization
Gratings and
Checquered
plates (Flooring)
Page
Galvanization
as per EN
ISO 1461
Indoor or Outdoor Galvanization
Indoor
Painting
RAL
1003
E1
C3-H
Outdoor
Painting
RAL
1003
E2
C5-MH
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.
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Rev.: 1
Page
59
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59
ANNEX IV
APPROVED PRODUCTS
Manufacturer
First Coat
Touchup
Second Coat
Third Coat
Carboline
Carbozinc 859
Carbozinc 859
Carbothane 133 LH
Carbothane 133 LH
Hempel
Zinc Rich
Epoxy 178US
Zinc Rich Epoxy
178US
Hempathane 55610
Hempathane 55610
International
Interzinc 315
Interzinc 315
Interthane 990UHS
Interthane 990UHS
Jotun
Barrier 90
Barrier 90
Penguard Express
MIO
Hardtop XP
PPG Amercoat
68HS
68HS
450H
450H
Sherwin-Williams
Zinc Clad III
HS
Zinc Clad III HS
Hi-Solids
Polyurethane
Hi-Solids
Polyurethane
Tnemec
Series 90-97
Series 90-97
Series 73
Series 73
Note:
1) Coating manufacturers and products other than those listed herein are subject to
Engineer’s review/approval
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND CAN NOT BE DUPLICATED, MODIFIED OR
DISCLOSED TO THIRD PARTIES FOR ANY USE OTHER THAN THIS PROJECT AND THE PURPOSE FOR
WHICH IT IS INTENDED FOR, WITHOUT THE WRITTEN CONSENT OF COBRA.