6746D
DULUX POWDER AND INDUSTRIAL COATINGS
1.
GENERAL
This section relates to the preparation of surfaces, and the application of Dulux
decorative powder coatings.
1.1
RELATED WORK
Refer to ~ for ~.
1.2
ABBREVIATIONS AND DEFINITIONS
Refer to the general section 1232 INTERPRETATION & DEFINITIONS for abbreviations
and definitions used throughout the specification.
The following abbreviations apply specifically to this section:
AAMA
American Architectural Manufacturers Association
DFT
Dry Film Thickness
WANZ
Windows Association of New Zealand
Documents
1.3
DOCUMENTS REFERRED TO
Refer to the general section 1233 REFERENCED DOCUMENTS. The following
documents are specifically referred to in this section:
AS/NZS 1580.108.1
Methods of test for paints and related materials Determination of dry film thickness on metallic substrates - Non
destructive methods
AS 1627.1
Metal finishing - Preparation and pretreatment of surfaces - Method
selection guide - Removal of oil, grease and related contamination
AS 1627.2
Metal finishing - Preparation and pretreatment of surfaces - Method
selection guide - Power tool cleaning
AS 1627.4
Metal finishing - Preparation and pretreatment of surfaces - Method
selection guide - Abrasive blast cleaning
AS 1627.5
Metal finishing - Preparation and pretreatment of surfaces - Method
selection guide - Pickling
AS 3715
Metal finishing - Thermoset powder coatings for architectural
applications
AS 3754
Safe application of powder coatings by electrostatic spraying.
AS 4506
Metal finishing - Thermoset powder coatings
AS/NZS ISO 9001 Quality management systems - Requirements
BS 3900
Methods of tests for paints, Part C5: Determination of film thickness
1.4
RELATED DOCUMENTS
Related documents not referred to in this section are:
AAMA 2603
Voluntary specification, performance requirements and test
procedures for pigmented organic coatings on aluminium extrusions
and panels
AAMA 2604
Voluntary specification, performance requirements and test
procedures for high performance organic coatings on aluminium
extrusions and panels
AAMA 2605
Voluntary specification, performance requirements and test
procedures for superior performing organic coatings on aluminium
extrusions and panels
1.5
MANUFACTURER/SUPPLIER DOCUMENTS
Manufacturer's and supplier's documents related to this section are:
Dulux specification sheets and product data sheets
Copies of relevant literature are available from Dulux
Web:
www.duluxpowdercoatings.co.nz/product_detail.shtml
Telephone:
0800 800 975
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Warranties
1.6
WARRANTY
Warrant this work under normal environmental and use conditions against failure:
Warranty period Applied in accordance with application and preparation procedures
materials:
according to AS 3715 as specified in the Dulux specification
sheets.
Warranty period Powder coating range specified will reflect warranty period.
execution:
Refer to the general section 1237 WARRANTIES for additional requirements.
Requirements
1.7
NO SUBSTITUTIONS
Substitutions are not permitted to any specified Dulux powder coating product or
associated accessories.
1.8
QUALIFICATIONS
Current certification as an Dulux Powder coatings Registered Applicator.
To obtain warranties, applicators must be Dulux Registered Applicators.
1.9
MAINTENANCE INSTRUCTIONS
Provide Dulux powder coating manufacturer's maintenance instructions for the owner
including frequency of cleaning.
Refer to Dulux DuSpec specification sheets and product data sheets for details or go to:
www.duluxpowdercoatings.co.nz/use_care.shtml
Performance
1.10
QUALITY ASSURANCE
Maintain quality assurance programmes to AS/NZS ISO 9001 or other industry
recognised quality procedures for powder coating and other specialist coatings as
necessary to ensure that work is performed in accordance with this specification and the
qualifying requirements of the contract documents.
1.11
HEALTH AND SAFETY
Follow the guidelines laid down in AS 3754 Safe application of powder coatings by
electrostatic spraying.
1.12
MATERIAL SAFETY DATA SHEETS
Visit www.duluxpowdercoatings.co.nz or telephone Dulux Powder & Industrial
Coatings (0800 800 975) for the material safety data sheets for every applicable product
and comply with the safety procedures listed. Keep sheets on the site.
1.13
FINISH SAMPLES
Submit for assessment before fabrication a sample of the specified finish to all exposed
window and door sections, in the selected colour, including a statement of the minimum
film thickness. On acceptance these will be used as quality control samples (for visual
appearance only not for durability testing).
1.14
CERTIFY COATINGS
Certify on request, compliance with this specification and support with control and
sampling records. Test for film thickness to BS 3900, part C5, method No. 4, using
method (b) or to AS/NZ 1580.108.1 for certifying thickness and method (a) where any
dispute arises as to the thickness provided.
1.15
DULUX INSPECTION
Permit representatives of Dulux to inspect the work in progress and take samples of their
products from site if requested.
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2.
PRODUCTS
Materials
2.1
POWDER COATING
Single coat polyester based powder coating for use on interior or exterior architectural
aluminium products. Refer to SELECTIONS for system and colour.
3.
EXECUTION
Conditions
3.1
GENERALLY
Powder coat articles to AS 3715, AS 4506 and WANZ guides for powder coatings on
architectural aluminium products, and as specified.
3.2
SURFACE PREPARATION
Remove all foreign matter from metal surface to be powder coated. Remove scale,
grease, cutting oil, welding splatter, grind off burrs, welding slag and sharp arrises and all
other defects that could affect appearance.
3.3
SURFACE PRE-TREATMENT
Condition the surface to render it suitable for the selected coating to be applied. This pretreatment should impart uniformity throughout all treated workpiece surfaces, irrespective
of the source of the metal or the contaminants that might adhere.
3.4
CONDITIONS FOR PREPARING STEELWORK
Prepare steelwork in conditions suitable for the application of coatings. Carry out
preparation and coating applications under cover, in a controlled environment and with
adequate lighting.
Preparation - generally
3.5
ACID CLEANING
Remove rust, scale and zinc oxides using acid or alkali solution.
3.6
WIRE BRUSHING AND POWER TOOL CLEANING
Remove oil and grease by the use of solvents, detergent, emulsion cleaners and alkali
cleaners. Scrape and power wire brush to minimum class St 2 finish to AS 1627.2.
Clean to bright metal, avoid producing a polished surface. Check that no burrs or sharp
arrises remain which may prevent the full coating thickness being attained. Alternative
method includes abrasive blasting AS 1627.4, Class 1.
3.7
ABRASIVE BLASTING
Remove oil and grease by the use of solvents. Abrasive blast clean to a class 2½ finish
to AS 1627.4. Clean to bright metal, but avoid producing a polished surface. Select grit
type and equipment such that the cleaned surface profile between peaks and valleys
does not exceed one third of the dry film thickness. Check that no burrs or sharp arrises
remain which may prevent the full coating thickness being attained.
Preparation - aluminium
3.8
CHEMICAL SURFACE PRE-TREATMENT
Ensure substrate is clean and pre-treated as required. Components must receive a full
multi stage chromate or chrome phosphate conversion coating to clean and condition the
substrate.
Preparation - iron/steel
3.9
CHEMICAL SURFACE PRE-TREATMENT
Either iron phosphate or zinc phosphate conversion coatings to provide corrosion
resistance.
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3.10
DEGASSING POROUS ZINC LAYERS
Fully de-gas the substrate by heating the object to a temperature 15°C above the peak
metal temperature.
3.11
PREPARATION FOR CORROSION PROTECTION
Remove all slag. For welds exposed to view, remove splatter and grind to a neat, clean
finish.
Sand blast or wire brush after completion of the fabrication. Preclean steelwork to AS
1627.1 followed by acid pickling to AS 1627.5. Apply the required coating to the coating
manufacturers' requirements. Apply coating within 4 hours of preparation. Work off site
wherever possible. Surfaces that are in contact or near contact to receive specified
coating before assembly.
3.12
PREPARATION FOR GALVANIZED SURFACES
Remove grease, oil and other solvent-soluble contaminants by wiping with mineral
turpentine or white spirit. Finally wipe with a clean solvent. Allow to dry and proceed with
the next operation immediately. Abrade surfaces to a medium coarse type finish to
provide an adhesion key.
Priming
3.13
PRIMING GENERALLY
Ensure substrate is clean and pre-treated to manufacturer's recommendations prior to
priming commencing. Apply the relevant primer as a system with Dulux polyester
topcoat. Carefully prepare the steel surface and apply Dulux primer to manufacturer's
instructions:
- degrease and abrasive blast clean to class 2.5 or other selected pre-treatment process
and apply Dulux primer as per manufacturer's recommendations.
- apply Dulux polyester topcoat 60 to 80 microns
Application - coating metals
3.14
APPLY DULUX POWDERCOATING
Apply Dulux powder coatings to the recommended average thickness specified for the
selected powder coating on architectural aluminium products.
Completion
3.15
REPAIR WORK
In situ repair work of warranty polyester or fluoropolymer coated aluminium is only
permitted after receiving written authority. All repair work to Dulux manufacturer's
recommendations. Replace all damaged material.
3.16
PROTECTIVE COVERINGS DURING TRANSPORTATION AND INSTALLATION
Provide protective coverings and coatings where required to prevent marking of surfaces
visible in the completed work and to protect aluminium joinery from following trades.
Remove protection on completion.
3.17
ENSURE
Ensure all elements are free of marks or blemishes.
3.18
REPLACE
Replace damaged, cracked or marked elements.
3.19
LEAVE
Leave work to the standard required by following procedures.
4.
SELECTIONS
Substitutions are not permitted to the following, unless stated otherwise.
Exterior and Interior Powdercoating - Metal
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4.1
POWDERCOATING - DURATEC
Coating type:
Low VOC Powdercoating
Preparation:
PMP055
System:
DULUX Duratec (NZDP0968) DuSpec NZSP1312
Finish:
~
4.2
POWDERCOATING - DURALLOY
Coating type:
Low VOC Powdercoating
Preparation:
PMP055
System:
DULUX Duralloy (NZDP0967) DuSpec NZSP1308
Finish:
~
4.3
POWDERCOATING - FLUOROSET FP
Coating type:
Low VOC Powdercoating satin
Preparation:
PMP055
System:
DULUX Fluoroset FP (NZDP1246) DuSpec NZSP1695
4.4
POWDERCOATING - ANTI GRAFFITI
Coating type:
Low VOC Powdercoating gloss - anti graffiti
Preparation:
PMP055
System:
DULUX Anti Graffiti (NZDP0971) DuSpec NZSP1314
Interior and Exterior Powdercoating - Antibacterial, antifungal, antimould
4.5
POWDERCOATING - ANTIBACTERIAL, ANTIFUNGAL, ANTIMOULD
Coating type:
Antibacterial Low VOC Powdercoating Clinikill®
Preparation:
To the Datasheet for the powder type used
System:
To the Applicators Manual for the powder type used
Interior Powdercoating - MDF system
4.6
POWDERCOATING - MDF
Coating type:
Low VOC Powdercoating Trimatrx® Low cure
Preparation:
To DULUX Trimatrx® Applicators Manual
System:
To DULUX Trimatrx® Applicators Manual
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