SPECIFICATIONS - DETAILED PROVISIONS
Section 09872/09873 - Tank Painting (l-1-S, 0-1-S)
CONTENTS
PART 1 - GENERAL ............................................................................................................................. 1
1.01 DESCRIPTION ............................................................................................................................. 1
1.02 QUALITY ASSURANCE ................................................................................................................ 1
1.03 SUBMITTALS .............................................................................................................................. 1
1.04 PRODUCT DELIVERY .................................................................................................................. 2
1.05 JOB CONDITIONS ....................................................................................................................... 2
1.06 ALTERNATIVES AND ALLOWANCES ........................................................................................... 2
1.07 GUARANTEE .............................................................................................................................. 3
PART 2 - PRODUCTS .......................................................................................................................... 3
2.01 MATERIALS ................................................................................................................................ 3
PART 3 - EXECUTION ......................................................................................................................... 4
3.01 INSPECTION ............................................................................................................................... 4
3.02 PREPARATION ........................................................................................................................... 4
3.03 APPLICATION ............................................................................................................................. 5
3.04 FIELD QUALITY CONTROL ............................................................................................................ 5
3.05 ADJUSTMENTS AND CLEANING ................................................................................................ 5
3.06 PAYMENT .................................................................................................................................. 6
Rev: 10/24/05
Tank Painting (l-1-S, 0-1-S)
Section 09872/09873 – 1
SECTION 09872/09873
TANK PAINTING (L-1-S, 0-1-S)
PART 1 - GENERAL
1.01
DESCRIPTION
The Contractor shall furnish all material, equipment, and labor for surface preparation, priming, and
painting of steel water tanks.
1.02
QUALITY ASSURANCE
Quality assurance includes the requirements of this specification, the latest revision American Water
Works Association standard (AWWA D-102), and the requirements of the paint manufacturer as
applicable. Unless specifically stated otherwise, the most stringent requirement will govern when
there is a conflict.
1.03
SUBMITTALS
The Contractor shall submit paint data for approval by the Engineer. The submittal shall include the
following:
A.
Paint description.
B.
Typical uses for the paint.
C.
Manufacturer's recommended surface preparation.
D.
Manufacturer's recommended application methods including:
1.
2.
3.
4.
5.
Appropriate thickness in mils of each coat.
Curing time.
Pot life.
Application equipment and methods.
Acceptable climatic conditions for applications.
E.
Safety data.
F.
Shipping and storage recommendations.
G.
Performance criteria.
H.
Color chart for EMWD color selection.
Tank Painting (l-1-S, 0-1-S)
Section 09872/09873 – 2
1.04
PRODUCT DELIVERY
The Contractor shall store and handle the paint in accordance with manufacturer's recommendations.
The Contractor also shall familiarize himself and comply with all applicable state, county and municipal
rules and regulations pertaining to sanitation, fire protection, barriers, warning lights and signs.
1.05
1.06
JOB CONDITIONS
A.
Contractor's Equipment. The Contractor shall provide such modern plant and
equipment as may be necessary in the opinion of the Engineer to perform in a
satisfactory and acceptable manner, and in accordance with the specifications, all the
work required of the Contractor.
B.
Overspray and Dust Abatement. The Contractor shall furnish all labor, equipment and
means required and shall carry out protective measures wherever and as often as
necessary to prevent his operations from producing overspray or dust in amounts
damaging to property or causing nuisance. The Contractor shall be responsible for any
damage resulting from overspray or dust originating from his operations. The
abatement measures shall be continued until all surface preparation and painting is
completed. All compensation to be received for overspray and dust abatement shall be
included in the prices named for appropriate items of the bidding sheet.
C.
Power. The Contractor shall provide at his own expense all necessary power required
for his operations under the contract.
D.
Air Pollution. The Contractor shall comply with all air pollution regulations.
ALTERNATIVES AND ALLOWANCES
A.
All coatings and primers shall be products of a single manufacturer. Acceptable brands
of paint are:
1.
2.
3.
4.
5.
B.
Amercoat
Engard
Koppers
Tnemec
Glidden
The Contractor may perform surface preparation and priming at the erection site or at
the fabrication plant.
Tank Painting (l-1-S, 0-1-S)
Section 09872/09873 – 3
1.07
GUARANTEE
The Contractor shall guarantee that the entire work under the contract will fully meet all requirements
as to quality of workmanship and of materials furnished by him. The Contractor agrees to make at his
own expense any repairs or replacements made necessary by defective materials or workmanship
supplied by him which have become evident within two years after the Notice of Acceptance of the
Work is filed, and to restore to full compliance with the requirements of these specifications any part
which, during said two year period, is found to be deficient with respect to any provisions of this
specification. The Contractor shall make all repairs and replacements promptly, upon receipt of
written corders for same from the Engineer. If the Contractor fails to make the repairs and
replacements promptly, the District may do the work and the Contractor and his surety shall be liable
to the District for the cost thereof. The first anniversary inspection will be performed between eleven
and twenty three months after the filing of the Notice of Acceptance. The draining of the tank will be
performed when there will be minimum inconvenience to the District.
The Contractor shall be notified at least two weeks prior to the first anniversary inspection.
PART 2 - PRODUCTS
2.01
MATERIALS
A.
Interior coating shall be a coating system in accordance with the requirements of
Section 3, AWWA Specification D-102, Inside Paint System No. 1 (I-1-S). It shall have a
minimum of three coats of two component catalyzed epoxy paint system with a
minimum TDFT of 10 mils.
B.
Exterior coating shall be a coating system in accordance with the requirements of
Section 2, AWWA Specification D-102 Outside Paint System No. 1 (O-1-S) except that the
primer coat shall be 3.0 mil thickness and the total system shall be 6 mils.
C.
Alternate contrasting colors for each coat shall be used to facilitate inspection and to
prevent incomplete coverage of each coat.
D.
Exterior color. The color of the exterior coating of the tank shall be semi-gloss, EMWD
tan or as specified by the Engineer in the Special Conditions. The Contractor shall
submit color samples for approval prior to painting.
E.
Heavy Metals including lead, chromates and mercury are not permitted. Any coating
containing toxins that require hazardous waste treatment or disposal, are not
permitted.
Tank Painting (l-1-S, 0-1-S)
Section 09872/09873 – 4
PART 3 - EXECUTION
3.01
3.02
INSPECTION
A.
Materials. All materials furnished shall be subject to rigid inspection and no material
shall be used in the work until it has been inspected and accepted by the Engineer.
B.
Tank Repair. During sandblasting, if any holes are detected in the steel tank, the
inspector will be informed and the District given time to repair the tank prior to
painting. The inspector will inspect all surfaces prior to painting to determine if any tank
repairs are required.
C.
Paint testing shall be in accordance with the manufacturer's recommendations and
AWWA recommendations.
D.
Holiday testing will be done on all interior surfaces with a wet-sponge low voltage
holiday detector.
E.
Disinfection and Contaminant Analyses will be performed by the Contractor, and District
will take bacteria samples.
PREPARATION
A.
Interior Surface Preparation. The interior surfaces of the tank and all appurtenances
within the tank shall be thoroughly dried and sandblasted to near-white metal as
defined by Steel Structures Painting Council Surface Preparation Specification No. 10
(SSPC-SP10). All dust shall be removed by brushing or industrial vacuum. Sandblasted
surfaces shall not be left overnight prior to prime coating.
B.
Exterior Surface Preparation. All exterior surfaces shall be blast-cleaned as specified in
Steel Structures Painting Council Surface Preparation Specification No. 6 (SSPC-SP6)
(Commercial Blast Cleaning), and all mill scale shall be removed. Sandblasted surfaces
shall not be left overnight prior to prime coating, and the exterior surface shall be
cleaned thoroughly, having the surface free of all dust, moisture and any impurities.
C.
Roof Rafter and Roof Plate Preparation. All inaccessible areas including all roof rafters
and interior roof plates shall be sandblasted in accordance with the specifications
(SSPC-SP10) and finish coated to a minimum TDFT of 8 mils prior to erection and
placement.
Tank Painting (l-1-S, 0-1-S)
Section 09872/09873 – 5
D.
3.03
Pre-Erection Coat Repair. Any damage suffered to the pre-erection coating during
erection of the tank shall be repaired after erection and prior to application of the top
coat. Pre-erection coatings shall be brushed off blasted or washed as recommended by
the manufacturer if the maximum recommended recoating time has been exceeded.
APPLICATION
A.
The underside of the flat-bottom tanks are not considered to be a part of the tank
exterior for purposes of painting.
B.
All surfaces that are sandblasted and primed at the tank site prior to erection shall be
supported at least one foot above the ground during surface preparation and priming to
aid in the prevention of contamination of the primer with dirt.
C.
All paint systems to be applied in strict accordance with the manufacturer's
recommendations and AWWA D-102, with the Contractor responsible for curing with
the required forced-ventilation.
D.
All welds and irregular edges shall be brushed in addition to the spray coating for the
first and second coats.
3.04 FIELD QUALITY CONTROL
Contractor's Equipment. The Contractor shall provide such modern plant and equipment as may be
necessary in the opinion of the Engineer to perform in a satisfactory and acceptable manner, and in
accordance with the specifications, all the work required of the Contractor.
3.05
ADJUSTMENTS AND CLEANING
Cleaning up During Construction. The Contractor shall keep the premises occupied by him in a neat
and clean condition, and free from unsightly accumulation of rubbish. Upon completion of the work
and before the final estimate is submitted, the Contractor shall, at his own cost and expense,
satisfactorily dispose of or remove from the vicinity of the work all plants, buildings, rubbish, unused
materials, and other equipment and materials belonging to him or used under his direction during the
construction, and in the event of his failure to do so, the same may be removed and disposed of by the
District at the Contractor's expense.
Tank Painting (l-1-S, 0-1-S)
Section 09872/09873 – 6
3.06
PAYMENT
Payment for painting completed and accepted will be paid for on a lump sum basis at the bid prices as
stated in the contract documents, which prices shall constitute full compensation for furnishing and
delivery of all labor, equipment, tools and materials necessary to complete the described work in
place.
END OF SECTION 09872/09873