09 97 13.24 - STEEL WATER STORAGE TANK PAINTING

Herbert, Rowland & Grubic, Inc. 09 97 13.24-1 011361.0471

SECTION 09 97 13.24 - STEEL WATER STORAGE TANK PAINTING

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Surface preparation.

2. Painting tank exterior.

3. Miscellaneous additional work as indicated.

1.2 REFERENCE STANDARDS

A. American Water Works Association:

1. AWWA D102 - Coating Steel Water Storage Tanks.

B. ASTM International:

1. ASTM D2247 - Standard Practice for Testing Water Resistance of Coatings in 100%

Relative Humidity.

2. ASTM D3363 - Standard Test Method for Film Hardness by Pencil Test.

C. NSF International:

1. NSF 61 - Drinking Water System Components - Health Effects.

D. SSPC: The Society for Protective Coatings:

1. SSPC-PA 1 - Shop, Field, and Maintenance Painting of Steel.

2. SSPC-SP 1 – Solvent Cleaning.

3. SSPC-SP-3 – Powertool Cleaning Standards.

4. SSPC-SP 6 - Commercial Blast Cleaning.

5. SSPC-SP 10 - Near-White Metal Blast Cleaning.

1.3 SUBMITTALS

A. Section 01 33 00 - Submittal Procedures: Requirements for submittals.

B. Product Data: Submit manufacturer information on finishing products.

C. Product Data: Submit Manufacturer’s information for Miscellaneous Work: harnesses, screens and ladder guard.

D. Samples:

1. Submit two paper chip samples, illustrating range of colors available for each scheduled surface finishing product.

E. Manufacturer's Certificate: Certify that products meet or exceed specified requirements.

F. Manufacturer Instructions: Submit special surface preparation procedures and substrate conditions requiring special attention.

Herbert, Rowland & Grubic, Inc. 09 97 13.24-2 011361.0471

G. Field Quality-Control Submittals: Indicate results of Contractor-furnished tests and inspections.

H. Qualifications Statements:

1. Submit qualifications for manufacturer.

2. Submit manufacturer's approval of applicator.

3. Submit Factory-Authorized Service Representative information.

1.4 CLOSEOUT SUBMITTALS

A. Section 01 77 00 - Closeout Requirements: Requirements for submittals.

B. Operation and Maintenance Data: Submit data on cleaning, touchup, and repair of painted surfaces.

1.5 QUALITY ASSURANCE

A. Comply with AWWA D102.

B. Obtain paint products from single source for Work specified in this Section.

1.6 QUALIFICATIONS

A. Manufacturer: Company specializing in manufacturing products specified in this Section with minimum ten years' documented experience.

B. Section 01 61 00 - Product Requirements: Requirements for transporting, handling, storing, and protecting products.

C. Container Labeling: Include manufacturer's name, type of coating, brand name, lot number, brand code, coverage, surface preparation, drying time, cleanup requirements, color designation, and instructions for mixing and reducing.

D. Inspection:

1. Accept materials on Site in manufacturer's sealed and labeled containers.

2. Inspect for damage and to verify acceptability.

E. Store materials in ventilated area and otherwise according to manufacturer instructions.

F. Protection:

1. Protect materials from moisture and dust by storing in clean, dry location remote from construction operations areas.

2. Provide additional protection according to manufacturer instructions.

1.7 AMBIENT CONDITIONS

A. Section 01 50 00 - Temporary Facilities and Controls: Requirements for ambient condition control facilities for product storage and installation.

Herbert, Rowland & Grubic, Inc. 09 97 13.24-3 011361.0471

B. Do not apply paint in rain, snow, fog or mist, or when steel surface temperature is below dew point resulting in condensation.

C. Do not apply materials when surface and ambient temperatures are outside temperature ranges indicated by paint product manufacturer.

D. Prevent rapid changes in temperature during curing and thermal shock cracks in finish material.

1.8 WARRANTY

A. Section 01 78 36 - Warranties: Requirements for warranties.

B. Furnish two year Special Warranty for complete painting system, including installation:

1. Areas exhibiting 25% or more failure shall be completely redone at no cost.

Exterior roof, shell, belly, center riser pipe and legs will be considered separate areas for determining entire areas to be redone.

2. Prior to the end of the warranty period, at a time convenient to the Owner, the contractor shall conduct an inspection of all tank surfaces originally reconditioned for failures. This inspection shall include the Owner, Engineer and paint manufacturer’s Factory Authorized Representative. It is the Contractor’s responsibility to make arrangements for the warranty inspection, including securing the required services of the paint manufacturer’s Representative.

Failure by the Contractor to schedule the inspection prior to the expiration of the warranty period, shall cause the warranty to remain in effect until the Contractor has met the warranty inspection requirements. The Contractor shall provide close, safe, OSHA compliant accessibility to observe the exterior surfaces for all attendees. All costs required for the inspection shall be the responsibility of the Contractor.

a. Any corrective measures required due to the warranty inspection results shall take place at a time convenient to the Owner. If such corrective work requires the tank to be drained, all costs associated with the draining, disinfection, refilling, water quality sampling and testing shall be the responsibility of the Contractor.

PART 2 - PRODUCTS

2.1 PERFORMANCE AND DESIGN CRITERIA

A. Exterior Paint Performance Test Requirements:

1. Exterior Exposure:

a. Requirements: No blistering, cracking or delamination of film, and not less than 85 percent gloss after 18 months of exposure.

2. Hardness:

a. Method: Comply with ASTM D3363.

b. Requirements: Minimum 6H.

3. Humidity:

a. Method: Comply with ASTM D2247.

Herbert, Rowland & Grubic, Inc. 09 97 13.24-4 011361.0471

b. Requirements: No blistering, cracking, softening or delamination of film after 5,000 hours of exposure.

2.2 PAINT

A. Manufacturers:

1. Sherwin-Williams (SW).

2. Tnemec.

3. Or approved equal: As specified in Section 01 61 00 - Product Requirements.

2.3 PAINT MATERIALS

A. Exterior Paint: Full Prime:

1. SW Macropoxy 5000 Penetrating Epoxy Primer/Sealer. 1.5 – 2.5 mil dry film thickness.

2. Tnemec #108/109 Probond. 1.5 – 2.5 mil dry film thickness.

3. Or approved equal.

B. Exterior Paint: Full Intermediate:

1. SW Macropoxy 646 FC Beige Epoxy. 3.0 – 4.0 mil dry film thickness.

2. Tnemec #69 Beige Epoxy. 3.0 – 4.0 mil dry film thickness.

3. Or approved equal.

C. Exterior Paint: 1st Finish:

1. SW #250 Semi-Gloss Urethane. 2.0 – 4.0 mil dry film thickness. Color to be selected by Owner.

2. Tnemec #1095 Endurashield Urethane. 2.0 – 4.0 mil dry film thickness. Color to be selected by Owner.

3. Or approved equal.

D. Exterior Paint: Final Finish:

1. SW Fluoro-Kem HS 100 Gloss Urethane. 2.0 – 3.0 mil dry film thickness. Color to be selected by Owner.

2. Tnemec #V700 Hydroflon Urethane. 2.0 – 3.0 mil dry film thickness. Color to be selected by Owner.

3. Or approved equal.

2.4 MISCELLANEOUS ITEMS

A. Harnesses: Provide two new OSHA compliant matched large and extra large harnesses equipped with front/back D rings, one left side waist D ring, one right side waist D ring with two cable connection slides per individual cable (match to existing cables). Provide two double 100% tie off lanyards per harness.

B. Screens: Replace exterior roof mounted ventilation unit and ground level overflow pipe screens with new screens meeting the requirements of the Pennsylvania Department of Environmental Protection.

Herbert, Rowland & Grubic, Inc. 09 97 13.24-5 011361.0471

C. Ladder Guard: Provide and install new heavy gauge aluminum ladder guard on the lower 10’ of the leg mounted access ladder. Ladder guard to be as manufactured by Emper Enterprise, LLC or approved equal.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Section 01 73 00 - Execution Requirements: Requirements for application examination.

B. Existing paint has not been tested for lead, other heavy metals or other materials considered to be hazardous due to the age of the tank. Contractor shall conduct his own testing and proceed with the work based on those results in accordance with all Federal, State and Local regulations governing the work.

C. Contractor shall communicate with all cellular or other antenna carriers when work is to be performed near, around and/or in front of their cellular and/or other antenna units, so the units can be de-energized for the time needed to accomplish such work until the work has been completed and the units can be re-energized:

1. All workers shall be trained in RF.

2. Contractor shall be responsible for all damage to the antennas, cellular antennas, equipment, cables, cabinets, buildings, etc. when contractor actions are responsible and/or contribute to the damage.

3. The cellular/other carrier(s) are responsible to properly and adequately cover, wrap and protect cables and antenna units or other equipment. Should the painting contractor determine that such covering/protection is not adequate, the carrier(s) shall address those issues as required by the Contractor.

4. Cellular/other antennas, cables and equipment shall not be painted.

D. Verify that substrate conditions are ready to receive Work as indicated by paint manufacturer.

E. Examine surfaces scheduled to be finished prior to commencement of Work, and report conditions capable of affecting proper application.

3.2 PREPARATION

A. Section 01 73 00 - Execution Requirements: Requirements for application preparation.

B. Protection:

1. Cover miscellaneous tank openings, except as required for ventilation, to avoid accumulation of cleaning residue and paint material in overflows, inlet and outlet piping.

2. Exterior Tank:

a. Cover tank vents without sealing tight to prevent contamination of tank interior.

b. Maintain ventilation of tank interior.

3. Protect equipment from abrasion and paint damage.

Herbert, Rowland & Grubic, Inc. 09 97 13.24-6 011361.0471

C. Protect surfaces from rapid curing caused by wind or sun exposure.

D. Prevent rapid changes in temperature during curing and thermal shock cracks in finish material.

E. Clean exterior by wetting the surface with potable water, applying paint supplier recommended surfactant to the wetted surfaces, scrubbing the surfaces with stiff bristle brushes/brooms and rinsing with potable water, removing all dust, dirt and water soluble contamination.

F. Remove non-water soluble contamination by solvent wiping in accordance with SSPC-SP- 1 with clean solvent and rags as directed by the paint supplier.

G. Spot clean rusted and peeling paint locations in accordance with SSPC-SP 3 Power Tool Cleaning. Sand smooth fractured paint film edges.

H. Remove residue from surface preparation before paint application has begun.

I. Submit Factory-Authorized Service Representative inspection report prior to the initial application.

3.3 APPLICATION

A. According to manufacturer instructions and SSPC-PA 1.

B. Thinning:

1. Do not thin paint except if approved by Engineer.

2. Thin paint according to manufacturer instructions.

C. Coats:

1. Apply paint at manufacturer's recommended application rate.

2. Build up paint film for each coat to specified thickness.

3. Apply additional coats as necessary to achieve specified thickness.

4. Detrimental runs, sags and drips (as determined by the paint manufacturer) shall be removed by sanding smooth prior to the next specified application of material.

Runs, sags and drips in the finish coat shall be sanded smooth and recoated. Finish coat shall be uniform in color and gloss/sheen.

5. Ensure that each coat of paint is cured according to manufacturer instructions before application of succeeding coat.

6. Allow minimum 24 hours between coats.

7. Submit Factory-Authorized Service Representative inspection reports prior to each application.

8. Contractor shall request and receive the Engineer’s approval prior to application of first coat and every subsequent coat.

D. Modify tint or color between coats to aid in obtaining complete coverage.

E. Contractor is fully and solely responsible for any, and all damages attributed to their work.

Herbert, Rowland & Grubic, Inc. 09 97 13.24-7 011361.0471

3.4 FIELD QUALITY CONTROL

A. Section 01 40 00 - Quality Requirements: Requirements for inspecting and testing.

B. Notify Engineer minimum three days in advance, to permit observation of cleaned surfaces prior to application of each coat of paint prior to subsequent paint applications.

C. Perform wet film thickness test.

D. Provide Manufacturer’s Factory-Authorized Service Representative services for the project:

1. Provide written documentation, including recommendations, of all visits.

2. Representative shall make an assessment of the exterior washing of the tank before the contractor proceeds with the application of the first coat of paint.

3. Representative shall make one site visit after the application of each coat of paint.

4. Representative shall inspect the final work within one week of completion of the work.

5. Representative shall be available at the site to address any paint related issues within 24 hours notification.

3.5 CLEANING

A. Section 01 73 00 - Execution Requirements: Requirements for cleaning.

B. Collect waste material capable of constituting fire hazard, place in closed metal containers, and remove daily from site.

C. Remove scaffolding, ladders, or other facilities upon completion of Work.

END OF SECTION