Attachment 6 Supplemental Specifications.pdf

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OPEN MARKET CONSTRUCTION CONTRACT

GENERAL SPECIFICATIONS AND CONTRACT PROVISIONS

Section 09910 Field Painting Structural Steel

PART 1 GENERAL

1.1. SUMMARY

1.1.1. The work of this section consists of surface preparation and field application of structural steel coatings.

1.2. REFERENCES

1.2.1. NACE (National Association of Corrosion Engineers) - Industrial Maintenance

Painting.

1.2.2. NPCA (National Paint and Coatings Association) - Guide to U.S. Government Paint

Specifications.

1.2.3. SSPC (Steel Structures Painting Council) - Steel Structures Painting Manual.

1.3. SUBMITTALS

1.3.1. See Open Market General Specifications contract for submittal procedures, as well as the project AF Form 66 for a schedule of all required project submittals.

1.3.2. Submit the following information on paint systems for approval:

1.3.2.1. Description of product

1.3.2.2. Intended uses and exposures of the product

1.3.2.3. Technical data on the formulation and components

1.3.2.4. Description of surface preparation required

1.3.2.5. Application information, including written recommendations and instructions for this project

1.3.2.6. Safety information and precautions, including Safety Data Sheets

1.3.3. If the proposed equivalent system literature requires a higher degree of surface preparation/profile or greater film thickness than specified in this Section, follow the submittal requirements, with no additional compensation.

1.3.4. MEASUREMENT OF DRY FILM THICKNESS. Measure and completely document coating thickness by calibrated magnetic film thickness gauge according to the requirements of SSPC-PA Volume 2, Method for Measurement of Dry Paint Thickness with Magnetic Gauges.

Destructive testing of the dry film thickness of each coat may be performed with a Tooke gauge. Repair damaged areas.

1.4. QUALITY ASSURANCE

Comply with the following quality control and quality assurance rules:

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1.4.1. Use the best practices of the trade.

1.4.2. Use applicable portions of the SSPC-PA Volume 1, Shop, Field and Maintenance Painting when they do not conflict with contract Specifications.

1.4.3. Have current copies of SSPC-PA Volumes 1, 2, and 3 on site at all times. Supply them to your crew for reference.

1.4.4. Require your Quality Control Inspector to monitor and document daily all equipment, manpower, materials, surface preparation, ambient conditions, paint application and product millage to conform with the Specifications and with the coating system manufacturer's written recommendations. Submit daily reports.

1.4.5. Prior to requesting a final inspection by the Government, submit a report signed by the Quality Control Inspector, certifying that all work complies with the Plans and Specifications.

Correct the following defects without additional compensation or contract time:

1.4.6. Coats thinner than minimum dry film thickness specified

1.4.7. Coats with excessive millage (Remove coats with excessive millage according to the coating manufacturer's written instructions and recoat to Specifications.)

1.4.8. Unauthorized paint application (Remove and reclean the underlying surface.)

1.4.9. Incomplete stripe coat

1.4.10. Overspray, spatter, runs, and sags

1.4.11. Defects in the top coat, including abrasives or dust

1.5. QUALIFICATIONS

1.5.1. Manufacturer: Company specializing in manufacturing the Products specified in this section with minimum three years documented experience.

1.5.2. Applicator: Company specializing in performing the work of this section with minimum three years experience.

1.6. ENVIRONMENTAL REQUIREMENTS

1.6.1. See attached environmental provisions/specifications for detailed environmental requirements.

1.7. HEALTH AND SAFETY

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1.7.1. Follow and enforce safety rules and requirements that are outlined in the Open

Market General Specifications, as well as those

1.7.1.1. Equipment. Use explosion-proof lighting and electrical equipment in cleaning and applying coatings. Use compressors with in-line dryers that are rated to match the compressor's rated capacity. Regularly test the compressor's discharge air to make sure it is oil-free.

1.7.1.2. Air Alert. Notify all personnel and the Government when work on painted surfaces may contaminate the air above the action level, including, but not limited to, the following: a. Rivet busting b. Power tool cleaning without a vacuum system c. Welding d. Cutting or torch burning e. Abrasive blasting f.

Clean-up activities, including containment structure movement.

1.7.1.3. Data Sheets. Conspicuously post Safety Data Sheets at the work site.

1.7.1.4. Overspray. Take all necessary measures to contain paint during painting operations. Take appropriate action to prevent overspray paint or coating damage to adjacent property. Take remedial action for all overspray.

1.7.1.5. Sampling and Testing. Conduct an acceptable abrasive blast test before startup.

1.7.1.6. Housekeeping. Maintain good housekeeping practices. Keep the work area, including the work platform, grass, and adjacent areas, clean and uncluttered.

Deposit all debris and rubbish in suitable containers at the end of each work day or as directed.

1.7.1.7. Final Clean Up. At the end of the project, clean all areas, including adjacent areas, and remove all debris. Ensure that the top coats on the complete stairwells are free from abrasives and dust generated from the project.

2. PRODUCTS

2.1. COMPONENT ORIGIN

2.1.1. Use only components that are the standard, regularly produced product of a single manufacturer and meet or exceed the requirements in this Section.

Paint systems must be the same generic type, be field applicable under the environmental constrictions of the site and structure, and have been used successfully in the field for at least 2 years on similar structures in a similar environment as this project.

2.2. PAINT

2.2.1. Coating system shall consist of the following:

2.2.1.1. Prime Coat: Epoxy polyamide, MIL-DTL-24441/19 (Formula 159, Type III)

2.2.1.2. Intermediate Coat: Epoxy polyamide, MIL-DTL-24441/31 (Formula 152, Type IV, White (Tinted))

2.2.1.3. Top Coat: Polyurethane coating topcoat of MIL-PRF-85285, Type II

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Each coat must be contrasting colors in order to determine 100% coverage was achieved. Top coat color shall match the surrounding accent color (current stairwell color).

2.3. ABRASIVES

2.3.1. Use an abrasive that is free of oil, moisture, and salts and will produce a minimum profile of 1.5 mils on the surface of the cleaned steel.

• Non-Steel Abrasives. Meet SSPC-AB1 (Abrasive Specification No. 1), Mineral and Slag abrasives. Do not use abrasives containing more than 1% “free” silica.

• Steel Abrasives. Recycle and reclean after each use. Must produce a profile approved by the coating's manufacturer.

3. EXECUTION

3.1. CONTAINMENT AND DISPOSAL

3.1.1. CONTAINMENT AND DISPOSAL. See attached environmental provisions for directions on disposing of materials.

Use filter fabric, drapes, or other appropriate methods to recover and contain loose paint and other debris generated during pressure washing.

Maintain liners, tarps, and drapes used to contain debris in good condition. If they are punctured, stop the work, repair the puncture, and capture the debris.

Stop abrasive blast cleaning and coating during high wind or precipitation, when containment is not in compliance, and when otherwise directed.

Provide all labor, equipment, and material for compliance with Specifications and regulations of RCRA, State, Federal, EPA, Local Laws, SSPC-Guide 6 (CON) Guide for Containing Debris Generated During Paint Removal Operations. Use SPC Guides when they do not conflict with these Specifications. These regulations apply to sampling, testing, storing, containing, treating on site, transporting and disposing of all hazardous and non-hazardous waste. Use containment procedures meeting the following subsections of SSPC-Guide 6 (CON):

5.3 CONTAINMENT STRUCTURES FOR ABRASIVE BLASTING

5.3.1 Air Impenetrable, Type B1

5.3.2 Support Structure, Type C1 (Rigid)

5.3.3 Joints, Type D1 (Full Seal)

5.3.4 Entryway, Type E3 (Overlapping)

5.4 VENTILATION SYSTEM COMPONENTS

5.4.1 Input Air Flow, Type G1 (Forced)

5.4.2 Air Pressure, Type H2 (Visual)

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5.4.3 Air Movement, Type I1 (Minimum Specified)

5.4.4 Exhaust Air Flow/Dust Collection, Type J1 (Air Filtration Required)

5.5 METHODS FOR ASSESSING QUANTITY OF EMISSIONS

5.5.1 Visible Emissions, General Surveillance, 200 feet from containment structure and Level 2 Emissions

5.6 METHOD OF ASSESSING EFFICIENCY OF DEBRIS COLLECTION AND BULK ABRASIVE

RECOVERY

5.6.1 Weight In/Weight Out Method Dispose of waste according to Sections 5, 6 and 7 of SSPC-Guide 7 (DIS).

3.2. SURFACE PREPARATION

3.2.1. Before beginning any other cleaning, pressure wash all surfaces scheduled for painting. Remove all dirt, grease, loose chalky paint, salts, or other foreign material.

Do not pressure wash surfaces more than 2 weeks before painting or cleaning. Use a pressure washer with at least 3000 psi at all elevations. Keep the nozzle tip no more than 12 inches from the surface during all phases of power washing.

Perform pressure washing with potable water. If needed, add a biodegradable detergent to the pressure washer feed water or apply it directly to the surface to be cleaned. Apply the detergent using methods that remove all surface contaminants.

Before abrasive blasting, grind smooth all metal defects, fins, slivers, burrs, weld spatter, and sharp edges resulting from shearing or similar operations, including flame-hardened edges resulting from cutting or burning. Grind flame-hardened edges a minimum of 1/16 inch. Document all weld defects and report them to the Government immediately.

Abrasive blast clean all metal to be coated to SSPC-SP10/NACE #2, Near-white Blast Cleaning. Remove all mill scale. Produce a surface profile neither detrimental to the coating performance nor contrary to the coating manufacturer's written instructions.

If coating manufacturer approves a lower SSPC-SP rating then contractor may use that rating instead of the SP10 stated above.

Repair all defects that become evident after abrasive blasting or applying a prime coat. Retexture the surface to match the blasted profile.

Clean all abrasive-blast-cleaned surfaces and staging surfaces by brushing, vacuum cleaning, or blowing with dry, oil-free compressed air. Do not wipe down surfaces with rags. Remove all loose blast material from the work area. Make sure all surfaces to be coated are free of contaminants and moisture.

Coat all abrasive blast cleaned surfaces in the same working shift. Reclean and

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To prevent contaminating cleaned or coated surfaces, do not pressure wash or abrasive blast clean in adjacent areas when also applying coatings or drying coated surfaces.

Prevent contaminating the cleaned surfaces with any oil, grease, soil, dust, foreign matter, salts, acids, alkali, or other corrosive chemicals before applying the prime coat and remaining coats. Remove any contamination from the surface before applying other coats.

3.3. WEATHER LIMITATIONS

3.3.1. Apply coatings within the environmental limitations recommended by the coating manufacturer. Do not apply coatings:

• where dust is generated;

• in fog, snow, or rain;

• on surfaces that are wet or damp; or

• when surface temperature is below 35 °F or above 120 °F.

When necessary, control the containment environment to comply with material specifications and meet the completion date.

3.4. PAINTING METAL SURFACES

3.4.1. Supply enough materials on the job site to satisfy all coat time windows and recoating requirements.

Do not open paint containers until ready to use. Keep partial containers sealed.

Do not use paints that have begun to polymerize, solidify, gel or deteriorate.

Remove and discard paint skin before mixing. Do not use paint if the volume of skin on the surface or sides of the container exceeds 2%.

Use the oldest paint or component first. Apply coating by spraying. Use daubers or sheepskins when no other application method is practical in places that are difficult to access. Use dipping, roller coating, or flow coating only when specifically authorized.

Apply stripe coating before applying each coat. Spot paint or stripe all edges, corner crevices, rivets, bolts, welds, and sharp edges before fully coating the steel. Make sure that striping extends at least 2 inches from the edge. Evenly distribute the stripe coat and work it well into joints, corners, and crevices. Use coating techniques that

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Apply paint to the following dry film thickness(DFT):

Prime Coat: 3 to 6 mils Intermediate Coat: 3 to 6 mils Top Coat: 2 to 4 mils

If necessary, apply several coats to achieve the proper thickness. Apply each coat as a continuous film of uniform thickness, free of pores. Make sure all coats are free of runs, sags, and dry spray. Repaint any thin spots or areas missed in the application.

Make sure each coat is properly cured or dried before applying the next coat.

If any applied coating is damaged, mud cracked, bubbling or blistering, permit it to dry first. Remove damaged areas of paint and prepare the surface again. Feather the edges of existing paint out to 1/2 inch surrounding the spot-cleaned area. Make sure no loose or abrupt edges of paint remain. Repaint the area with the same kind and number of coats as the undamaged area according to the manufacturer's written recommendations. Evenly blend the final spot coat of repair with the surrounding coating.

For final inspection, make sure the top coat is uniform and complete in coverage and appearance. The Government will visually inspect the top coat and determine acceptance by total DFT, which must be submitted prior to final inspection.

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