A05_ATTACHMENT_002_-_SPECIFICATIONS.pdf
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This is a specification section for painting and protective coatings work on the Blue Ridge Parkway project (PMIS No. 322906). The specification establishes comprehensive requirements for surface preparation, coating application, quality assurance, and field inspection of painting work on ferrous metals, galvanized metals, non-ferrous metals, and plastic surfaces.
The acceptable manufacturers are Tnemec, Ameron Protective Coatings Division, Carboline Protective Coatings, and Sherwin Williams. All materials must contain not more than 2.8 lbs/gallon VOC. The specification details ten active paint systems, each specifying primer and finish coat requirements with mil thickness and VOC content. System #1 uses Polyamidoamine Epoxy primers with either Epoxoline or Aliphatic Acrylic Polyurethane finish coats. Systems #2 through #5 and #10 provide variations for different substrate types and environmental conditions, including zinc-rich urethane primers and modified polyamidoamine epoxy coatings. Systems #11 and #19 are single-coat applications. Contractors must have minimum ten years' experience with similar products and provide references from three projects completed in the last five years. Surface preparation requirements vary by substrate type, including solvent cleaning per SSPC SP-1, abrasive blast cleaning per SSPC SP-6 or SP-10 standards, and hand-tool cleaning. Specific color selections are mandated for different piping systems and equipment, including smoke gray for steel tankage, black for certain decant lines, and brown for return activated solids piping. Field quality control includes daily record maintenance documenting temperature, humidity, wind conditions, and dry film thickness measurements using calibrated gages per SSPC PA-2 standards.
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Blue Ridge Parkway (PMIS No. 322906) 09905 - 1
PAINTING AND PROTECTIVE COATINGS
SECTION 09905
PART 1 - GENERAL
1.1 SUMMARY
A. Section Includes:
1. Painting and protective coatings.
2. Minimum surface preparation requirements.
1.2 QUALITY ASSURANCE
A. Referenced Standards:
1. American National Standards Institute (ANSI):
a. A250.10, Test Procedure and Acceptance Criteria For Prime Painted Steel Surfaces for Steel Doors.
b. Z535.1, Safety Color Code.
2. ASTM International (ASTM):
a. D4258, Practice for Surface Cleaning Concrete for Coating.
b. D4259, Practice for Abrading Concrete.
c. D4261, Practice for Surface Cleaning Concrete Unit Masonry for Coating.
d. D4262, Test Method for pH of Chemically Cleaned or Etched Concrete
Surfaces.
e. D4263, Test Method for Indicating Moisture in Concrete by the Plastic Sheet
Method.
f. E84, Test Method for Surface Burning Characteristics of Building Materials.
3. American Water Works Association (AWWA).
4. National Bureau of Standards (NBS):
a. Certified Coating Thickness Calibration Standards.
5. National Fire Protection Association (NFPA):
a. 101, Life Safety Code.
6. Steel Structures Painting Council (SSPC) Joint Surface Preparation Standard:
a. PA-2, Measurement of Dry Paint Thickness with Magnetic Gages.
b. SP-1, Solvent Cleaning.
c. SP-2, Hand Tool Cleaning.
d. SP-3, Power Tool Cleaning.
e. SP-5/NACE No. 1, White Metal Blast Cleaning.
f. SP-6/NACE No. 3, Commercial Blast Cleaning.
g. SP-7/NACE No. 4, Brush-off Blast Cleaning.
h. SP-10/NACE No. 2, Near-White Blast Cleaning.
i. SP-13/NACE No. 6, Surface Preparation of Concrete.
B. Qualifications:
1. Coating manufacturer's authorized representative shall provide written statement attesting that Applicator has been instructed on proper preparation, mixing and application procedures for coatings specified.
Blue Ridge Parkway (PMIS No. 322906) 09905 - 2
2. Contractor and applicators shall have minimum of 10 years experience in application of similar products on similar project. Provide references for minimum of three different projects completed in last 5 years with similar scope of work. Include name and address of project, size of project in value (painting) and contact person.
C. Miscellaneous:
1. Furnish paint through one manufacturer unless noted otherwise.
2. Coating used in all stairways shall meet requirements of NFPA 101 and ASTM E84.
D. Deviation from specified mil thickness or product type is not allowed without written authorization of Contracting Officer.
E. Material may not be thinned unless approved, in writing, by paint manufacturer's authorized representative.
1.3 DEFINITIONS
A. Installer or Applicator: Installer or applicator is the person actually installing or applying the product in the field at the Project site.
1. Installer or applicator are synonymous.
B. Approved Factory Finish: Finish on a product in compliance with the finish specified in the section where the product is specified or in Section 11005.
C. Corrosive Environment: Immersion in, or not more than 6 IN above, or subject to frequent condensation, spillage or splash of a corrosive material such as water, wastewater, or chemical solution; or chronic exposure to corrosive, caustic or acidic agent, chemicals, chemical fumes, chemical mixture, or solutions with pH range of 5 - 9.
D. Highly Corrosive Environment: Immersion in, or not more than 6 IN above, or subject to frequent condensation, spillage or splash of a corrosive material such as water, wastewater, or chemical solution; or chronic exposure to corrosive, caustic or acidic agent, chemicals, chemical fumes, chemical mixture, or solutions with pH range below 5 or above 9.
E. Exposed Exterior Surface: Surface which is exposed to weather but not necessarily exposed to view as well as surface exposed to view. Exterior surfaces are considered corrosive environment.
F. Finished Room or Space: One that has finish called for on Room Finish Schedule or is indicated, on Drawings, to be painted.
G. Paint includes fillers, primers, sealers, emulsions, oils, alkyds, latex, enamels, thinners, stains, epoxies, vinyls, chlorinated rubbers, urethanes, shellacs, varnishes, and any other applied coating specified within this Section.
H. Surface Hidden from View: Surfaces such as those within pipe chases, and between top side of ceilings (including drop-in tile ceilings) and underside of floor or roof structure above.
I. VOC: Volatile Organic Compounds.
1.4 SUBMITTALS
A. Shop Drawings:
1. See Section 01330.
2. Product technical data including:
Blue Ridge Parkway (PMIS No. 322906) 09905 - 3
a. Acknowledgement that products submitted meet requirements of standards referenced.
b. Manufacturer's application instructions.
c. Manufacturer's surface preparation instructions.
d. If products being used are manufactured by Company other than listed in Article
2.1, provide complete individual data sheet comparison of proposed products with specified products including application procedure, coverage rates and verification that product is designed for intended use and equivalent to the products specified herein.
e. Contractor's written plan of action for containing airborne particles created by blasting operation and location of disposal of spent contaminated blasting media.
f. Coating manufacturer's recommendation on abrasive blasting.
g. Manufacturer's recommendation for universal barrier coat.
3. Manufacturer's statement regarding Applicator instruction on product use.
4. Contractor and applicator experience qualifications.
a. No submittal information will be reviewed until Contracting Officer has received and approved Contractor and Applicator qualifications.
B. Samples:
1. Manufacturer's full line of colors for Contracting Officer’s color selection.
2. After initial color selection by Contracting Officer provide two 3 x 5 IN samples of each color selected.
C. Miscellaneous Submittals:
1. See Section 01330.
2. Approval of application equipment.
3. Applicator's daily record:
a. Submit daily record at end of each week in which painting work is performed.
1.5 DELIVERY, STORAGE, AND HANDLING
A. Deliver in original containers, labeled as follows:
1. Name or type number of material.
2. Manufacturer's name and item stock number.
3. Contents, by volume, of major constituents.
4. Warning labels.
5. VOC content.
PART 2 - PRODUCTS
2.1 ACCEPTABLE MANUFACTURERS
A. Subject to compliance with the Contract Documents, the following manufacturers are acceptable:
1. Tnemec.
2. Ameron Protective Coatings Div.
3. Carboline Protective Coatings.
4. Sherwin Williams.
2.2 MATERIALS
A. All materials used must contain not more than 2.8 LBS/GAL VOC.
Blue Ridge Parkway (PMIS No. 322906) 09905 - 4
B. For unspecified materials such as thinner, provide manufacturer's recommended products.
C. Paint Systems - General:
1. P=prime coat. F1, F2 . . . Fn = first finish coat, second finish coat............ nth finish coat, color as selected by Engineer.
2. If two finish coats of same material are required, Contractor may, at his option and by written approval from paint manufacturer, apply one coat equal to mil thickness of two coats specified.
D. Products specified are manufactured by Tnemec.
E. Paint Systems (Systems not shown are not used):
1. System #1 - Polyamidoamine Epoxy Primer with Polyamidoamine Epoxy or
Aliphatic Acrylic Polyurethane Enamel Finish Coat(s).
a. Prime coat:
1) P1=1 coat, 3 mils, Series N69 Epoxoline (Polyamidoamine Epoxy), VOC=2.11
b. Finish coat(s):
1) Interior:
a) F1=1coat, 3 mils, Series N69 Epoxoline (Polyamidoamine Epoxy)
b) F2=1 coat, 3 mils, Series N69 Epoxoline (Polyamidoamine Epoxy)
2) Exterior:
a) F1=1 coat, 3 mils, Series N69 Epoxoline (Polyamidoamine Epoxy)
b) F2=1 coat, 2.5 mils, Series 1074 Endura-Shield (Aliphatic Acrylic
Polyurethane Enamel), VOC=1.81
2. System #2 - Polyamidoamine Epoxy Primer with Polyamidoamine Epoxy or Aliphatic Acrylic Polyurethane Enamel Finish Coat(s).
a. Prime coat:
1) P1=1 coat, 5 mils, Series N69 Epoxoline (Polyamidoamine Epoxy), VOC=2.11
b. Finish coat(s):
1) Interior:
a) F1=1 coat, 5 mils, Series N69 Epoxoline (Polyamidoamine Epoxy), VOC=2.11
2) Exterior:
a) F1=1 coat, 5 mils, Series N69 Epoxoline (Polyamidoamine Epoxy)
b) F2=1 coat, 2.5 mils, Series 1074 Endura-Shield (Aliphatic Acrylic
Polyurethane Enamel), VOC=2.45
3. System #3 - Polyamidoamine Epoxy Primer with Polyamidoamine Epoxy or Aliphatic Acrylic Polyurethane Enamel Top Coat(s).
a. Prime coat:
1) P1=1 coat, 5 mils, Series N69 Epoxoline (Polyamidoamine Epoxy), VOC=2.11
b. Finish coat(s):
1) Interior:
a) F1=1 coat, 5 mils, Series N69 Epoxoline (Polyamidoamine Epoxy)
2) Exterior:
Blue Ridge Parkway (PMIS No. 322906) 09905 - 5
a) F1=1 coat, 2.5 mils, Series 1074 Endura-Shield (Aliphatic Acrylic Polyurethane Enamel), VOC=2.80
4. System #4 - Zinc-rich Urethane Primer with Polyamidoamine Epoxy or Aliphatic Acrylic Polyurethane Enamel Top Coat(s).
a. Prime coat:
1) P1=1 coat, 2.5 mils, Series 90-97 Tneme-Zinc (Zinc-Rich Urethane), VOC=2.67
b. Finish coat(s):
1) Interior:
a) F1=1 coat, 3 mils, Series N69 Epoxoline (Polyamidoamine Epoxy), VOC=2.11
2) Exterior:
Polyurethane Enamel), VOC=2.45
5. System #5 - Modified Polyamidoamine Epoxy Primer with Polyamidoamine Epoxy or Aliphatic Acrylic Polyurethane Enamel Top Coat(s).
a. Prime coat:
1) P1=1 coat, 2.0 mils, Series 135 Chembuild (Modified Polyamidoamine Epoxy), VOC=1.16
b. Finish coat(s):
1) Interior:
a) F1=1 coat, 2.5 mils, Series N69 Epoxoline (Polyamidoamine Epoxy), VOC=2.11
2) Exterior:
a) F1=1 coat, 2.0 mils, Series 1074 Endura-Shield (Aliphatic Acrylic
6. System #6 - NOT USED.
7. System #7 – NOT USED.
8. System #8 - NOT USED.
9. System #9 - NOT USED.
10. System #10 - Modified Polyamidoamine Epoxy Primer with Modified Polyamidoamine Epoxy and/or Aliphatic Acrylic Polyurethane Enamel Top Coat(s).
a. Prime coat:
1) P1=1 coat, 3 mils, Series 135 Chembuild (Modified Polyamidoamine Epoxy), VOC=1.90
b. Finish coat(s):
1) Interior:
a) F1=1 coat, 3 mils, Series 135 Chembuild (Modified Polyamidoamine Epoxy), VOC=1.90
2) Exterior:
Blue Ridge Parkway (PMIS No. 322906) 09905 - 6
11. System #11 - Zinc-Rich Aromatic Urethane Primer.
a. Prime coat:
1) P1=1 coat, 3.0 mils, 90-97 Tneme-Zinc (Zinc-Rich Urethane), VOC=2.67
12. System #12 - NOT USED.
13. System #13 – NOT USED.
14. System #14 – NOT USED
15. System #15 – NOT USED.
16. System #16 – NOT USED.
17. System #17 – NOT USED.
18. System #18 - NOT USED.
19. System #19 - Polyamidoamine Epoxy Coating.
a. Prime coat:
1) P1=1 coat, 5 mils, Series N69 Epoxoline (Polyamidoamine Epoxy), VOC=2.11
20. System #20 - NOT USED.
21. System #21 - NOT USED.
22. System #22 - NOT USED.
23. System #23 - NOT USED.
24. System #24 – NOT USED.
25. System #25 - NOT USED.
26. System #26 – NOT USED.
27. System #27 – NOT USED.
28. System #28 - NOT USED.
29. System #29 - NOT USED.
30. System #30 - NOT USED.
31. System #31 - NOT USED.
32. System #32 - NOT USED.
Blue Ridge Parkway (PMIS No. 322906) 09905 - 7
PART 3 - EXECUTION
3.1 ITEMS TO BE PAINTED
A. Exposed Exterior Surfaces including:
1. Cast-in-place concrete where noted on the Drawings.
2. Piping, valves, fittings, (except when covered by pipe jacketing) and ferrous supports not made from weathering steel.
3. Conduit, device boxes, junction boxes and covers, pull boxes and covers when attached to a surface required to be painted.
4. Steel pipe bollards.
5. Miscellaneous ferrous metal surfaces (unless weathering steel).
6. Structural steel (unless weathering steel).
7. Galvanized metal surfaces.
B. Surfaces in Interior Areas Not Considered Finished:
1. Paint following surfaces in areas not considered as finished area:
a. Piping, valves, fittings, (except when covered by pipe jacketing).
b. Conduit, device boxes, junction boxes and covers, and pull boxes and covers.
c. Structural steel.
d. Miscellaneous ferrous metal surfaces.
e. Concrete surfaces where indicated.
C. New and Existing Equipment:
1. Paint new and existing equipment, except:
a. Where noted in Article 3.2.
b. Where specified elsewhere in the Contract Documents.
3.2 ITEMS NOT TO BE PAINTED
A. General: Do not paint items listed in Article 3.2 unless specifically noted in the Contract Documents to be painted.
B. Items with Approved Factory Finish.
C. Electrical Equipment:
1. Do not field paint certain items of electrical equipment as listed in Section 11005 except where painting is specifically stated elsewhere in these Contract Documents, or where the equipment is subject to a corrosive environment. The list of equipment includes specific types of equipment with Approved Factory Finishes.
D. Surfaces Hidden from View except when in a corrosive or highly corrosive area, including:
1. Concrete.
2. Galvanized metal surfaces.
E. Other Items:
1. Stainless steel surfaces except:
a. Piping to be color coded.
b. Banding as required to identify piping.
2. Aluminum surfaces except:
a. Where specifically shown in the Contract Documents.
b. Where in contact with concrete.
Blue Ridge Parkway (PMIS No. 322906) 09905 - 8
c. Where in contact with dissimilar metals.
3. Interior of pipe, ductwork, and conduits.
4. Exterior concrete surfaces except as required for finishing, sealing, or when indicated to be painted.
5. Pipe jacketing.
6. Contact surfaces of friction-type connections.
7. Galvanized steel items unless appurtenant to be a painted surface.
3.3 SCHEDULE OF ITEMS TO BE PAINTED AND PAINTING SYSTEMS
A. Ferrous metals subject to corrosive or highly corrosive environment: SYSTEM #2.
1. Includes ferrous metal components of sluice gates, slide gates, and similar items.
B. Galvanized Metals:
1. Field touch-up where top coat is required: SYSTEM #4.
a. Prime paint only the damaged area.
2. Assembled galvanized steel items: SYSTEM #3.
3. Field touch-up of galvanized surfaces not requiring a finish top coat: SYSTEM #11.
a. Paint only damaged areas.
C. Steel equipment: SYSTEM #5.
D. Non-ferrous metals (except galvanized): SYSTEM #3.
1. Includes copper, brass, and aluminum specifically indicated on the Drawings to be painted.
E. Plastic Surfaces:
1. PVC, FRP, and CPVC surfaces: SYSTEM #3.
F. Electrical Conduit:
1. Galvanized: SYSTEM #3.
G. Pipe, Valves, and Fittings:
1. Steel, cast-iron, and uncoated ductile iron: SYSTEM #1.
2. Stainless: SYSTEM #1.
3. Brass and bronze: SYSTEM #3.
4. PVC, FRP, and CPVC: SYSTEM #3.
H. Bituminous coated ductile iron pipe and material: SYSTEM #10.
I. Aluminum buried in concrete and between dissimilar metals which are not below liquid level: SYSTEM #19.
3.4 PREPARATION
A. General:
1. Prepare surfaces to be painted in accordance with coating manufacturer's instructions and this Section unless noted otherwise in the Specification.
2. Remove all dust, grease, oil, compounds, dirt and other foreign matter which would prevent bonding of coating to surface.
B. Protection:
1. Protect surrounding surfaces not to be coated.
2. Remove and protect hardware, accessories, plates, fixtures, finished work, and similar items; or provide ample in-place protection.
Blue Ridge Parkway (PMIS No. 322906) 09905 - 9
C. Prepare and Paint Before Assembly: Where component is subject to corrosive or highly corrosive environment, prepare and paint, before assembly, all surfaces which may be subject to environment which are inaccessible after assembly.
D. Ferrous Metal:
1. Prepare ductile iron pipe in accordance with pipe manufacturer's recommendations and AWWA.
2. Complete fabrication, welding or burning before beginning surface preparation.
a. Chip or grind off flux, spatter, slag or other laminations left from welding.
b. Remove mill scale.
c. Grind smooth rough welds and other sharp projections.
3. Solvent clean in accordance with SSPC SP-1 all surfaces scheduled to receive additional SSPC surface preparation.
4. Surfaces subject to corrosive or highly corrosive environment and all surfaces subject to immersion service:
a. Near-white blast clean in accordance with SSPC SP-10/NACE No. 2.
5. All interior and exterior surfaces:
a. Minimum commercial blast clean in accordance with SSPC SP-6/NACE No. 3.
E. Hollow Metal:
1. Solvent clean in accordance with SSPC SP-1.
F. Galvanized Metal:
1. Solvent clean in accordance with SSPC SP-1 followed by abrasive brush blast in accordance with SSPC SP-7/NACE No. 4 to provide 1 mil profile.
G. Abrasive blast clean the following equipment or surfaces regardless of previous finish, if any.
1. Bituminous coated ductile iron pipe where exposed.
H. Preparation by Abrasive Blasting:
1. All abrasive-blasted ferrous metal surfaces shall be inspected immediately prior to application of paint coatings.
a. Inspection shall be performed to determine cleanliness and profile depth of blasted surfaces and to certify that surface has been prepared in accordance with these Specifications.
2. Schedule the abrasive blasting operation so blasted surfaces will not be wet after blasting and before painting.
3. Perform additional blasting and cleaning as required to achieve surface preparation required. Prior to painting, reblast surfaces allowed to set overnight and surfaces that show rust bloom.
a. Surfaces allowed to set overnight or surfaces which show rust bloom prior to painting shall be reinspected prior to paint application.
4. Profile depth of blasted surface: Not less than 1 mil or greater than 2 mils unless required otherwise by coating manufacturer.
5. Provide compressed air for blasting that is free of water and oil. Provide accessible separators and traps.
6. Confine blast abrasives to area being blasted.
a. Provide shields of polyethylene sheeting or other such barriers to confine blast material.
b. Plug pipes, holes, or openings before blasting and keep plugged until blast operation is complete and residue is removed.
Blue Ridge Parkway (PMIS No. 322906) 09905 - 10
7. Protect nameplates, valve stems, rotating equipment, motors and other items that may be damaged from blasting.
8. Reblast surfaces not meeting requirements of these Specifications.
9. Abrasive blasting media may be recovered, cleaned and reused providing Contractor submits, for Contracting Officer’s review, a comprehensive recovery plan outlining all procedures and equipment proposed in reclamation process.
10. Properly dispose of blasting material contaminated with debris from blasting operation not scheduled to be reused.
I. All Plastic Surfaces and Non-Ferrous Surfaces Except Galvanized Steel:
1. Sand using 80-100 grit sandpaper to scarify surfaces.
3.5 APPLICATION
A. General:
1. Thin, mix and apply coatings by brush, roller, or spray in accordance with manufacturer's installation instructions.
a. Application equipment must be inspected and approved in writing by coating manufacturer.
2. Temperature and weather conditions:
a. Do not paint surfaces when surface temperature is below 50 DegF unless product has been formulated specifically for low temperature application or approved in writing by Contracting Officer and paint manufacturer's authorized representative.
b. Avoid painting surfaces exposed to hot sun.
c. Do not paint on damp surfaces.
3. Immediately after surface has been inspected, apply structural steel and miscellaneous steel prime coat in the factory.
a. Finish coats shall be applied in the field.
b. Prime coat referred to here is prime coat as indicated in this Specification.
Structural steel and miscellaneous steel prime coating applied in factory (shop) as part of Fabricator's standard rust inhibiting and protection coating is not acceptable as replacement for specified prime coating.
4. Provide complete coverage to mil thickness specified.
a. Thickness specified is dry mil thickness.
b. All paint systems are "to cover." In situations of discrepancy between manufacturer's square footage coverage rates and mil thickness, mil thickness requirements govern.
c. When color or undercoats show through, apply additional coats until paint film is of uniform finish and color.
5. If so directed by Contracting Officer, do not apply consecutive coats until Engineer has had an opportunity to observe and approve previous coats.
6. Apply materials under adequate illumination.
7. Evenly spread to provide full, smooth coverage.
8. Work each application of material into corners, crevices, joints, and other difficult to work areas.
9. Avoid degradation and contamination of blasted surfaces and avoid intercoat contamination.
a. Clean contaminated surfaces before applying next coat.
10. Smooth out runs or sags immediately, or remove and recoat entire surface.
11. Allow preceding coats to dry before recoating.
Blue Ridge Parkway (PMIS No. 322906) 09905 - 11
a. Recoat within time limits specified by coating manufacturer.
b. If recoat time limits have expired reprepare surface in accordance with coating manufacturer's printed recommendations.
12. Allow coated surfaces to cure prior to allowing traffic or other work to proceed.
13. Coat all aluminum in contact with dissimilar materials.
14. When coating rough surfaces which cannot be backrolled sufficiently, hand brush coating to work into all recesses.
15. When applying coatings over acoustical concrete block units, do not spray apply.
Apply by roller.
16. Backroll concrete surfaces with a roller if paint coatings are spray applied.
B. Prime Coat Application:
1. Prime all surfaces indicated to be painted. Apply prime coat in accordance with coating manufacturer's written instructions and as written in this Section.
2. Ensure field-applied coatings are compatible with factory-applied coatings. Ensure new coatings applied over existing coatings are compatible.
a. Employ services of coating manufacturer's qualified technical representative.
1) Certify through material data sheets.
2) Perform test patch.
b. If field-applied coating is found to be not compatible, require the coating manufacturer's technical representative to recommend, in writing, product to be used as tie-coat, thickness to be applied, surface preparation and method of application.
c. At Contractor's option, coatings may be removed, surface reprepared, and new coating applied using appropriate paint system listed in paragraph 2.2 E.
1) All damage to surface as result of coating removal shall be repaired to original condition or better by Contractor at no additional cost to Government.
3. Prime ferrous metals embedded in concrete to minimum of 1 IN below exposed surfaces.
4. Apply zinc-rich primers while under continuous agitation.
5. Ensure abrasive blasting operation does not result in embedment of abrasive particles in paint film.
6. Brush or spray bolts, welds, edges and difficult access areas with primer prior to primer application over entire surface.
7. Touch up damaged primer coats prior to applying finish coats. Restore primed surface equal to surface before damage.
C. Finish Coat Application:
1. Apply finish coats in accordance with coating manufacturer's written instructions and in accordance with this Section.
2. Touch up damaged finish coats using same application method and same material specified for finish coat. Prepare damaged area in accordance with Article 3.4.
3.6 COLOR SELECTION
A. All steel process tankage: Smoke gray.
B. Blowers and weather sound attenuation enclosures: Smoke gray.
C. Process piping:
1. Exposed air low pressure: Aluminum
2. Equalization Basin Effluent Piping: Gray.
Blue Ridge Parkway (PMIS No. 322906) 09905 - 12
3. Clarifier Piping (influent and effluent): Gray.
4. Return Activated Solids Piping: Brown.
5. Filter backwash return and solids holding tank decant lines: Black.
6. UV Disinfection (influent and effluent): Gray.
D. Color Shade Code Schedule:
Color Shade US Government Federal Register 595 Pain Color
Number
Aluminum 17178
Black 17038
Blue 15050
Brown 10091
Gray 16473
Green, Dark 14062
Green, Light 14533
Orange 12246
Red 11105
White 17875
Yellow 13655
3.7 FIELD QUALITY CONTROL
A. Maintain daily record:
1. Provide the following information for each coat of paint applied:
a. Date, starting time, end time, and all breaks taken by painters.
b. Sky condition.
c. Air temperature.
d. Relative humidity.
e. Wind speed and direction.
f. Moisture content of substrate prior to each coat.
g. Provisions utilized to maintain work area within manufacturer's recommended application parameters.
h. Surface temperature of substrate to which paint is being applied.
B. Measure wet coating with wet film thickness gages.
C. Measure coating dry film thickness in accordance with SSPC PA-2 using Mikrotest gage calibrated against National Bureau of Standards "Certified Coating Thickness Calibration Standards."
1. Contracting Officer may measure coating thickness at any time during project to assure conformance with Specifications.
D. Measure surface temperature of items to be painted with surface temperature gage specifically designed for such.
E. Measure substrate humidity with humidity gage specifically designed for such.
Blue Ridge Parkway (PMIS No. 322906) 09905 - 13
F. Provide wet paint signs.
G. Where a wall or ceiling is disturbed and patched, repaint entire wall or ceiling.
3.8 CLEANING
A. Clean paint spattered surfaces. Use care not to damage finished surfaces.
B. Upon completion of painting, replace hardware, accessories, plates, fixtures, and similar items.
C. Remove surplus materials, scaffolding, and debris. Leave areas broom clean.
END OF SECTION
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