24R0010_TechSpec_Amend-0004.pdf

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Attached to
Lower Snake River Navigation Lock Tainter Valve System Upgrades Federal contract opportunity
Solicitation number
W912EF24R0010
Issued by
Department of the Army Corps of Engineers Engineering District Walla Walla

About this file

This document is a technical specification for the Lower Snake River Navigation Lock Tainter Valve System Upgrades project. The work involves replacing four culvert tainter valves and associated mechanical equipment, including hydraulic cylinders and power units, at the Ice Harbor, Lower Monumental, Little Goose, and Lower Granite navigation locks in Washington. The project has an estimated construction value between $10-25 million. Key requirements include:

  • Replacing the tainter valve trunnions, sealing surfaces, lifting eyes, linkage assemblies, hydraulic cylinders, and hydraulic power units at each site.
  • Providing electrical system upgrades and commissioning services to test the entire tainter valve system.
  • The contractor or subcontractor responsible for fabrication must be certified under the AISC quality certification program.
  • The contractor must establish and manage effective on-site safety, quality control, and project management programs.
  • The government will provide the Construction Contractor Module of the Resident Management System software for contract administration.

The document provides detailed design parameters, material requirements, testing and inspection procedures, and installation instructions for the hydraulic power systems and related components.

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24R0010 Amendment 0007.pdf PDF
24R0010_35 20 16.46 28_Amend-0007.pdf PDF
24R0010_Plans_V4_Amend006.pdf PDF
24R0010_05 50 03.00 28_Amend-0006.pdf PDF
24R0010_Plans_V3_Amend006.pdf PDF
24R0010_Plans_V2_Amend006.pdf PDF
24R0010 Solicitation Amendment 0006.pdf PDF
24R0010_Plans_V1_Amend006.pdf PDF
24R0010_Plans_V1_Amend005.pdf PDF
24R0010_Plans_V3_Amend005.pdf PDF
24R0010_35 05 40.14 28_Amend-0005.pdf PDF
24R0010_Plans_V4_Amend005.pdf PDF
24R0010 Amendment 0005.pdf PDF
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24R0010_Plans_V4_Amend004.pdf PDF
24R0010_Plans_V2_Amend004.pdf PDF
24R0010_Plans_V3_Amend004.pdf PDF
W912EF24R0010 Amendment 0004.pdf PDF
24R0010_Plans_V1_Amend004.pdf PDF
W912EF24R0010_TechSpec_Amend-0003_v2.pdf PDF
W912EF24R0010 Amend-0003.pdf PDF
W912EF24R0010_SUBMITTAL REGISTER_Amend-0003.pdf PDF
W912EF24R0010 Amendment 00002.pdf PDF
24R0010_Plans_V3_Amendment002.pdf PDF
24R0010_Plans_V4_Amendment002.pdf PDF
24R0010_TechSpecs_Amend-0002.pdf PDF
24R0010_Plans_V1_Amendment002.pdf PDF
24R0010_Plans_V2_Amendment002.pdf PDF
W912EF24R0010_TechSpec_Amend-0001.pdf PDF
W912EF24R0010_SUBMITTAL REGISTER_Amend-0001.pdf PDF
W912EF24R0010 Amend 0001.pdf PDF
Copy of W912EF24R0010 Contractor Attendance List.xlsx XLSX spreadsheet
W912EF24R0010 OFFEROR EXPERIENCE FORM.pdf PDF
24R0010v1_SupplementalDrawings_LMA.pdf PDF
24R0010v3_SupplementalDrawings_LLA.pdf PDF
H.08.04 TechSpec_24R0010_LSR NL Tainter Vlvs.pdf PDF
H.08.01 24R0010_Plans_V1.pdf PDF
24R0010v2_SupplementalDrawings_LGA.pdf PDF
H.08.01 24R0010_Plans_V3.pdf PDF
H.08.01 24R0010_Plans_V2.pdf PDF
Attachment A PAST PERFORMANCE EVALUATION QUESTIONNAIRE FORM.pdf PDF
B.08.02 W912EF24R0010 LSR NL Tainter Valves Sys. Ugrades Solicitation.pdf PDF
24R0010v4_SupplementalDrawings_HLD.pdf PDF
H.08.01 24R0010_Plans_V4.pdf PDF
LSR-NavLock-Tainter Valves_JA Cisco (revised)_Signed 24R0010-1.pdf PDF
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LSR Navigation Lock Tainter Valve System Upgrades W912EF24R0010 LSRNLTAINTERVLVS Amend-0004

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 14 00.10 28

PROJECT SITE RESTRICTIONS

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 SITE CONDITIONS AND OPERATIONAL RESTRICTIONS

1.3.1 Contractor Work on Tainter Valves

1.3.2 Tainter Valves Subject to Engulfment

1.3.3 Number and Schedule of Lockages

1.4 PROJECT SECURITY

1.4.1 Contractor Vehicle Access

1.4.2 Identification of Employees

1.4.3 Project Security Notification Pagers - Lower Granite Only

1.4.4 Non-US Citizens

1.5 EMPLOYEE TRAINING AND IDENTIFICATION SUMMARY

1.6 DELIVERY OF EQUIPMENT

1.7 ACCESS TO AUTOMATED INFORMATION SYSTEMS

1.8 FACILITY OCCUPANCY CLOSURE

1.9 WORK SCHEDULES

1.9.1 Contractor's Work Schedule

1.9.2 Government's Work Schedule

1.10 USE OF WALLA WALLA DISTRICT PARKS

PART 2 PRODUCTS (Not Used)

PART 3 EXECUTION (Not Used)

ATTACHMENTS:

Request for Access to Field Projects Form

-- End of Section Table of Contents --

SECTION 01 14 00.10 28

G4EDHCMP

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SECTION 01 14 00.10 28

SECTION 01 14 00.10 28

PROJECT SITE RESTRICTIONS

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only.

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1 Safety and Occupational Health Requirements

Contractor shall be responsible for complying with the current edition and all changes posted on the web as of the effective date of this solicitation.

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals having an "I" designation are for information only. A designation following the "G" or "I" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with SECTION 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Foreign Visit Request (FVR) Form ; G, SLE

Valve Specific Outage Schedule - LMA ; G, C

Valve Specific Outage Schedule - LGA ; G, C

Valve Specific Outage Schedule - LLA ; G, C

Valve Specific Outage Schedule - HLD ; G, C

Access To Automated Information Systems-LMA ; G, SLE

Access To Automated Information Systems-LGA ; G, SLE

Access To Automated Information Systems-LLA ; G, SLE

Access To Automated Information Systems-HLD ; G, SLE

Employee Training And Identification Summary - LMA ; I, C

Employee Training And Identification Summary - LGA ; I, C

Employee Training And Identification Summary - LLA ; I, C

Employee Training And Identification Summary - HLD ; I, C

1.3 SITE CONDITIONS AND OPERATIONAL RESTRICTIONS

1.3.1 Contractor Work on Tainter Valves

Following are general requirements and restrictions for work on Navigation Lock Tainter Valves. Additional related information can be found in Contracting Clause 52.211-10 COMMENCEMENT, PROSECUTION, AND COMPLETION OF

WORK; SECTION 01 55 10.00 28 CONTRACTOR WORK, ACCESS AND STORAGE AREAS;

SECTION 01 57 30.00 28 DEWATERING OF WORK AREAS; as well as other areas of these specification.

a. Prior to the Government removing a Navigation Lock culvert from service for tainter valve replacement activities, all parts, components, and controls required to put both culvert Tainter Valves (one fill valve and one drain valve) back in service, must be on-site and accepted for installation by the Contracting Officer.

b. The Government will determine the order of valve replacement at each Project Site. Coordinate valve replacement order with the Contracting Officer.

c. Tainter Valves will be removed from service in pairs: one fill valve and one drain valve on the same culvert, for all Contractor access to Tainter Valve areas. A maximum of two Tainter Valves at a Project Site will be removed from service at a time for work on this contract.

d. Coordinate access to Tainter Valves, with the Contracting Officer, a minimum of 14 calendar days prior to anticipated Contractor access date.

e. Provide and place guardrails meeting requirements of EM 385-1-1 around Tainter Valve shaft deck openings at all times shaft cover is removed.

f. To prevent liquids from entering Tainter Valve shaft deck openings, provide and place berming around shaft openings at all times personnel are in the Tainter Valve area. Berming shall be a minimum 1 foot high and shall be sealed to the deck and watertight

g. Halt all Hot Work when vessels transporting flammable liquids are in the Navigation Lock chamber.

h. Provide continuous, redundant air monitoring in the valve shaft and culvert when occupied by personnel.

1.3.2 Tainter Valves Subject to Engulfment

a. Work on Tainter Valves subject to engulfment during Navigation Lockages have additional requirements and restrictions. See Contracting Clause 52.211-10 COMMENCEMENT, PROSECUTION, AND COMPLETION OF WORK for a list of these valves.

b. All personnel must exit Tainter Valve pits during Navigation Lockages when working on these valves. See paragraph "Number and Schedule of Lockages" for anticipated number of lockages.

c. Coordinated 10 hour Navigation Lock outages are available Monday through Friday, 0700 to 1700, and are available only for valves subject to engulfment during lockages. Additional lock outage hours will not be available outside of Navigation Lock Outages identified in Contracting Clause 52.211-10 COMMENCEMENT, PROSECUTION, AND COMPLETION

OF WORK.

d. Contractor must support cruise boat lockages at all Project sites during 10 hour Navigation Lock outages. The Government will provide a listing of scheduled cruise boat lockages, upon Contractor request, within 90 calendar days prior to start of work at each Project site.

During coordinated 10 hour outages, anticipate an average of 2 cruise boat lockages per week between 1 April and 15 December each year. See paragraph "Number and Schedule of Lockages" for anticipated number of cruise boat lockages.

e. To coordinate 10 hour outages, submit valve specific outage schedules. Schedules must be submitted a minimum of 45 calendar days prior to starting work on each valve. A separate schedule and coordination effort is required for each Project Site. Any changes to the coordinated schedules will only be allowed with Contracting Officer approval. Submit the following:

1. Valve Specific Outage Schedule - LMA

2. Valve Specific Outage Schedule - LGA

3. Valve Specific Outage Schedule - LLA

4. Valve Specific Outage Schedule - HLD

1.3.3 Number and Schedule of Lockages

a. From September 16 through May 14, anticipate an average of one (1) to two (2) lockages per day, at most Project sites. Ice Harbor averages two (2) to three (3) lockages per day during this time.

Lockages will take approximately one (1) hour. a. Anticipate the following average number of lockages over a 24 hour period:

1) 1 May through 30 September :

a. Ice Harbor: 4 per day.

b. Lower Monumental: 3 per day.

c. Little Goose: 3 per day.

d. Lower Granite: 2 per day.

2) 1 October through 30 April :

a. Ice Harbor: 3 per day.

b. Lower Monumental: 2 per day.

c. Little Goose: 2 per day.

d. Lower Granite: 1-2 per day.

b. Anticipate the following during Coordinated 10 hour Navigation Lock outages. See paragraph "Tainter Valves Subject to Engulfment" for additional information:

1) No river traffic during daily coordinated 10 hour outages with the exception of cruise boat lockages below.

2) Anticipate an average of 2 cruise boat lockages per week between 1 April and 15 November.

SECTION 01 14 00.10 28

G4EDHCMP

Line

3) Anticipate lockage numbers in a.1) and a.2) above outside of daily Coordinated 10 hour outage periods.

c. Actual lockage times will vary between Project sites. Assume average lockage length across all Project sites, with one fill valve and one drain valve operational, will take approximately 1.5 hours per lockage.

b. From May 15 through September 15, additional lockages are scheduled for recreational vessels. This is typically limited to an additional five (5) lockages per day, as needed.

1.4 PROJECT SECURITY

The Project sites are secured areas and access onto the Projects is restricted. The security measures affect all of the Contractor's vehicles and personnel. There will be delays when entering Projects due to locked gates, vehicle inspections, and personnel checks. Inspections and checks may include inspection of tool boxes, brief cases, lunch boxes, and other containers.

1.4.1 Contractor Vehicle Access

Project access roads on both sides of the dams are secured with locked gates. All vehicles that pass through the locked gates will be subject to being searched. No privately owned vehicles (POV's) will be allowed through locked gates. Only Contractor's work vehicles and equipment that are essential to the conduct of the work will be allowed in the work areas. All Contractor vehicles shall display suitable permanent or temporary identification.

1.4.2 Identification of Employees

Government Project personnel will provide the Contractor's personnel with identification badges as they arrive on site. The Contractor shall be responsible for furnishing the Request for Access to Field Projects Form (attached to the end of this SECTION) and initial identification (driver's license) for each employee five (5) business days prior to the employee arriving to work on the Project site, and upon issuance of official badges, for requiring each employee engaged on the work to display identification at all times. Ensure each employee's full name with middle initial is included with the initial identification. All prescribed identification shall immediately be delivered to the Quality Assurance Representative for cancellation upon the release of the employee or project completion. If required by the Contracting Officer, employees will be photographed by the Government. Employees who fail to submit to being photographed will not be allowed on the project site.

Every Contractor employee (prime or subcontractor) shall have a hard hat meeting the requirements of EM 385-1-1 . Hardhats shall display the Prime Contractor name, subcontractor name, and the employee's name. Contractor employee hardhats shall not be white with red markings. It shall be the responsibility of the Project Superintendent to enforce this requirement.

1.4.3 Project Security Notification Pagers - Lower Granite Only

The Government (Project personnel) will issue the Contractor's SSHO and/or Project Superintendent with pagers to be carried at all times while on-site to receive Project Security Notifications. All pagers shall immediately be delivered to the Quality Assurance Representative upon the

SECTION 01 14 00.10 28

release of the employee or project completion.

1.4.4 Non-US Citizens

a. Non-US citizen access to each Project site, requires submittal and approval of a Foreign Visit Request (FVR) form , available from the KO. FVR forms will be reviewed by the USACE Walla Walla District Security Office, and must be submitted according to the following requirements:

1. Chinese Nationals, a minimum of 95 calendar days prior to anticipated access date.

2. All other nationalities, a minimum of 35 calendar days prior to anticipated access date.

3. Include a copy of the employee's passport with the FVR form submittal.

4. Submit each FVR Form separately. Do NOT submit multiple forms in the same submittal.

b. Individuals with a Permanent Resident Card do NOT need to submit a FVR Form. Submit a current copy of the Permanent Resident Card.

c. Individuals in the United States on a work VISA must submit a FVR Form along with a current copy of the work VISA.

d. Access in less than the required number of days requires an approved waiver and is not guaranteed. Contact the KO for additional information.

1.5 EMPLOYEE TRAINING AND IDENTIFICATION SUMMARY

a. Provide a spreadsheet containing the following information for all Contractor and Subcontractor personnel working on each Project site:

1. Employee name.

2. Employee photo ID Type Issued: Proximity Card #*** (for Gate/Door Access) OR Photo ID Only.

3. Date Photo ID Issued.

4. Date Photo ID Returned.

5. All applicable employee training that has been completed.

Include all training from Section 01 35 29.10 28 GOVERNMENTAL

SAFETY REQUIREMENTS, 01 14 00.90 28 INTEGRATING ANTITERRORISM (AT)

AND OPERATIONS SECURITY (OPSEC), and other as specified.

b. Submit an EMPLOYEE TRAINING AND IDENTIFICATION SUMMARY, specific to each Project Site, prior to beginning of Contractor on-site work.

Update and resubmit within 48 hours of any changes.

1. Employee Training and Identification Summary - LMA

2. Employee Training and Identification Summary - LGA

3. Employee Training and Identification Summary - LLA

4. Employee Training and Identification Summary - HLD

1.6 DELIVERY OF EQUIPMENT

Contractor shall be responsible for delivery and receipt of all materials and equipment. Government personnel will not be available to assist the Contractor in these activities. To the maximum extent possible, deliveries shall arrive on the same side of the river as the Contractor's work area. Delivery vehicles will be allowed to cross the river over the dam only with Government approval. Delivery vehicles arriving on the opposite side of the river as the work area shall be unloaded outside the locked gate, equipment shall be loaded onto Contractor's vehicles, and Contractor's vehicles will then be allowed to cross the dam to the work area.

1.7 ACCESS TO AUTOMATED INFORMATION SYSTEMS

a. All Contractor employees (U.S. citizens and Non- U.S. citizens) working under this contract (to include grants, cooperative agreements and task orders) who require access to Automated Information Systems (AIS), (stand alone computers, network computers/systems, e-mail, sensitive data areas such as the Control Room) shall, at a minimum, be designated into an ADP-III position (non-sensitive) in accordance with DoD 5220-22-R, Industrial Security Regulation. The investigative requirements for an ADP-III position are a favorable National Agency Check (NAC), SF-85P, Public Trust Position.

b. Each applicable employee must complete a SF-85P and 2 FBI form 258 Finger Print cards to submit to the Security Officer within three (3) working days after award of any contract or task order. All required documentation, must be submitted and approved prior to the individual being permitted access to an AIS. Contractors that have a commercial or government entity (CAGE) Code and Facility Security Clearance through the Defense Security Service shall process the NACs and forward visit requests/results of NAC to the Security Officer. For those Contractors that do not have a CAGE Code or Facility Security Clearance, the Security Office will process the investigation in coordination with the Contractor and contract employees.

The phone number for the Security Office is: 509.527.7141

The address for the Security Office is:

Security Officer Emergency Management Office Walla Walla District, COE 201 North Third Avenue Walla Walla, WA 99362

c. Submit the following:

Access To Automated Information Systems-LMA

Access To Automated Information Systems-LGA

Access To Automated Information Systems-LLA

Access To Automated Information Systems-HLD

1.8 FACILITY OCCUPANCY CLOSURE

Streets, walks, and other facilities occupied and used by the Government shall not be closed or obstructed without written permission from the Contracting Officer.

1.9 WORK SCHEDULES

1.9.1 Contractor's Work Schedule

At the Pre-Work Meeting, furnish a schedule of number of working days per week, shifts per day, and hours per shift for contract work. Furnish notification of any change of schedule of regular work hours, overtime work hours, and shifts of work crews and personnel at the site. This notification shall be provided a minimum of 48 hours prior to any schedule change to allow suitable scheduling of Government personnel and inspection. Exception to this requirement may be allowed in case of schedule change due to emergency conditions.

1.9.2 Government's Work Schedule

a. The maintenance crews at the dam work from 6:30 a.m. to 5:00 p.m., Monday through Thursday. Crews and staff do not work on weekends and Federal holidays. If a Federal holiday falls on a Friday, the crews and staff do not work on the preceding Thursday. A powerhouse operator is at the site 24 hours a day, 7 days a week, including Federal holidays but is not available to assist the Contractor.

b. If the Contractor requires Government support or assistance outside of normal work hours, the Contractor must make a formal written request to the Contracting Officer at least one week prior to the date that support/assistance is needed. The Government will review this request, but there is no guarantee that Government support or assistance can be provided.

1.10 USE OF WALLA WALLA DISTRICT PARKS

Special consideration for the use of the Walla Walla District Camping Grounds will not be given to the Contractor if camping at these sites.

The Contractor's crew may not use Government parking lots near any of the Project sites for RV parking.

PART 2 PRODUCTS (Not Used)

PART 3 EXECUTION (Not Used) -- End of Section --

THIS PAGE INTENTIONALLY LEFT BLANK

SECTION TABLE OF CONTENTS

DIVISION 09 - FINISHES

SECTION 09 97 02.00 28

PAINTING: HYDRAULIC STRUCTURES

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 QUALIFICATIONS

1.3.1 Qualified Painting Contractor

1.3.2 Qualified Shop Painting Contractor

1.3.3 Qualified Coating Applicator

1.3.3.1 Certification Test Procedure

1.3.3.2 Certification Criteria

1.3.4 Coating Thickness Gage Qualification

1.3.5 Certified Coating Inspector

1.4 DELIVERY, STORAGE, AND HANDLING

1.5 AMBIENT CONDITIONS

PART 2 PRODUCTS

2.1 PRODUCT SAMPLES

2.2 SPECIAL PAINT FORMULAS

2.3 PAINT FORMULATIONS

2.3.1 Formula VZ-108D

2.3.2 Formula V-766E

2.4 INGREDIENTS FOR SPECIAL PAINT FORMULAS

2.4.1 Pigments and Suspending Agents

2.4.1.1 Carbon Black

2.4.1.2 Zinc Dust

2.4.1.3 Iron Oxide

2.4.1.4 Titanium Dioxide

2.4.1.5 Suspending Agent E

2.4.1.6 Suspending Agent F

2.4.2 Resins, Plasticizer, and Catalyst

2.4.2.1 Plasticizer

2.4.2.2 Vinyl Resin, Type 3

2.4.2.3 Vinyl Resin, Type 4

2.4.2.4 Ortho-phosphoric Acid

2.4.3 Solvent and Thinners

2.4.3.1 Methanol

2.4.3.2 Methyl Ethyl Ketone

2.4.3.3 Methyl Isobutyl Ketone

2.4.3.4 Methyl Isoamyl Ketone

2.4.3.5 Toluene

2.4.4 Silane B

2.5 TESTING

2.5.1 Chromatographic Analysis

2.5.2 Vinyl Paints

SECTION 09 97 02.00 28

PART 3 EXECUTION

3.1 CLEANING AND PREPARATION OF SURFACES TO BE PAINTED

3.1.1 General Requirements

3.1.2 Ferrous Surfaces Subject to Atmospheric Exposures

3.1.3 Ferrous Surfaces Subject to Severe Exposure

3.1.4 Existing Painted Surfaces

3.2 PAINT APPLICATION

3.2.1 General

3.2.2 Mixing and Thinning of Coatings other than the Vinyl

Formulations

3.2.3 Atmospheric and Surface Conditions

3.2.4 Time between Surface Preparation and Painting

3.2.5 Method of Paint Application

3.2.6 Coverage and Film Thickness

3.2.7 Coating Thickness Measurement on Metal

3.2.8 Progress of Painting Work

3.2.9 Contacting Surfaces

3.2.10 Drying Time Prior to Immersion

3.2.11 Protection of Painted Surfaces

3.2.12 Vinyl Paints

3.2.12.1 General

3.2.12.2 Vinyl Zinc-Rich Primer

3.2.12.3 Repair of Vinyl Coating Defects

3.3 PAINT SYSTEMS APPLICATION

3.3.1 Fabricated and Assembled Items

3.3.2 Surface Preparation

3.3.3 System No. 5-E-Z

3.3.4 System No. 23-F-Z

3.3.5 Protection of Nonpainted Items and Cleanup

3.4 INSPECTION

3.5 PAINTING SCHEDULES

3.6 TOUCH-UP PAINTING

-- End of Section Table of Contents --

SECTION 09 97 02.00 28

SECTION 09 97 02.00 28

PAINTING: HYDRAULIC STRUCTURES

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN INSTITUTE OF STEEL CONSTRUCTION (AISC)

AISC 420 (2010) Certification Standard for Shop Application of Complex Protective Coating Systems

ASTM INTERNATIONAL (ASTM)

ASTM D153 (1984; R 2014) Specific Gravity of Pigments

ASTM D281 (2012; R 2016) Standard Test Method for Oil Absorption of Pigments by Spatula Rub-Out

ASTM D520 (2000; R 2011) Zinc Dust Pigment

ASTM D561 (1982; R 2014) Carbon Black Pigment for Paint

ASTM D740 (2011) Methyl Ethyl Ketone

ASTM D841 (2019) Standard Specification for Nitration Grade Toluene

ASTM D1045 (2019) Standard Test Methods for Sampling and Testing Plasticizers Used in Plastics

ASTM D1152 (2006; R 2012) Methanol (Methyl Alcohol)

ASTM D1153 (2012) Methyl Isobutyl Ketone

ASTM D1200 (2010; R 2014) Viscosity by Ford Viscosity Cup

ASTM D1210 (2005; R 2014) Fineness of Dispersion of Pigment-Vehicle Systems by Hegman-Type Gage

ASTM D2917 (2007; R 2013) Methyl Isoamyl Ketone

ASTM D3465 (2014) Standard Test Method for Purity of Monmeric Plasticizers by Gas Chromatography

ASTM D3721 (2005; R 2011) Synthetic Red Iron Oxide Pigment

ASTM D4228 (2005; R 2017) Standard Practice for Qualification of Coating Applicators for Application of Coatings to Steel Surfaces

ASTM D4417 (2021) Standard Test Methods for Field Measurement of Surface Profile of Blast Cleaned Steel

ASTM D7091 (2021) Standard Practice for Nondestructive Measurement of Dry Film Thickness of Nonmagnetic Coatings Applied to Ferrous Metals and Nonmagnetic, Nondestructive Coatings Applied to Non-Ferrous Metals

ASTM E1347 (2006; R 2020) Standard Test Method for Color and Color Difference Measurement by Tristimulus (Filter) Colorimetry

SOCIETY FOR PROTECTIVE COATINGS (SSPC)

SSPC PA 2 (2015; E 2018) Procedure for Determining Conformance to Dry Coating Thickness Requirements

SSPC Paint 40 (2019) Zinc-Rich Moisture-Cure Polyurethane Primer, Performance-Based

SSPC Paint 41 (2008) Moisture-Cured Polyurethane Primer or Intermediate Coat, Micaceous Iron Oxide Reinforced, Performance-Based

SSPC QP 1 (2019) Standard Procedure for Evaluating the Qualifications of Industrial/Marine Painting Contractors (Field Application to Complex Industrial Steel Structures and Other Metal Components)

SSPC QP 3 (2010) Standard Procedure for Evaluating Qualifications of Shop Painting Applicators

SSPC SP 1 (2015) Solvent Cleaning

SSPC SP 5/NACE No. 1 (2007) White Metal Blast Cleaning

SSPC SP 6/NACE No.3 (2007) Commercial Blast Cleaning

SOCIETY OF AUTOMOTIVE ENGINEERS INTERNATIONAL (SAE)

SAE AMS-STD-595A (2017) Colors used in Government Procurement

1.2 SUBMITTALS

Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government.

Submit the following in accordance with Section 01 33 00 SUBMITTAL

PROCEDURES:

SD-03 Product Data

Manufacturer's Safety Data Sheet ; G, ST

SD-04 Samples

Product Samples ; G, CERL

Special Paint Formulas ; G, ST

Solvent and Thinners ; G, ST

SD-06 Test Reports

Inspection Reports ; I, ST

SD-07 Certificates

Qualified Shop Painting Contractor Certificate ; G, ST

Coating Thickness Gage Qualification ; I, ST

Qualified Coating Applicator ; G, ST

Certified Coating Inspector ; G, ST

SSPC QP-1 Certificate ; G, ST

1.3 QUALIFICATIONS

Qualifications and experience must comply with the following.

1.3.1 Qualified Painting Contractor

Painting Contractors performing field painting must be certified SSPC QP 1 Painting Contractors. Submit a copy of the applicable SSPC QP-1 Certificate . The contractor must have been certified prior to award of this contract and must remain certified for the duration of this contract. Certifications scheduled to expire during the contract performance period must be renewed and submitted to the Contracting Officer prior to expiration.

1.3.2 Qualified Shop Painting Contractor

Painting Contractors must be a certified SSPC QP 3 Contractor or AISC 420 Painting Contractor with a Complex Coating Endorsement, for all off-site surface preparation or coating application. Submit a copy of the specified Qualified Shop Painting Contractor Certificate . The contractor must have been certified prior to award of this contract and must remain certified for the duration of this contract. Submit all renewals if they occur during the contract performance period. Renewals must be achieved prior to expirations occurring. AISC 420 Contractors must paint in accordance with their endorsement (CCE-1, CCE-2, or CCE-3).

1.3.3 Qualified Coating Applicator

Submit records of qualification tests for each Qualified Coating Applicator .

Prior to the initiation of any work all coating applicators must be tested and certified as meeting the requirements of ASTM D4228. Certification must be administered by an authorized government representative.

Applicators failing the certification procedure will not be permitted to apply any paint on the project.

1.3.3.1 Certification Test Procedure

Conduct certification testing of coating applicators at the job site or at the Contractor's painting facility in coordination with the Contracting Officer. Supply the fabricated test plates to be used for the tests and provide crane service, rigging, and any other work necessary to provide accessibility for the certification testing and inspection. The test plate must be painted in a near vertical position. In preparation, clean and prepare the test plate in accordance with the requirements of the contracted work. Perform abrasive blasting with the blast media to be used in the contract. The paints to be applied are Contractor supplied materials and are those previously tested and approved for use on the contract. Paints must be applied as specified in this contract. The painter being tested must mix and thin the paints to be used in the test and set up and adjust the application equipment for use. Each painter must apply each of the types of paint comprising the specified system.

The contractor's QC inspector must be present during the procedure to monitor the actions of the painter being tested. Each painter must complete their own individual test plate.

1.3.3.2 Certification Criteria

Evaluate the paint applicator based on the conformance of the applied paint system to the requirements of this specification. Deficiencies in the coatings, improper mixing or improper application methods are basis for failure. The authorized Government Representative is the sole judge as to the acceptability of each coating applicator's performance.

1.3.4 Coating Thickness Gage Qualification

Submit Coating Thickness Gage Qualification documentation of manufacturer's certification for all coating thickness gages. Use magnetic flux thickness gages as described in ASTM D7091 to make all coating thickness measurements on ferrous metal substrates. . Gages to be used on the job must have an accuracy of 3 percent or better and be certified by the manufacturer as meeting this requirement.

1.3.5 Certified Coating Inspector

Provide a certified coating inspector who is listed as either SSPC-PCI Level 2, or NACE CIP Level 2 for all surface preparation and painting activities. Submit a copy of the applicable SSPC or NACE Certificates.

Submit all renewals if they occur during the contract performance period.

Renewals must be achieved prior expirations occurring.

1.4 DELIVERY, STORAGE, AND HANDLING

Process and package paints to ensure that within a period of one year from date of manufacture, they will not gel, liver, or thicken deleteriously, or form gas in the closed container. Paints, unless otherwise specified or permitted, must be packaged in standard containers not larger than 5 gal , with removable friction or lug-type covers. Containers for vinyl-type paints must be lined with a coating resistant to solvents in the formulations and capable of effectively isolating the paint from contact with the metal container . Each container of paint or separately packaged component thereof must be labeled to indicate the purchaser's order number, date of manufacture, manufacturer's batch number, quantity, color, component identification and designated name, and formula or specification number of the paint together with special labeling instructions, when specified. Paint must be delivered to the job in unbroken containers.

Paints that can be harmed by exposure to cold weather must be stored in ventilated, heated shelters. All paints must be stored under cover from the elements and in locations free from sparks and flames.

1.5 AMBIENT CONDITIONS

Paint must be applied in accordance with the manufacturers written instructions or to the special requirements contained herein. Surfaces that are less than 5 degrees F above the dew point temperature must be monitored closely to assure that are completely free of moisture as determined by sight and touch. Paint must not be applied to surfaces upon which there is detectable frost or ice. Except as otherwise specified, paint must not be applied if the temperature of the surfaces to be painted and of air in contact therewith is less than 45 degrees F during paint application nor if the surfaces can be expected to drop to 32 degrees F or lower before the film has dried to a reasonably firm condition. During periods of inclement weather, painting may be continued by enclosing the surfaces and utilizing climate control equipment (e.g. dehumidification, heaters, etc.), provided the minimum temperatures and surface dryness requirements prescribed previously are maintained. Paint must not be applied to surfaces heated by direct sunlight or other sources to temperatures that will cause detrimental blistering, pinholing, or porosity of the film.

PART 2 PRODUCTS

2.1 PRODUCT SAMPLES

Submit product samples of each batch of thinner, solvent, and paint to the Government for testing. Submit manufacturer's Safety Data Sheet (SDS) for each type of paint used; for products that are specified to be applied in accordance with the manufacturer's recommendations, submit the paint manufacturer's product data sheet (PDS) or other written instructions for those products. Allow at least 30 days from time of delivery to the contracting officer for testing of samples of paints and thinners.

Sampling may be at the jobsite or source of supply. Coordinate sampling and submission of all samples of paint and thinner with the Contracting Officer. Standard sample size for liquid paints and thinners is 1-quart ;

powders and other additives for multi component paints may be of appropriately smaller size. The sample must be labeled to indicate formula or specification number and nomenclature, batch number, batch quantity, color, date made, and applicable project contract number.

Testing will be performed by the Government. Costs for retesting rejected material will be deducted from payments to the Contractor at the rate of 1900 dollars for each paint sample retested and 400 dollars for each thinner retested.

2.2 SPECIAL PAINT FORMULAS

Special paints must have the composition as indicated in the formulas listed herein. Where so specified, package paint formulation components in separate containers for mixing on the job. If not specified or otherwise prescribed, the color must be that naturally obtained from the required pigmentation.

2.3 PAINT FORMULATIONS

Special paint formulas must comply with the following:

2.3.1 Formula VZ-108D

This formula is for Vinyl-Type Zinc-Rich Impacted Immersion Coating, the ingredients are shown below.

INGREDIENTS PERCENT BY WEIGHT POUNDS GALLONS

COMPONENT A

Vinyl Resin, Type 3 16.6 109.2 9.65

Methyl Isobutyl Ketone

80.6 528.9 79.30

Suspending Agent E 0.7 4.6 0.28

Suspending Agent F 0.4 2.7 0.19

Methanol 0.5 3.3 0.50

Synthetic Iron Oxide (Red)

1.2 7.9 0.19

Total 100.0 656.6 90.11

COMPONENT B

Silane B 100.0 4.1 0.47

COMPONENT C

Zinc Dust 100.0 550.0 9.42

Total Volume 100.00 (mixed paint)

a. Disperse the iron oxide and suspending agents into the vehicle (Component A) to a fineness of grind of not less than 4 on the Hegman scale ( ASTM D1210). Grinding in steel-lined containers or using steel-grinding media will not be permitted. The paint must show the proper proportions of specified materials when analyzed by chromatographic and/or spectrophotometric methods. The sole purpose of the iron oxide pigment is to produce a contrasting color. A red iron oxide-type 3 vinyl resin vehicle paste may be used in place of dry iron oxide provided compensating adjustments are made in the additions of Type 3 resin and methyl isobutyl ketone. The finished product with zinc dust added must produce a paint which has a red tone upon drying and a reflectance of not more than 16 ( ASTM E1347).

b. Supply VZ-108D paint as a kit. Each kit must consist of 4.5 gal (

33.1 pounds ) of Component A in a 5-gallon lug closure type pail, 27.5 pounds of zinc dust (Component C) packaged in a 1-gal plastic pail, and 3 fluid ounces of silane (Component B) packaged in a glass bottle of suitable size having a polyethylene lined cap. Place the bottle of silane on the zinc dust in the 1-gal pail. In addition to standard labeling requirements, identify each container of each component as to component type. Each container label of Component A must carry the following: MIXING AND APPLICATION INSTRUCTIONS: WARNING - THIS PAINT WILL NOT ADHERE TO STEEL SURFACES UNLESS COMPONENT B IS ADDED. Remove the 3 ounces of bottled Component B (silane) from the Component C (zinc dust) container and add to the base paint Component A) with thorough stirring. Then sift the zinc dust into the base paint while it is being vigorously agitated with a power-driven stirrer and continue the stirring until the zinc dust has been dispersed. At some point strain the mixed paint through a 30-60 mesh screen to prevent zinc dust slugs from reaching the spray gun nozzle. Stir the paint continuously during application at a rate that will prevent settling.

If spraying is interrupted for longer than 15 minutes, vigorously whip the entire length of the hose to redisperse the zinc. If the spraying is to be interrupted for more than 1 hour, empty the hose by blowing the paint back into the paint pot. Thinning will not normally be required when ambient temperatures are below about 80 degrees F , but when the ambient and steel temperatures are higher, methyl isoamyl ketone (MIAK) or methyl isobutyl ketone (MIBK) should be used. If paint is kept covered at all times, its pot life will be about 8 days.

2.3.2 Formula V-766E

This formula is for Vinyl-Type White (or Gray) Impacted Immersion Coating, the ingredients are shown below.

INGREDIENTS PERCENT BY MASS

Vinyl Resin, Type 3 5.6

Vinyl Resin, Type 4 11.6

Titanium Dioxide and (for Gray) Carbon Black

13.0

Plasticizer 2.9

Methyl Isobutyl Ketone 32.0

Toluene 34.7

Ortho-Phosphoric Acid 0.2

INGREDIENTS PERCENT BY MASS

Total 100.0

a. Disperse the pigment by means of pebble mills or other approved methods to produce a fineness of grind ( ASTM D1210) of not less than 7 on the Hegman scale. Grinding in steel-lined or steel-ball mills will not be permitted. No grinding aids, antisettling agents, or any other materials except those shown in the formula will be permitted.

Measure the ortho-phosphoric acid accurately and dilute it with at least four parts of ketone to one part of acid. Add it slowly into the finished paint with constant and thorough agitation.

b. The finished paint must show the proper proportions of specified materials when analyzed by chromatographic and/or spectrophotometric methods, and have a viscosity between 60 and 90 seconds using ASTM D1200 and a No. 4 Ford cup.

c. Furnish the white and gray paints in the volume ratio designated by the purchaser. The gray paint must contain no pigments other than those specified. Include enough carbon black to produce a dry paint film having a reflectance of 20-24 ( ASTM E1347). The resulting gray color must approximate color 26231 of SAE AMS-STD-595A .

2.4 INGREDIENTS FOR SPECIAL PAINT FORMULAS

The following ingredient materials and thinners apply only to those special paints whose formulas are shown above in detail.

2.4.1 Pigments and Suspending Agents

2.4.1.1 Carbon Black

Carbon black must conform to ASTM D561, Type I or II.

2.4.1.2 Zinc Dust

Zinc dust pigment must conform to ASTM D520, Type II.

2.4.1.3 Iron Oxide

Iron oxide, (Dry) synthetic (red), must conform to ASTM D3721. In addition, the pigment must have a maximum oil absorption of 24 and a specific gravity of 4.90 to 5.20 when tested in accordance with ASTM D281 and ASTM D153, Method A, respectively. When the pigment is dispersed into specified vinyl paint formulation, the paint must have color approximating SAE AMS-STD-595A color 10076 (dark red paint), and show no evidence of incompatibility or reaction between pigment and other components after 6 months storage.

2.4.1.4 Titanium Dioxide

Titanium dioxide in vinyl paint Formula V-766E must be one of the following: Kronos 2160 or 2101, Kronos, Inc.; Ti-Pure R-960, E.I. Dupont DeNemours and Co., Inc.

2.4.1.5 Suspending Agent E

Suspending Agent E must be a light cream colored finely divided powder having a specific gravity of 2 to 2.3. It must be an organic derivative of magnesium aluminum silicate mineral capable of minimizing the tendency of zinc dust to settle hard without increasing the viscosity of the paint appreciably. M-P-A-14, produced by Elementis Specialties, has these properties.

2.4.1.6 Suspending Agent F

Suspending Agent F must be a light cream colored finely divided powder having a specific gravity of approximately 1.8. It must be an organic derivative of a special montmorillonite (trialkylaryl ammonium hectorite). Bentone 27, produced by Elementis Specialties, has these properties.

2.4.2 Resins, Plasticizer, and Catalyst

2.4.2.1 Plasticizer

The plasticizer must be either Di 2-propyl Heptyl Phthalate (DPHP) or Diisodecyl Phthalate (DIDP). DPHP must have an ester content of not less than 99.5 percent ( ASTM D3465), must contain not more than 0.1 percent water, and must have an acid number ( ASTM D1045) of not more than 0.07.DIDP must have a purity of not less than 99.0 percent, must contain not more than 0.1 percent water, and must have an acid number ( ASTM D1045) of not more than 0.10.

2.4.2.2 Vinyl Resin, Type 3

Vinyl resin, Type 3, must be a vinyl chloride-acetate copolymer of medium average molecular weight produced by a solution polymerization process and must contain (by weight) 85 +/- 1.0 percent vinyl chloride and 15 +/- 1.0 percent vinyl acetate by weight. The resin must have film-forming properties and must, in specified formulations, produce results equal to Vinnol H 15/50, as manufactured by Wacker Chemie AG.

2.4.2.3 Vinyl Resin, Type 4

Vinyl resin, Type 4, must be a vinyl chloride-acetate type produced by a solution polymerization process, must contain 1 percent interpolymerized dicarbonic acid, 84 +/- 1.0 percent vinyl chloride, and 15 +/- 1.0 percent vinyl acetate. The resin must have film-forming properties and must, in the specified formulations, produce results equal to Vinnol H 15/45 M, as manufactured by Wacker Chemie AG.

2.4.2.4 Ortho-phosphoric Acid

Ortho-phosphoric acid must be a chemically pure 85-percent grade.

2.4.3 Solvent and Thinners

2.4.3.1 Methanol

Methanol (methyl alcohol) must conform to ASTM D1152.

2.4.3.2 Methyl Ethyl Ketone

Methyl ethyl ketone (MEK) must conform to ASTM D740.

2.4.3.3 Methyl Isobutyl Ketone

Methyl isobutyl ketone (MIBK) must conform to ASTM D1153.

2.4.3.4 Methyl Isoamyl Ketone

Methyl isoamyl ketone (MIAK) must conform to ASTM D2917.

2.4.3.5 Toluene

Toluene must conform to ASTM D841.

2.4.4 Silane B

Silane B for Formula VZ-108D must be N-beta-(aminoethyl)-gamma-aminopropyltrimethoxy silane. Silquest A-1120, produced by Momentive Performance Materials Inc., and Silane Z-6020, produced by Dow Corning Corporation, are products of this type.

2.5 TESTING

2.5.1 Chromatographic Analysis

Solvents in vinyl paints and thinners are subject to analysis by programmed temperature gas chromatographic methods and/or spectrophotometric methods, employing the same techniques that give reproducible results on prepared control samples known to meet the specifications. If the solvent being analyzed is of the type consisting primarily of a single chemical compound or a mixture or two or more such solvents, interpretation of the test results must take cognizance of the degree of purity of the individual solvents as commercially produced for the paint industry.

2.5.2 Vinyl Paints

Vinyl paints are subject to the following adhesion test. When V-766 or V-106 formulations are tested, spray apply 5 to 7 mils (dry) to mild steel panels. The steel panels must be essentially free of oil or other contaminants that may interfere with coating adhesion and be dry blast cleaned to a White Metal grade in compliance with SSPC SP 5/NACE No. 1 .

The surface must have an angular profile of 2.0 to 2.5 mils as measured by ASTM D4417, Method C. When V-102 or V-103 formulations are tested, spray apply the product over 1.5 to 2.5 mils (dry) of V-766 or V-106 known to pass this test. When VZ-108 is tested, the coating must be mixed in its proper proportions and then spray applied to a dry film thickness of 1.5 to 2.5 mils above the blast profile. The VZ-108 must be top coated with a V-766 known to pass this test. In all cases, the complete system must have a total dry film thickness of 5 to 7 mils above the blast profile.

After being air dried for 2 hours at room temperature, dry the panel in a vertical position for 16 hours at 120 degrees F . After cooling for 1 hour, immerse the panel in tap water at 85 to 90 degrees F for 48 to 72 hours. Immediately upon removal, dry the panel with soft cloth and examine for adhesion as follows: With a pocket knife or other suitable instrument, make two parallel cuts at least 1 inch long, 1/4 to 3/8 inch apart through the paint film to the steel surface. Make a third cut perpendicular to and passing through the end of the first two. With the tip of the knife blade, loosen the film from the panel from the third cut between the parallel cuts for a distance of 1/8 to 1/4 inch . With the panel being held horizontally, grasp the free end of the paint film between the thumb and forefinger and pulled vertically in an attempt to remove the film as a strip from between the first two cuts. Remove the strip of paint film at a rate of approximately 1/10 inch per second and maintaining it in a vertical position during the process of removal. The adhesion is acceptable if the strip of paint breaks when pulled or if the strip elongates a minimum of 10 percent during its removal. Paints not intended to be self-priming must not exhibit any delamination from the primer.

PART 3 EXECUTION

3.1 CLEANING AND PREPARATION OF SURFACES TO BE PAINTED

3.1.1 General Requirements

Clean surfaces to be painted before applying paint or surface treatments.

Remove deposits of grease or oil in accordance with SSPC SP 1 , prior to mechanical cleaning. Perform solvent cleaning with mineral spirits or other low toxicity solvents having a flash point above 100 degrees F . Use clean cloths and clean fluids to avoid leaving a thin film of greasy residue on the surfaces being cleaned. Protect items not to be prepared or coated from damage by the surface preparation methods. Protect machinery and electrical components against entry of blast abrasive and dust into working parts. Program cleaning and painting such that dust or other contaminants from the cleaning process do not fall on wet, newly painted surfaces. Protect surfaces not intended to be painted from the effects of cleaning and painting operations. Conduct welding of, or in the vicinity of, previously painted surfaces in a manner to prevent weld spatter from striking the paint and to otherwise reduce coating damage to a minimum. Restore any paint damaged by welding operations to original condition. Surfaces to be painted that will be inaccessible after construction, erection, or installation operations are completed must be painted before they become inaccessible.

3.1.2 Ferrous Surfaces Subject to Atmospheric Exposures

Clean ferrous surfaces that are to be continuously in exterior or interior atmospheric exposure and other surfaces as directed by means of dry blasting to a commercial grade. Perform cleaning and priming in the shop unless otherwise directed or permitted. Conduct commercial blast cleaning in conformance with the requirements of SSPC SP 6/NACE No.3 . Clean welds and adjoining surfaces within a few inches (centimeters) of weld flux, spatter, and other harmful deposits by blasting, power impact tools, power wire brush, or such combination of these and other methods as may be necessary for complete removal of each type of deposit. Welds and adjacent surfaces cleaned thoroughly by blasting alone will be considered adequately prepared provided that weld spatter not dislodged by the blast stream is removed with impact or grinding tools. Round all sharp edges including those caused by corrosion, to a minimum radius of 1/16 inch to ensure adequate paint coverage. Prime all surfaces as soon as practicable after cleaning and in all cases prior to contamination or deterioration of the prepared surfaces. To the greatest degree possible, clean (and prime) all steel surfaces prior to lengthy outdoor storage.

3.1.3 Ferrous Surfaces Subject to Severe Exposure

Dry blast-clean ferrous surfaces subject to extended periods of immersion or as otherwise required to white metal according to SSPC SP 5/NACE No. 1 .

The blast profile must be angular with a minimum profile height of 1.5 mils . Select appropriate abrasive size and equipment operating parameters to limit maximum surface profile on new steel to 2.5 mils and to prevent increasing existing profile height on previously blasted steel. Where an existing profile is encountered, remove representative spots of existing coating with a chemical stripper and measure and document the existing profile prior to initiating blasting operations. Measure all surface profiles in accordance with ASTM D4417, Method C. Steel shot or other abrasives that do not produce an angular profile must not be used. If recycled blast media is used, maintain an appropriate particle size distribution so that the specified profile is consistently obtained. Round all sharp edges including those caused by corrosion, to a nominal 1/16 inch radius and reblast the areas prior to painting. Remove weld spatter not dislodged by blasting with impact or grinding tools and reblast the areas prior to painting. Surfaces must be dry at the time of blasting.

Within 8 hours after blast cleaning, and in any case prior to the deposition of any detectable moisture, contaminants, or corrosion, clean all ferrous surfaces of dust and abrasive particles by brush, vacuum cleaner, and/or blown down with clean, dry, compressed air, and apply the first coat of paint. If pinpoint or general rusting appears, the defective areas must be reblasted and repainted at no added cost to the Government.

3.1.4 Existing Painted Surfaces

Existing painted steel surfaces to be repaired shall have paint removed as required to facilitate metalwork operations. All paint damaged by welding, including the back side of plates, shall be removed a minimum of 6 inches beyond the heat affected zone. Existing paint to remain shall be overcoated a minimum of 6 inches around the perimeter of all repairs.

3.2 PAINT APPLICATION

3.2.1 General

Unless otherwise specified, the finished coating must be free from holidays, pinholes, bubbles, runs, drops, ridges, waves, laps, excessive or unsightly brush marks, and variations in color, texture, and gloss. Do not initiate the application of initial or subsequent coatings until the Contracting Officer has verified that atmospheric conditions and the surfaces to be coated are satisfactory. Each paint coat must be applied in a manner that will produce an even, continuous film of uniform thickness. Provide special attention to edges, corners, crevices, seams, joints, welds, rivets, corrosion pits, and other surface irregularities to ensure that they receive an adequate thickness of paint. Spray equipment must be equipped with traps and separators and where appropriate, mechanical agitators, pressure gauges, pressure regulators, and screens or filters. Air caps, nozzles, and needles must be as recommended by the spray equipment manufacturer for the material being applied. Airless-type spray equipment may be used only on broad, flat, or otherwise simply configured surfaces, except that it may be employed for general painting if the spray gun is equipped with dual or adjustable tips of proper types and orifice sizes. The use of airless-type equipment is not allowed for the application of vinyl paints.

3.2.2 Mixing and Thinning of Coatings other than the Vinyl Formulations

Paints must be thoroughly mixed, strained where necessary, and kept at a uniform composition and consistency during application. Incorporate dry-powder pigments specified to be added at the time of use, into the vehicle or base paint with the aid of powered stirrers, in a manner that will produce a smooth, homogeneous mixture free of lumps and dry particles. Where necessary to suit conditions of the surface temperature, weather, and method of application, the paint may be thinned immediately prior to use. Thinning, induction time and pot life must comply with the manufacturers written instructions (PDS). Bring any paint that has been stored at a temperature below the manufacturer's application temperature range up to at least 70 degrees F before being mixed and thinned. Its temperature in the spray tank or other working container must not fall below the manufacturer's specified application temperature range during the application. Any paint that has deteriorated in any manner to a degree that it cannot be restored to essentially its original condition by customary field-mixing methods must not be used and must be removed from the project site. In order to determine its suitability for application, resample and submit for testing any paint and thinner that is more than 1 year from the date of manufacture or last documented testing. Moisture cure urethane paint must be resampled and resubmitted for testing to determine its suitability for application whenever the paint is more than six months beyond the date of manufacture on the container or more than 6 months beyond the last documented laboratory testing.

3.2.3 Atmospheric and Surface Conditions

Paint shall be applied only to surfaces that…

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