9-08Paints and Related Materials

9-08.1 Paint

9-08.1(1) Description

Paints used for highway and bridge structure applications shall be made from materials meeting the requirements of the applicable Federal and State Paint Specifications, Department of Defense (DOD), American Society on Testing of Materials (ASTM), and The Society for Protective Coatings specifications in effect at the time of manufacture. The colors, where designated, shall conform to Section 9-08.1(8) .

9-08.1(2) Paint Types

9-08.1(2)A Vinyl Pretreatment

Vinyl pretreatment shall be a two-component basic zinc chromate-vinyl butyral wash primer conforming to DOD-P-15328 (Formula 117 for Metals) and SSPC Paint 27. Zinc chromate shall be the insoluble type. The paint shall be supplied as two components that are mixed together just prior to use.

9-08.1(2)B Galvanizing Repair Paint, High Zinc Dust Content

Galvanizing repair paint shall conform to Federal Specification MIL-P-21035B.

9-08.1(2)C Inorganic Zinc-Rich Primer, Shop Applied

Inorganic zinc-rich primer shall be a two-component, self-curing, inorganic zinc-rich paint, conforming to either AASHTO M300 or SSPC Paint 20 Type I.

9-08.1(2)D Vacant

9-08.1(2)E Epoxy Polyamide

Epoxy polyamide primer shall be a two-component system conforming to MIL-DTL-24441 or SSPC Coating Standard No. 42.

9-08.1(2)F Primer, Zinc-Rich, Single-Component, Moisture-Cured Polyurethane,

Field Applied Zinc-rich primer shall meet the following requirements: Vehicle Type: Moisture-cured polyurethane. Pigment Content: 80 percent minimum zinc by weight in dry film. Volume Solids: 60 percent minimum. Minimum wt./gal. 22.0 pounds.

9-08.1(2)G Intermediate and Stripe Coat, Single Component, Moisture-Cured

Polyurethane Vehicle Type: Moisture-cured polyurethane. Pigment: A minimum of 3.0 lbs. of micaceous iron oxide per gallon. Intermediate and any stripe coat shall meet the following requirements: Minimum volume solids 50 percent. A minimum of 3.0 lbs/gal. of micaceous iron oxide. The intermediate coating shall be certified by the manufacturer to be able to be recoated by the top coat in a minimum of 4 days. Page 9-70 M 41-10

9-08 Paints and Related Materials9-08.1(2)H Top Coat, Single-Component, Moisture-Cured Polyurethane

Vehicle Type: Moisture-cured aliphatic polyurethane. Color and Gloss: Meet the SAE AMS Standard 595 Color as specified in the table below. The Top Coat shall meet the following requirements The resin shall be an aliphatic urethane. Minimum-volume solids 50 percent. The top coat shall be a gloss or semi-gloss. Color Semi-Gloss Washington Gray 26357 Mt. Baker Gray 26134 Mt. St. Helens Gray 26306 Cascade Green 24158

9-08.1(2)I Rust-Penetrating Sealer

Rust-penetrating sealer shall be a two-component, chemically cured, 100 percent solids epoxy.

9-08.1(2)J Black Enamel

The enamel shall conform to Federal Specification MIL PRF 24635E Type II Class 2.

9-08.1(2)K Orange Equipment Enamel

The enamel shall be an alkyd gloss enamel conforming to Federal Specification MIL-PRF- 24635E Type II Class 1. The color, when dry, shall match that of SAE AMS Standard 595, color number 12246. For factory application to individual items of new equipment, samples and testing of the enamel shall not be required; however, the equipment manufacturer shall match the color specified and shall certify the quality of enamel used.

9-08.1(2)L Exterior Acrylic Latex Paint-White

This paint shall conform to Federal Specification MIL-PRF-24635E Type II Class 1, 2 or 3. This paint may be used self-primed in multiple coats over salts-treated wood and on interior and exterior masonry surfaces.

9-08.1(2)M NEPCOAT Qualified Products List A

Qualified products used shall be part of a NEPCOAT system supplied by the same manufacturer.

9-08.1(2)N NEPCOAT Qualified Products List B

Qualified products used shall be part of a NEPCOAT system supplied by the same manufacturer.

9-08.1(3) Working Properties

The paint shall contain no caked material that cannot be broken up readily by stirring. When applied to a clean vertical surface, the paint shall dry without running, streaking, or sagging.

9-08.1(4) Storage Properties

Paints manufactured under these Specifications shall show no skin over the surface after 48 hours in a partially filled container, when tested as outlined in Federal Test Method Standard No. 141. A slight amount of skin or gel formation where the surface of the paint M 41-10 Page 9-71 Paints and Related Materials 9-08meets the side of the container may be disregarded. Variable percentages of anti-skinning agents are shown in those formulas set forth above that are susceptible to undesirable skin formation. The manufacturer will be allowed to vary the amount of anti-skinning agent given in the formulas provided the above results are accomplished and provided the paint does not dry to a nonuniform or nonelastic film.

9-08.1(5) Fineness of Grinding

The paint shall be ground so that all particles of pigment will be dispersed and be coated with vehicle, and the residue on a 325 sieve will not exceed 1 percent by weight of the pigment. Paint shall be homogeneous, free of contaminant, and of a consistency suitable for use under intended application. Finished paint shall be well ground, and the pigment shall be properly dispersed in the vehicle, conforming to the requirements of the paint. Dispersion in the vehicle shall be such that the pigment does not settle excessively, does not cake or thicken in the container, and does not become granular or curdled.

9-08.1(6) Test Methods

Except as otherwise specified, all paints shall be sampled and tested in the ready-mixed form. The test methods shall be as specified in the WSDOT Materials Manual M 46-01 or the corresponding test method covered by Federal Test Method Standard No. 141 or as specified under AASHTO R 31.

9-08.1(7) Acceptance

For projects with moisture-cured polyurethane quantities less than 20 gallons, acceptance will be by the Manufacturer’s Certificate of Compliance. For projects with moisture-cured polyurethane quantities greater than 20 gallons, the product shall be listed in the current WSDOT Qualified Products List (QPL). If the lot number is listed on the QPL, it may be accepted without additional testing. If the lot number is not listed on the QPL, a 1-quart sample shall be submitted to the State Materials Laboratory for testing and acceptance. For all other paint types, acceptance will be based on visual inspection.

9-08.1(8) Standard Colors

When paint is required to match a SAE AMS Standard 595 color, the paint manufacturer or the Contractor may obtain a sample of the required color through the following internet link: www.colorserver.net . Unless otherwise specified, all top or finish coats shall be semi-gloss, with the paint falling within the range of 35 to 70 on the 60-degree gloss meter.

9-08.2 Powder Coating Materials for Coating Galvanized Surfaces

The powder coating system shall consist of two components: an epoxy primer coat and a polyester finish coat. The epoxy primer coat and the polyester finish coat materials shall be from the same manufacturer. The epoxy primer coat shall be an epoxy powder primer conforming to the following requirements: Property Specification Performance Requirement Adhesion ASTM D3359 Method B 5B (no failure) Flexibility ASTM D522 Method B Pass ⅛″ mandrel bend Pencil Hardness ASTM D3363 H Plus Specific Gravity ASTM D5965 1.25 minimum The polyester finish coat shall conform to American Architectural Manufacturers Association (AAMA) Specification 2604. Page 9-72 M 41-10

9-08 Paints and Related MaterialsDegassing additives may be added as necessary to prevent pin holes in the finish coat. The

degassing additives shall be added in accordance with manufacturer’s recommendations. The color of the powder coating system polyester finish coat shall be as specified in the Plans or Special Provisions. Repair materials shall be as recommended by the powder coating manufacturer and as specified in the Contractor’s powder coating plan as accepted by the Engineer.

9-08.3 Concrete Surface Treatments

9-08.3(1) Pigmented Sealer Materials

The pigmented sealer shall be a semi-opaque, colored toner containing only methyl methacrylate-ethyl acrylate copolymer resins, toning pigments suspended in solution at all times by a chemical suspension agent, and solvent. Toning pigments shall be laminar silicates, titanium dioxide, and inorganic oxides only. There shall be no settling or color variation. Tinting shall occur at the factory at the time of manufacture and placement in containers, prior to initial shipment. Use of vegetable or marine oils, paraffin materials, stearates, or organic pigments in any part of coating formulation will not be permitted. The color of pigmented sealer shall be as specified by the Contracting Agency. The Contractor shall submit a 1-quart wet sample, a drawdown color sample, and spectrophotometer or colorimeter readings taken in accordance with ASTM D2244, for each batch and corresponding standard color card. The calculated Delta E shall not exceed 1.5 deviation from the Commission Internationale de l’Eclairage (CIELAB) when measured at 10 degrees Standard Observer and Illuminant D 65. The 1-quart wet sample shall be submitted in the manufacturer’s labeled container with product number, batch number, and size of batch. The companion drawdown color sample shall be labeled with the product number, batch number, and size of batch. The Contractor shall submit the specified samples and readings to the Engineer at least 14 calendar days prior to the scheduled application of the sealer. The Contractor shall not begin applying pigmented sealer until receiving the Engineer’s written approval of the pigmented sealer color samples.

9-08.3(2) Exposed Aggregate Concrete Coatings and Sealers

9-08.3(2)A Retardant Coating

Retardant coating shall exhibit the following properties:

9-08.3(2)B Clear Sealer

The sealer for concrete surfaces with exposed aggregate finish shall be a clear, non-gloss, penetrating sealer of either a silane, siloxane, or silicone based formulation. M 41-10 Page 9-73 Paints and Related Materials 9-089-08.3(3) Permeon Treatment Permeon treatment shall be a product of known consistent performance in producing the SAE AMS Standard 595 Color No. 30219 target color hue established by WSDOT, either selected from the WSDOT Qualified Products List (QPL), or an equivalent product accepted by the Engineer. For acceptance of products not listed in the current WSDOT QPL, the Contractor shall submit Type 3 Working Drawings consisting of a one-quart product sample from a current lot, supporting product information and a Safety Data Sheet.

9-08.4 Abrasive Blast Materials

9-08.4(1) Abrasive Blast Media

Material used for field abrasive blasting shall conform to Military Specification MIL-A-22262B(SH) as listed on QPL-22262-28 as maintained by the Department of the Navy. The Contractor shall provide the Engineer with certified test results from the abrasive blast media manufacturer showing that the abrasive blast material meets the Military Specification. The Contractor shall select the type and size of abrasive blast media to produce a roughened, sharp, angular surface profile conforming to the surface requirements specified by the manufacturer of the selected paint system.

9-08.4(2) Lead Abatement Additive

Lead abatement additive shall be a granular chemical abrasive additive consisting of a complex calcium silicate designed to stabilize lead through multiple mechanisms, including, but not limited to, pH adjustment, chemical reactions, and encapsulation. The additive shall be specifically designed and manufactured for lead paint abatement.

9-08.5 Surface Cleaning Materials

9-08.5(1) Bird Guano Treatment

Bird guano treatment shall consist of a 5.25 percent sodium hypochlorite solution.

9-08.5(2) Fungicide Treatment

Fungicide treatment shall consist of a 5.25 percent sodium hypochlorite solution.

9-08.5(3) Water

Water used for water jetting steel surface cleaning operations shall be clean, fresh water only, without any detergents, bleach, or any other cleaning agents or additives. Recycling of rinse water for water jetting operations is not allowed.

9-08.6 Filter Fabric

Filter fabric for water jetting operations shall be a polypropylene, nonwoven, needle- punched geosynthetic or equivalent material conforming to the following requirements: Property Specification Performance Requirement Grab Tensile Strength ASTM D4632 100 pounds minimum Apparent Opening Size ASTM D4751 #70 sieve Permittivity ASTM D4491 1.0 sec-1 or better

9-08.7 Single-Component Polyurethane Sealant

Single-component polyurethane sealant shall conform to ASTM C920 Grade NS Class 25 or higher.

9-08.8 Foam Backer Rod

Foam backer rod shall be closed cell expanded polyethylene or polyurethane foam.