975STRUCTURAL COATING MATERIALS

975-1 General Requirements.

975-1.1 General: Upon curing, all coatings and/or coating systems must produce an

adherent coating that is visually uniform. The composition of the coating is left to the discretion of the manufacturer but the finished product shall meet all requirements of this Section. A ll coats of multi-coat systems shall be supplied by the same manufacturer. Multi -component coatings shall be prepackaged in the required ratios.

975-1.2 Environmental Requirements: Coating materials and their waste shall be

characterized as non -hazardous as defined by Resource Conservation and Recovery Act (RCRA) Subarticle C rules, Table 1 of 40 CFR 261.24 Toxicity Characteristic. Volatile Organic Compounds (VOC) shall be less than 3.5 pounds per gallon when tested in accordance with ASTM D3960.

975-1.3 Approved Product List (APL): All polymeric coating materials except the

materials in 975-4 shall be listed on the Department’s Approved Product List ( APL). Manufacturers seeking evaluation of their products shall submit the product data sheets, performan ce test reports from NTPEP or an independent laboratory showing that the product meets the requirements of this Section, a Product SDS or performance test reports showing percent weight compositional analysis including Chemical Abstract Number, ACGIH time weighted average and ceiling exposure limits for all components, lower and upper explosive limits, flash point, boiling point, amount of volatile organic compounds by weight, and specific gravity for each component of the coating system, and a APL application in accordance with Section 6.

975-1.4 Packaging and Labeling: Materials shall be shipped in containers legibly

marked with application instructions, lot number, batch number, date of manufacture, shelf life, and Department APL number. Each lot or batc h manufact ured must have a unique number.

975-1.5 Coating Identification: When applicable, the Department will conduct Fourier

Transform Infrared Spectroscopy (FTIR) analysis on coating system components for material identification.

975-2 Structural Steel Coating Systems.

975-2.1 General: Structural steel coatings shall meet t he application requirements of

Section 560. Prepare and coat sixteen flat and four composite test panels in accordance with AASHTO R-31 (in color White, Grey , or Green) for each coating system proposed for approval and submit to the State Materials Office (SMO). Samples will be subject to verification testing by the Department, as identified in 975 -2.2. In addition, submit a 1-quart wet sample of each component of each coating system , one container of compatible caulk to the SMO.

975-2.2 Performance Requir ements: Each coating system will be subject to the testing

identified in 975 -2.2.1 and 975-2.2.2. All coatings, regardless of color, shall meet the requirements in Table 975-1.

975-2.2 1 Random Laboratory Verification Testing: Prepare and coat twelve

flat test panels for random laboratory verification testing.

975-2.2 2 Outdoor Exposure Testing: Prepare and coat eight test panels (four

flat and four composite) for exposure at the Department’s outdoor test site . Panels will be tested in accordance with ASTM G7. FY 2023-24 Return to Table of Contents Table 975 -1 Structural Steel Coating System Performance Requirements Laboratory Testing Property Test Method Acceptance Criteria Slip Coefficient AASHTO R 31 Test No. 1 Min. Class B (primer only) Salt Fog Resistance AASHTO R 31 Test No. 2 ASTM D610 Blister Value = 10 Average Rust Creep at the Scribe ≤ 3/32” Rust grade ≥ 9S, 9G, 9P after 8,760 hours Salt Fog Resistance Unscribed Blister Value = 10 Rust grade ≥ 9S, 9G, 9P after 8,760 hours Cyclic Weathering Resistance AASHTO R 31 Test No. 3 Blister Value = 10 Average Rust Creep at the Scribe ≤ 6/32”, Color Retention ΔE*ab ≤ 8.0, Gloss loss ≤ 33% after 15 cycles – 336 hours each cycle Abrasion Resistance AASHTO R 31 Test No. 4 Wear Index ≤ 2.7 mg/cycle Adhesion ASTM D4060 1,000 Cycles, CS -17 Wheel, 1 kg. Weight Avg. system tensile strength ≥ 800 psi 2-Year Outdoor Testing Property Test Method Acceptance Criteria Rusting ASTM D610 ASTM D1654 a (scribed) ASTM D1654 (un -scribed) Rust Grade ≥ 9S, 9G, 9P Rating of Failure at Scribe ≥ 9 After 2-Years Blistering ASTM D714 Blister Value = 10 After 2-Years Adhesion ASTM D4541; annex A4 Avg. Tensile Strength ≥ 800 psi (un-scribed area) After 2 -Years Color Retention ASTM D2244 Avg. ΔE*ab ≤ 8.0 After 2-Years Gloss ASTM D523 Avg. ≤ 33% loss of gloss After 2 -Years

975-2.3 Structural Steel Coating Systems for New Structures : Systems must meet the

general composition requirements of Table 975-2 and this section. FY 2023-24 Return to Table of Contents Table 975-2 Structural Steel Co ating System General Composition Requirements Primer Intermediate Finish Clear (Optional) Inorganic Zinc -Rich Ethyl Silicate None Inorganic Ethyl Silicate Manufacturers Recommendation Inorganic Zinc -Rich Ethyl Silicate Cycloaliphatic Amine Epoxy Or Polyamide Epoxy Polyurethane Polysiloxane Acrylic Fluoropolymer Inorganic Zinc -Rich Ethyl Silicate Polyurethane (Epoxy Stripe) Fluoropolymer

975-2.3 1 High Performance Coating Systems (Color Pigmented):

975-2.3 1.1 Prime Coat: Provide inorganic zinc -rich primers consisting of

zinc dust, functional additives, and an inorganic binder, with appropriate solvents. The composition of the primer shall consist of an inorganic self -curing vehicle, t hat contains solvent-reducible silicates, titanates, and polymeric versions of the silicates. Zinc dust pigment shall contain a minimum of 77% zinc dust by weight and a maximum lead level of 0.01% in accordance with ASTM D520. The manufacturer shall identi fy the amount of zinc dust on the product label. The performance requirements for gloss and color retention are not applicable.

975-2.3 1.2 Intermediate Coat: Intermediate coatings must meet

Table 975-2. Epoxies must be a cycloaliphatic amine or polyami de.

975-2.3 1.3 Finish Coat: The finish coat shall provide the color and gloss

required for the completed coating system. A finish coat may be comprised of a single pigmented coat or a pigmented coat with a clear coat that meets Table 975-2.

975-2.3 1.4 Clear Coat: The clear coat may contain a dissipating colorant.

The dissipating colorant shall be visible for a minimum of 12 hours after application and shall completely dissipate within 96 hours after application.

975-2.3 2 Interior Box Girder Coa ting: The interior coat shall be one coat of

white epoxy paint meeting 975 -2.3.1.2 and listed on the Department’s APL. Faying surfaces and areas to be stud welded are to be masked off and coated with a zinc -rich primer from the APL. The performance requirements for gloss and color retention are not applicable.

975-2.4 Structural Steel Coating Systems for Existing Structures: Systems must meet

the general composition requirements of Table 975-3 and this section. FY 2023-24 Return to Table of Contents Table 975-3 Structural Steel Coating System General Composition Requirements Primer Intermediate Finish Clear (Optional) Organic Zinc -Rich Epoxy Or Inorganic Zinc -Rich Ethyl Silicate None Inorganic Ethyl Silicate Manufacturers Recommendation Organic Zinc -Rich Epoxy Or Inorganic Zinc -Rich Ethyl Silicate Cycloaliphatic Amine Epoxy Or Polyamide Epoxy Polyurethane Polysiloxane Acrylic Fluoropolymer

975-2.4 1 Prime Coat: Provide inorganic or organic zinc -rich primers consisting

of zinc dust, functional additives, and an organic binder with appropriate solvents. The composition of the primer shall consist of an organic vehicle that may chemically cure or may dry by solvent evaporation. Zinc dust pigment shall contain a minimum of 77% zinc dust by weight and a maximum lead level of 0.01% accordance with ASTM D520. Organic zinc -rich primers shall be used as galvanizing repair compounds for areas greater than 100 square inc hes.

975-2.4 2 Intermediate Coat: Intermediate coatings must meet Table 975-3 E.

Epoxies must be a cycloaliphatic amine or polyamide.

975-2.4 3 Finish Coat: Finish coating shall provide the color and gloss required

for the completed coating system. A finish coat may be comprised of a single pigmented coating or a pigmented coating with a clear coat.

975-2.4 4. Clear Coat: The clear coat may contain a dissip ating colorant . The

dissipating colorant shall be visible for a minimum of 12 hours after application and shall completely dissipate within 96 hours after application.

975-3 Galvanized Steel Coating System.

Coatings applied over galvanized steel shall mee t the requirements of Table 975-2 with the exception that test panels shall be galvanized in accordance with ASTM A123 prior to application of subsequent coatings. Coatings applied over galvanized steel strain poles, mast arms, and monotube assemblies shall meet the requirements of Section 649 and 975 -4.

975-4 Paint for Galvanized Steel Strain Poles, Mast Arms, Monotube Assemblies,

Conventional Light Pole Assemblies, and Aluminum Poles, Pedestals, and Posts. Paint systems shall meet the color requirements as specified in the Contract Documents. All paint systems shall possess physical properties and handling characteristics that are compatible with the application requirements of Section 649 for galvanized steel and Section 646 and 715 for alum inum. Materials shall be specifically intended for use over galvanized steel or aluminum, as appropriate . Paint systems shall exhibit no loss of adhesion or total color difference (ΔE*ab) greater than 8.0 units for five years after final acceptance as spec ified in 5-11. Cumulative surface area of delamination in excess of 100 square inches will constitute an adhesion failure. Delamination shall be defined as any area of exposed metal surface subsequent FY 2023-24 Return to Table of Contents to hand tool cleaning in accordance with SSPC -SP2. A ΔE *ab value exceeding 8.0 units per the International Commission on Illumination L*a*b* 1976 (CIELAB) space and color difference formula, measured in accordance with ASTM D2244, will constitute a color retention failure. The Department will measure and ente r in the Department’s database the CIELAB color chromaticity coordinates for the color of the top coat of sample coupons provided as required by

649-4.3 using a BYK -Gardner Handicolor colorimeter using D65 illuminant and 2 -degree

geometry settings. The Dep artment-measured CIELAB chromaticity coordinates shall define the initial color and will be used for resolution of color retention failures and the resolution of color retention disputes.

975-5 Elastomeric Coatings.

975-5.1 General: Use an elastomeric coa ting system to provide a waterproof barrier over

post-tensioning anchorages or other areas designated in the Plans. The components of the coating system shall be supplied by a single manufacturer and sold as a waterproof coating system. The surface prepara tion and application of the coating system shall be performed in strict accordance with the manufacturer’s specifications. Upon request, submit a one quart wet sample of each component of each coating system to the SMO.

975-5.2 Physical Properties: The use of an epoxy prime coat is dependent upon the

requirements of the manufacturer’s waterproofing system. The polyurethane chemistry may be either waterborne aromatic (moisture -curing) or aromatic (moisture -sensitive). The elastomeric coating shall meet the requirements in Table 975-4. Table 975 -4 Elastomeric Coatings Performance Requirements Property Test Method Acceptance Criteria Hardness, Shore A ASTM D2240 Between 60 and 90 Tensile Strength ASTM D412 ≥750 psi Elongation ASTM D412 ≥400% Tear Strength ASTM C957 >70 psi Abrasion Resistance H -18 wheels 1,000 gm/wheel ASTM C957 ≤350 mg loss / 1,000 revs. Crack Bridging 1,000 Cycles ASTM C957 System Passes Elongation Recovery ASTM C957 ≥94%

975-5.3 System Modifications for Use on Exposed External Anchorages: Provide the

elastomeric coating system with a 100% acrylic aliphatic polyurethane top coating where required as shown on Standard Plans Index 462-002, or when applied to other exposed external surfaces. Manufacturers of the elastomeric coating system shal l include the acrylic top coating as part of the elastomeric coating system for approval.

975-6 Class 5 Applied Finish Coatings.

975-6.1 General: All coatings shall possess physical properties and handling

characteristics compatible with the application requirements of Section 400. Unless otherwise specified, the color of the finish coat shall meet FED -STD-595, Table VIII, Shade No. 36622, or No. 36642 for uncoated weathering steel bridges. FY 2023-24 Return to Table of Contents

975-6.2 Coating Requirements: Prepare four, 4 inch by 8 inch (except as required

below) fiber cement test panels with a mass of 7 to 9 pounds per square foot of surface area to perform the laboratory tests. Apply the finish coating to each test panel at a rate of 50 square feet per gallon, plus or minus 10 square feet per gallon. Seal the corners of all test panels with a high build epoxy or equivalent to prevent moisture ingress at corners and cut edges. Submit the samples to an independent laboratory for testing. Coating performance shall meet the requirements in Table 975-5. Upon request, submit a one quart wet sample of each component of each coating system to the SMO. Table 975 -5 Class 5 Applied Finish Coatings Performance Requirements Laboratory Testing Property Test Method Acceptance Criteria Resistance to Wind Driven Rain ASTM D6904 No visible water leaks, and if the rear face of the block is damp, the average gain in weight of the three 8”x16”x2” blocks must be less than 0.2 lb. Freeze thaw resistance AASHTO R 31 No disbondment Water Vapor Transmission ASTM D1653; Method B, Condition C WVT≥10 perms Abrasion Resistance ASTM D968, 3,000 liters of sand No loss of coating thickness ASTM D6132 Salt Spray (fog) resistance ASTM B117, 2,000 hours No disbondment Fluorescent UV-Condensation Exposure ASTM D4587, 2000 hours, 4 hours UV, 4 hours condensation No blistering (ASTM D714), cracking (visual), or delamination (visual). chalking (ASTM D4214Method D) rating no less than 8. Fungal Resistance ASTM D3273 Rating of 10, ASTM D3274

975-7 Anti-Graffiti Coating Materials.

975-7.1 General Requirements : Anti-graffiti coatings intended for use under this

specification shall be of a composition capable of preventing the adhesion of and facilitating the removal of acrylic, polyuret hane, and alkyd spray paint. All anti -graffiti coatings shall possess the physical and handling characteristics that are compatible with the requirements of Section 563. The manufacturer shall designate non-sacrificial products as water cleanable in accordance with this Section . Anti-graffiti coatings shall contain less than 5.0 pounds per gallon volatile organic compounds (VOC) as defined by 40 CFR Part 59, Subpart D, evaluated as per ASTM D3960. The manufacturer shall supply the following additional i nformation:

975-7.2 Performance Requiremen ts: For laboratory testing, use flat test panels prepared

in accordance with AASHTO R 31. Outdoor exposure testing will be performed by the Department , if applicable . Submit four , 4 inch by 8 inch fiber cement test panels to the SMO. Panels will be exposed at the Department’s outdoor test site in accordance with ASTM G7. Coating performance shall meet the requirements in Table 975-6. Upon request, submit a one quart wet sample of each component of each coating system to the SMO. FY 2023-24 Return to Table of Contents Table 975 -6 Anti-Graffiti Coatings Performance Requirements Outdoor Exposure Testing – Non-Sacrificial Property Test Method Acceptance Criteria Graffiti Resistance (water cleanable) FM 5-580: 6 months exposure at FDOT test site (2500 psi using pressure washer) Complete removal of solvent based acrylic, and alkyd based spray paint. No delamination or visual defects. Laboratory Testing - Sacrificial Property Test Method Acceptance Criteria Cyclic Weather Testing AASHTO R 31: no salt fog, 95F, 0%- 90% Relative Humidity, 500 hours, alternating RH every 100 hours No melting or disbondment Outdoor Exposure Testing - Sacrificial Property Test Method Acceptance Criteria Sacrificial Coating removability FM 5-580: 6 months exposure at FDOT test site (2500 psi using pressure washer) Complete removal of solvent based acrylic, and alkyd based spray paint from substrate FY 2023-24 Return to Table of Contents EROSION CONTROL MATERIALS SECTION 981 TURF MATERIALS

981-1 General.

The types of seed and sod will be specified in the Contract Documents. All seed and sod shall meet the requirements of the Florida Department of Agriculture and Consumer Services and all applicable state laws, and shall be approved by the Engineer before i nstallation. All seed, sod and mulch shall be free of noxious weeds and exotic pest plants, plant parts or seed listed in the current Category I “List of Invasive Species” from the Florida Exotic Pest Plant Council (FLEPPC, https://www.fleppc.org ). Any plant officially listed as being noxious or undesirable by any Federal Agency, any agency of the State of Florida or any local jurisdiction in which the project is being constructed sha ll not be used. Any such noxious or invasive plant or plant part found to be delivered in seed, sod or mulch will be removed by the Contractor at his expense and in accordance with the law. All materials shall meet plant quarantine and certification entry requirements of Florida Department of Agriculture & Consumer Services, Division of Plant Industry Rules.

981-2 Seed.

The seed shall have been harvested from the previous year’s crop. All seed bags shall have a label attached stating the date of harvest, LOT number, percent purity, percent germination, noxious weed certification and date of test. Each of the species or varieties of seed shall be furnished and delivered in separate labeled bags. During handling and storing, the seed shall be cared for in s uch a manner that it will be protected from damage by heat, moisture, rodents and other causes. All permanent and temporary turf seed shall have been tested within a period of six months of the date of planting. All permanent and temporary turf seed shal l have a minimum percent of purity and germination as follows:

981-3 Sod.

981-3.1 Types: Unless a particular type of sod is called for in the Contract Documents,

sod may be either centipede, bahia, or bermuda at the Contractor’s option. It shall be well matted with roots. Where sodding will adjoin, or be in sufficiently close proximity to, private lawns, other types of sod may be used if desired by the affected prop erty owners and approved by the Engineer.

981-3.2 Dimensions: The sod shall be taken up in commercial -size rectangles, or rolls,

preferably 12 inches by 24 inches or larger, except where 6 inch strip sodding is called for, or as rolled sod at least 12 inches in width and length consistent with the equipment and methods used FY 2023-24 Return to Table of Contents