2010 Construction and Material Specifications - Ohio Department of ...

708.02
2. Material Quality Assurance. Material Quality Assurance will
conform to the requirements of Supplement 1084.
D. Urethane Finish Coat. Provide a two-component urethane finish coat
composed of a polyester and/or acrylic aliphatic urethane and suitable for use as a
finish coat over the white epoxy polyamide intermediate coat. The coating shall
also meet the following:
1. Physical Requirements.
a. Finish, Specular gloss, ASTM D 523. Use Fed Std 595B-16440
Gray: 70 % minimum after 3000 hours weathering resistance. Color change less
than 2.0 E*, (C.I.E 1976 L*a*b*) ASTM D2244.
b. Volume solids, ASTM D 2697. 42 percent minimum.
c. Curing time, at 77 °F (25 °C) and 50% RH. Set-to-touch,
ASTM D 1640: 30 minutes, minimum; 4 hours, maximum.
d. Pot life. SSPC-Paint 22, Section 5.5 with the following
exception: 4 hours minimum at 77+/-3 °F (25+/-2 °C) with no evidence of
gellation. The coating shall be in a free-flowing condition and easily sprayed
e. Volatile Organic Compounds (VOC), maximum, ASTM D
3960. 2.83 lb/gal(340 g/L), as applied.
f. Colors.
(1) Specified. [2]
Brown FS-595B, 10324
Green FS-595B, 14277
Blue FS-595B, 15526
[2] Contractor’s choice unless specified on plans
(2) Elective. As specified on the plans.
g. Gloss requirements, ASTM D 523.
Full gloss minimum 80% unless specified on the plans
Semi-gloss 30 to 45%
Lusterless (Matte) maximum 6%
2. Material Quality Assurance.
Material Quality Assurance will conform to the requirements of Supplement
1084.
Performance Requirements. Test the coating system, which consists of the
organic zinc prime coat, the epoxy intermediate coat, and the urethane topcoat,
prior to use.
Prepare three panels for each of the specified tests according to ASTM D 609,
except provide a minimum thickness of 1/8 inch (3 mm) and use ASTM A 36/A
744