This specification covers white or colored silicone alkyd paint suitable for the finish coat on primed structural steel.
INTENDED USE: The specification covers a high grade air dry silicone alkyd type copolymer gloss and medium gloss enamels intended for use on primed metal but particularly on smooth exterior metal. It is highly weather resistant and is characterized by excellent color and gloss retention. This coating is primarily intended for spray application, but may also be applied by brush or roller. It is to be applied in accordance with SSPC-PA 1, "Shop, Field and Maintenance Painting of Steel."
The color of the enamel specified in the procurement documents shall match that of the standard color chip in FED-STD 595 or other colors agreed upon.
Two types of paint are available under this specification: Type I covers high gloss and Type II covers medium gloss silicone alkyd white or colored paints. Twelve colors are described under each type in this specification.
This paint contains a minimum of 60 to 67% by volume of nonvolatile film-forming solids (pigment and binder). The minimum theoretical spreading rate for a 1.5 mil (38 micrometers) dry film thickness is 640 to 720 square feet/U.S. gallon (15.7 to 17.6 square meters/liter). Actual spreading rates can be significantly lower.
