This specification covers an air drying, ready-mixed, water-borne semigloss latex paint for use on metal surfaces primed with a primer conforming to SSPC-Paint 23. It is intended for use as a topcoat of a water-borne coating system consisting of two coats of primer and one or two coats of this water-borne topcoat.
This paint is suitable for exposures in Environmental Zones 1A (interior, normally dry) and 1B (exterior, normally dry), and is intended for brush, spray, or roller application over properly primed steel surfaces and is to be applied in accordance with SSPC-PA 1, "Shop, Field, and Maintenance Painting of Steel." It is not recommended to expose steel to the weather with less than two coats of waterborne coating; therefore, intermediate and topcoats should be applied as soon as possible.
This paint is based on a latex vehicle produced by emulsion polymerization and appropriate pigments. Details of the composition are given in Table 1.
This paint contains approximately 27% by volume of nonvolatile film-forming solids (pigment and binder). The theoretical spreading rate for a 2.0 mil (51 micrometers) dry film thickness is 215 square feet/U.S. gallon (5.3 square meters/liter). Actual spreading rates can be significantly lower.
