Sherwin-Williams offers MIL-PRF-22750G Type III, Grade A Seafoam Green High Solids Epoxy, a direct-to-metal (DTM) coating that meets the military specification. The coating is one of the first DTM high-solids epoxies to earn approval from the U.S. Army Research Lab (ARL) in Aberdeen, Md.
The two-component coating can be used in applications that specify either Grade A or Grade B finishes, including Army or Navy equipment requiring weather resistance or for interior surfaces. It offers corrosion resistance and is said to satisfy the ARL’s requirements of performance to a minimum 1,000 hrs. of salt spray and 40 cycles of cyclic corrosion.
The coating eliminates the need for a primer coat, resulting in faster finishing throughput. It is designed for one-coat application directly over zinc phosphate steel or treated aluminum. A primer may be applied under the topcoat, if desired.