Sherwin Williams Macropoxy 646 Part “A” Fast Cure Industrial Epoxy/ Black. THIS IS PART A ONLY. Part “B” Hardener will have to be purchased separately from Sherwin Williams before use.
Designed to protect steel and concrete in industrial exposures, Macropoxy® 646 Fast Cure Epoxy is ideal for maintenance painting and fabrication shop applications. The high-solids content ensures adequate protection of sharp edges, corners and welds. This product can be applied directly to marginally prepared steel surfaces.