Urethane Supply Company's SMC Hardset Filler is a two-part epoxy system that is very rigid when fully cured. It works on SMC, fiberglass, polycarbonate, and any other repair application that requires a rigid, high-impact resistant repair material. It has a working time of 3-4 minutes and will sand in 15 minutes. Resealable cartridge tips means no drying out in the tip. Dispense using a standard caulking gun. No special gun is required. Gray in color. Easy 50/50 mix. Easy to tell when it's mixed because the black side and white side will form a gray finished product. Each cartridge contains 10 fl. oz. (296 ml) for a total volume of 20 fl. oz. (592 ml)
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