Epoxy Putty mixes in just one minute for permanent repairs to damp, wet areas, and underwater applications. It will bond to most materials such as fiberglass, metal, wood, concrete, glass, and many vinyls. Epoxy Putty comes in a handy 4 oz. roll form with the curing agent encapsulation in the contrasting base material. The unused portion will remain stable for years if protected from direct contact with the air.