Marine-Tex Epoxy Putty handles like putty, hardens like steel, and sands like wood. Nonmagnetic and noncorrosive, the putty repairs damaged and leaky hulls, dry rot, cracked crank cases, engine blocks, fuel tank leaks, water tanks, and piping food containers. Provides adhesive and barrier coat for mounting anodes on ships. Impervious to oil, grease, brine, detergents, and other chemicals onboard. Will not shatter when bumped. Simple fast and effective. Hardened putty can be sanded, drilled, and painted.