Alteco Epo Putty is a versatile two-part epoxy compound. When two parts are mixed thoroughly together, Epo Putty adheres to most surfaces and will not sag, run or drip. It works on concrete , brick, metal , marble , plastic, wood, glass, fibreglass and even if surfaces are under water. It can be molded into any shape and harden underwater. When hardened, it can be drilled, filed , sanded and painted.