It is a two part epoxy compound specialty to repairs damp, wet and underwater application. It repairs, rebuilds and bonds to many substances such as fiberglass, metal, wood, concrete, PVC, ceramic and other materials. Aquastick has a work life of 15 minutes. After 16-30 minutes, it will harden and form strong bond to substance. It can be drilled, tapped, machined and sanded when fully cured.