Plastic Steel is an extremely hard, durable epoxy for repairing cracks, breaks and joining parts. Considered by many top gunsmiths to be the absolute best for bedding a stock due to its very hard, yet non-brittle characteristics. Available as a putty or liquid for various applications. Features Bonds to most metals, concrete, and some plasticsCures at room temperature and forms a tough durable metallic mass that can be drilled tapped machined or painted Excellent resistance to oil gasoline water and many chemicals