It can be used to repair, reconstruct, fill, seal, fill metal, iron, aluminum, copper, brass, bronze cast iron, lead and hard plastics. Repair tubes, valves, tanks, engine parts, metal tools, air ducts, bike parts, motorcycles and cars. Ready to use. Strong, easy, Fast. Applicable also in the presence of water leakage. It also adheres to wet surfaces. It does not retract during hardening.