This steel-reinforced epoxy stick seals holes and acts as a powerful adhesive to bond, fill, anchor, caulk and waterproof just about anything! The stick works on wet or dry clean surfaces and even under water to repair steel, aluminum, copper, wood, fiberglass, ceramic, PVC, concrete and more. The epoxy stick can be drilled, filed, sanded, machined, tapped and painted and sets in about 5 minutes. Steel-reinforced putty seals holes, acts as a powerful adhesive Works on clean dry or wet surfaces - even works under water! Repair steel, aluminum, copper, wood, fiberglass, ceramic, PVC, concrete and more Nonrusting, nonshrinking, nontoxic and solvent-free