Harvey 044210 Epoxy Putty Hardens like steel in 20 minutes Ideal for plumbing, electrical, auto and home repairs Plugs, seals, patches holes and cracks and mends almost anything broken Can be used for underwater repairs Excellent for fabricating or rebuilding parts and for use as an all-purpose adhesive for metals, wood, glass, masonry, ceramics and many plastics. Can be drilled, tapped, filed, sanded and painted like metal