NuMetal

Ask and Answer Questions about NuMetal Epoxy Putty. NuMetal Epoxy Putty is an easy-to-use, two-part putty that mixes like clay but hardens like steel! NuMetal bonds, seals, fills, insulates, anchors, caulks and waterproofs. It cures without shrinking or sagging and can be drilled, tapped, sanded, primed and painted. NuMetal will not only stick to damp surfaces, but it will cure underwater!