Easy-to-use two part putty that mixes like clay but hardens like steel. For bonding, sealing , anchoring, filling, caulking & waterproofing. Cures without shrinking or sagging. Sand it, drill it, tap it, prime it, paint it! Adheres to metals, plastics, fiberglass, & primmed surfaces. Comes in Black, White & Tan. 1 lb. packages