Soft, 1/4# epoxy stick handles like modeling clay, bonds like epoxy and hardens like steel in 20 minutes Contains no solvents, will not shrink or pull away Repairs manifolds, outdrives and trimtabs, exhaust lines, fuel and water tanks and lines, patches fish boxes, ice chests, battery cases, buckets, seals leaks, makes electrical connections and forms custom gaskets Cures underwater and is effective at working temperatures of 300 F constant or 500 F intermittent Can be sanded, painted, drilled, tapped and filed Will not dry out after opening 1/4 lb