Pro Seal Cold Welding Compound was developed by Pacer Technology to provide an alternative to hot welding. Each packet contains a tube of epoxy resin and a tube of hardener. Simple mix the two in equal amounts until a uniform grey colour is reached. Apply this mixture to the area that needs repairing, it will set with an 80% bond strength in 1 hour. A full cure is reached in 24 hours. Ideal for automotive repairs like filling cracks in engine blocks, battery cases and axles to mention a few applications. Also for many other uses such as plumbing, marine, industrial, crafts, hobbies and repairs around the house. Pro Seal N64605 Quick Cold Welding Compound 2oz (56 g) - FAST CURE High quality liquid metal formula Alternative to hot welding Works on brass, aluminium, bronze, castings ,copper and steel Can be drilled, machined and tapped High temperature resistant Working time 3-5 minutes 80% bond strength in 1 hour, full cure in 24 hours Made by Pacer Technology USA Always read safety instructions before use