Epoxi-Putty is a kneadable steel reinforced epoxy putty that cures rock-hard within minutes of mixing. It is extremely tough and durable and adheres to a wide range of metals. After 3 hours, Epoxi-Putty can be drilled, tapped, filed, etc. and will withstand temperatures up to 500 degrees Farenheit. When stored unmixed, this product has a shelf life of three years. This product can also be used for automotive and marine repairs such as engine blocks, manifolds, gas tanks, radiators, batteries, stripped screw holes, exhaust systems and plastic repairs. Two ounce resealable container. Sold each.