Fiberweld Automotive repair cast is a high-strength fiberglass wrap, impregnated with a specially-formulated resin for automotive repairs. When activated by water, the product forms a strong, permanent bond that hardens like steel in 15 minutes. Once cured, FiberWeld is temperature resistant up to 400F and holds water pressure up to 100 PSI. The kit includes a pair of gloves and a 2" x 24" securing bandage.