FiberWeld 2″ x 36″ Automotive Repair Cast Automotive Repair Cast

J-B Weld FiberWeld Automotive Repair Cast is a high-strength fiberglass wrap, impregnated with a specially-formulated resin. 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 400°F and holds water pressure up to 100 PSI.