Polyester resin with long strand fiberglass reinforcing fibers mixed in. Gives great structural strength for repairs of fiberglass and sheet metal. Best known for its bridging capabilities in rebudiling shattered fiberglass and for reinforcing torn or rusted areas of sheet metal. Formulated with long strands of chopped fiberglass. Double the strength of standard fillers. Waterproof. Rustproof. Can be used with or without fiberglass cloth or mat. Blue cream hardener included.

Quart can.