BondoR Fiberglass Resin, 404, Gallon

Can also be used as a sealer on damaged and rotted wood. Seals concrete, is great on large or small metal rust-outs and joins most surfaces together while creating a strong and long lasting bond. Sandable in less than 2 hours. Compatible with all paints, including gel coat and marine paints. Waterproof. Includes Liquid Hardener. Can be used alone or with fiberglass tape, cloth or mat|Can be used on multiple surfaces including metal, fiberglass, concrete, wood and more|Great on large or small metal rust-outs|Creates a strong and long lasting bond|Sandable in less than 2 hours|Waterproof|Compatible with all paints, including gel coat and marine paints