3M 00404, Bondo Fiberglass Resin, 0.9 Gallon, 7010309274

Bondo Fiberglass Resin is a strong material commonly used for autos, boat building and other repairs. This high-strength polyester resin can be used with fiberglass mats or cloths on surfaces including fiberglass, wood, metal and masonry to repair metal rust-outs and to recreate or join surfaces. It can also be used by itself as a wood or concrete sealer. It accepts nearly any paint system.