The original, premium all-purpose reinforced body filler. Repairs rusted-out areas, holes, tears and cracks on metal, wood and fiberglass. Combines resin and chopped fiberglass, giving Duraglas superior strength over ordinary plastic fillers. Can also be used with fiberglass cloth to cover large holes in a fraction of the time it takes to weld in a patch. Rustproof and waterproof. With White Cream Hardener.