76308-00462 3M Dynatron Dyna-Glass Short Strand,462,1 Quart (US)

Dynatron(TM) Dyna-Glass polyester filler is reinforced with short-strand fiberglass to create waterproof repairs that are twice the strength of ordinary body fillers. Dyna-Glass can be used in conjunction with fiberglass tape, cloth or mat to repair and rebuild rusted-out metal or damaged fiberglass materials.