Bondo Glass Reinforced Filler 1 qt.

3M Short Strand Reinforced Filler is reinforced with short strand fiberglass to create water resistant repairs that are twice the strength of ordinary body fillers. It is a great solution for repairing holes and rust on metal and fiberglass.
.Reinforced with short-strand fiberglass for strong repairs
.Repairs rust-outs and shattered fiberglass
.Use as a foundation under regular body fillers for strength
.Can be used with Bondo fiberglass mat and cloth