3M 7100314736 | Fiberglass Filler

Bondo Extreme Metal Reinforced Filler is easy to use, yet exceptionally strong for repairing and rebuilding metal, fiberglass and more. Reinforced with aluminum, this filler mixes quickly (hardener is included), cures fast and stays very strong – it won’t rust, and it can be drilled, anchored or tapped for non-structural repair. It has a metallic appearance, great for a range of uses.