3M Bondo Lightweight Auto Body Filler. Quart. Two-part lightweight compound mixes easily and spreads smoothly. Shapes in minutes and is formulated to be a non-shrinking, non-reactive and permanently durable material for repairing metal, wood, steel and plastic. Repairs dents, patches holes and leaks and restores chips quickly and easily. Sands easily, complete autobody projects the same day started and includes cream hardener.