Multi-Purpose Filler: Versatile Application USC Garage Pouches are your premier single-use solution in the body repair and refinish category, used by DIY’ers and pros alike. From dents and small repairs on aluminum, steel and fiberglass to repairs around the home on wood, metal and plastics. USC Garage Multi-Purpose Filler is a general purpose filler used for repairing everything from wood and cement to metal. Works great for small repairs on cars or around the home