Premium formula for repairing dents, dings, and scratches around your home or on your car faster and easier. High-Adhesion filler works on metal, aluminum, masonry, concrete, and more. Fastest drying Bondo filler cures to hard-to-stick-to surfaces in 15 minutes for fast and quick repairs. Spreads and sands easier than other Bondo fillers for a consistent, smooth, and professional finish. High bond with excellent adhesion to hard-to-stick-to surfaces with excellent vertical hang. Two-part formula chemically bonds and adheres faster to hard-to-stick-to surfaces like galvanized steel. Top coat with Bondo Glazing and Spot Putty is recommended to fill pin holes and small imperfections for a smooth finish. Estimated flash point for Bondo Fast Dry is 231 F (111 C).