Rust-Oleum Automotive 2-In-1 Rust Reform and Seal is a specialty rubberized paint designed to provide a protective barrier against corrosion and rust on cars, trucks, RVs and more. Spray seals both rusted and bare metal in a chemical and abrasion-resistant coating. The advanced 2-in-1 formula is perfect for fixing current rust issues as well as preventing any future damage to the vehicle’s underbody and wheel wells. Dries to the touch in 1 hour and covers up to 12-13 sq. ft. per can with rust protection.