Rust-Oleum Rubberized Undercoating Spray applies easily and dries to a soft, rubbery finish that helps reduce road noise while also protecting against moisture, rust, road debris, and more. Features Use on vehicle underbodies, wheel wells, trunks, boat trailers, and more Unique solution also deadens sound for a quieter ride Strong formula rubberizes for great corrosion resistance Paintable for a custom finish Corrosion and abrasive resistant