15 OZ, Black Rubberized Undercoating, An Easy To Use, Black Protective Coating, Protects Metal Surfaces From Corrosion & Moisture, Trusted Rust Preventive Formula Provides A Barrier From Rust On Cars, Trucks, Trailers & Other Recreational Vehicles, For Best Results Apply 2 Coats, Resists Rust, Rubberized, Paintable.