Like our regular Rust Encapsulators, this textured formula seals and stops rust and corrosion from spreading, but it does more—apply it over rusted and surrounding clean metal and it turns it all into a textured surface that hides the rust! Tested against well-known brands, the family of Eastwood Rust Encapsulators has proven to be superior in sunlight resistance, preventing rust creep, and overall durability. Twice the corrosion resistance of our original formula for greater durability (tested to 500 hours in a salt-spray chamber). Eastwood\'s latest \"Textured Finish\" Rust Encapsulator formula can be applied over rusted and clean metal to hide spotty surface rust by giving the whole area a textured finish! Eastwood\'s Rust Encapsulators have been tested by an independent lab to be among the most effective rust-preventive products yet. Rust Encapsulator is a great primer for floor pans and other underbody parts. It fills tiny pin-holes and surface irregularities, and is compatible with lacquer, enamel and urethane topcoats (including Eastwood Chassis Black). For the absolute ultimate rust remedy, first brush or spray-on Eastwood Rust Converter, then prime with Rust Encapsulator. One 15-oz. aerosol covers about 10-15 sq. ft., and contains no isocyanates. Heat-resistant up to 400 degreesF. Made in the USA. Do the job right with Eastwood !