Eastwood Rust Encapsulator has been tested by an independent lab to be the most effective rust preventive product yet. Tested against well-known brands, the Eastwood Rust Encapsulator has proven to be superior in sunlight resistance, preventing rust creep, and overall durability. One 16 oz. net wt. aerosol covers about 10 sq. foot Contains no isocyanates. Heat resistant up to 400³ F. Made in the USA. Buy 3 or more and SAVE over individual pricing.