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 quart covers about 50 sq. foot with a double coat. Can be thinned up to 20% with lacquer thinner for spraying. Contains no isocyanates. Heat resistant up to 400³ F. Made in the USA.