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 gallon covers about 200 sq. foot with a double coat. Contains no isocyanates. Heat resistant up to 400 F. Made in the USA. Use the (13215) Stainless Steel Wire Brush to remove loose rust.