Eastwood Rust Converter One Quart
Product Review (submitted on April 17, 2010):
Goes on milky, turns purple, then tuns satin/flat black when dry. Final appearance looks like black oxide and is pretty cool looking (paint a whole car with it?). Black coating is very tough and a good "insurance policy" to keep rust from coming back. I used it on the floor boards of my 1958 Chevy Apache after removing all the surface rust and am confidant it'll never rust again.