Rust-Oleum Stops Rust® Rust Reformer Spray PaintABOUT RUST REFORMER Stop rust in its tracks with Rust Oleum Stops Rust Rust Reformer. A layer of this flat black coating bonds with rusty metal and instantly transforms it into a non rusting surface. No need to sand down to bare metal, simply spray directly onto rust. Indoor outdoor Durable, corrosion resistant FOR BEST RESULTS Apply several light coats a few minutes apart to prevent running and sagging. AVAILABLE SIZES 10. 25 oz. Spray 8 fl. oz.