Rust-Oleum® Automotive High Heat Primer SprayRust Oleum High Heat Primer bonds to bare metal and helps create a smooth top coat finish. It is specially formulated to prevent rust and is recommended for use on automotive engines and other metal surfaces which reach intermittent temperatures up to 2000F (1093C). Resists heat up to 2000F Stops Rust formula Any Angle Spray with Comfort Tip FOR BEST RESULTS For maximum protection, top coat with Rust Oleum High Heat paint.