VHT Rust Convertor destroys rust on contact. It sprays on clear & turns to a black metal-protecting coating to prevent future rust from forming. Specifically formulated for application over metal, body filler or fiberglass, Rust Convertor sands to a smooth, even finish. Dry Time: Allow 24 hours before applying top coat. Applications: Rusted Metal Surfaces Net Weight: 11 oz. Finish: Flat