Instead of throwing out rusted automotive parts that you know will be hard to replace, use Eastwood Rust Converter to restore their performance. This acidic paint is formulated for panels and parts that have heavier rust but still are structurally intact. By spraying Rust Converter on the surface, you trigger a chemical reaction that turn residual rust into more stable iron oxide. It also forms a paintable black protective coating that is compatible with most topcoats. Last but not least, Rust Converter seals the metal to help prevent future corrosion.