> 3X:Chemistry rust blocker. A clear, high performance coating that protects all metal, fiberglass, wood, and concrete surfaces from rust and corrosion for up to 7 years. Formulated with advanced Nanotechnology, it provides a superior bond to untreated and treated surfaces and can be topcoated with most paints. Rust Blocker protects against oxidation, corrosion, salt spray, weathering, pitting, and more. Ideal for use as an undercoating on suspension, drive lines, and exhaust systems.
