AutoSol Marine Rust ExAutoSol Marine Rust Ex Heavy duty Autosol Rust Ex Marine effectively removes severe corrosion and discoloration from most metals, restoring luster and providing long lasting protection against further damage. Chemical compounds and polishes remove unsightly damage, leaving a restored and shiny finish. This economical and easy to use polish is ideal for use on larger surfaces, including iron, bronze, copper, and steel, and is certified marine safe and