Patented rust converter and primer in one, the world's first rust remover and primer with epoxy resin, the original from the spray can. Developed for industry, crafts, and the demanding DIY enthusiast. Rust is neutralized. BRUNOX® forms a metal-organic iron complex with iron and rust. This resulting black, very compact, and resilient protective layer provides long-term corrosion protection and, thanks to the enrichment with epoxy resin, also serves as a primer.