Brunox Epoxy Rust Converter Metal Rust Remover forms a metal-organic iron complex with iron and rust. Brunox Metal Rust Remover is a patented rust converter and primer in one. It is the world's first rust renovator and primer with epoxy resin. Developed for industry, crafts, and the demanding DIY enthusiast. This 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.