Rust Veto® 342 is our industrial-grade version of Cosmoline® and protects iron and steel for years. Rust Veto 342 is used to protect equipment or material stored in sheds for long periods. Its transparent film allows for visibility of any stenciling on parts, making it possible to easily identify any markings on stored items. Use on external parts of machine tools stored outdoors, or motor blocks, dies, farm machinery and other metal items. Use neat or slightly diluted with petroleum solvents, and remove with a combination of solvent and alkaline cleaners.