Autosol, Rust Ex. Bottle 250ccCleans and restores shine on iron; bronze; copper; steel etc. The combination of active chemical ingredients and manual polishing abrasives lead to an unique formulation designed to remove heavy corrosion and staining from most metals; restoring the shine and extending the life of your metal surface. Corrosion inhibitors prevent attack on non corroded parts. Economical and easy to use. Ideal for treating large surfaces.