CRC Evapo-Rust Rust Remover 13.2 LRemoves even heavy rust completely to bare metal No scrubbing or sanding required Non toxic, non corrosive, non flammable Since Evapo Rust Super Safe Rust Remover is reusable, one gallon will remove 1 2 lb of dry rust Ready to use formula, no mixing required Will not harm unrusted steel, safe on other metals Will not affect plastic, rubber, or non oxide based paints pH neutral Water soluble No fumes or bad odours