Rust Check Rust Converter. Rust Converter quickly converts rusted surfaces from all metals to a paintable primer. Is ideal for use on automobiles, trucks, bicycles, tools, barbecues and all metal rust. This formula leaves a protective coating that inhibits further rust formation and prepares the surfaces for paint. Give old metal new life with Rust Check Rust Converter. This time-saving rust converter, in a 283-g aerosol can, swiftly transforms rusted surfaces on all metals into paintable, primed surfaces. No need to clean residue off bare metal before use. Ideal for rusted areas on vehicle undercarriages, boats, trucks, tools, etc. Offers a quick dry time of 20-30 minutes. The product weighs 283 g (10 oz).