Tough rust cleaners
Empire TopSaver, a commercial product, has a solvent-based, penetrating formula that breaks down rust. You simply spray it onto the affected area and scrub with a scouring pad or steel wool. After a minute or two, wipe away the slurry with a clean towel, photo right. If any rust remains, repeat the process. TopSaver's formula also has a sealant that works to prevent rust from returning. Although it removes rust effectively, this product does not get rid of dark stains embedded in the cast iron.
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