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The harsher brands will contain phosphoric or hydrochloric acid which reacts with the iron oxide to dissolve the rust. The difference between a rust remover and a rust stain remover is that a rust remover will eradicate heavier deposits of rust. You will first need to craft 50 low grade fuel before creating the furnace.

The Naval Jelly Rust Dissolver just simply melts away rust from metal surfaces. For now, open the fire. There are several rust removers on the market and this is something you should research properly before you decide which one is the best for you.