Quote:
Originally Posted by sbu22
Deano. I wasn't clear - the home-brew works on carbon steel as well - with all the caveats regarding removing surface accumulations, surface prep, coating systems, etc.
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Oxalic acid is great for removing rust stains and even doing some preparation on steel. But it does nothing afterwards to protect the steel from immediately rusting again. Some other type of coating is needed on steel, preferably in the same afternoon - rust will start forming again immediately.