Quote:
Originally Posted by DannoXYZ
Naval Jelly (phosphoric acid) and Evapo-rust, which I suspect uses phosphoric acid as well due to grey coating at end, is much better due to eating away only rust and leaving good metal alone.
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The label on Evapo-Rust says it contains no acid. Its MSDS says it is a chelator. Now that MSDS don't have to actually say what's in the stuff in question, we have to guess. It's apparently non-toxic, and seems to work pretty well.