Moro blade. derust or etching

[Ian]

Naval Jelly is very acidic and will etch non-rusted steel if left on for long periods, as well as remove the rust. It contains a strong acid (phosphoric acid if I recall correctly) and must be used with gloves, safety glasses, etc. to prevent contact with the skin and eyes. Not a pleasant substance to use and I think too harsh for our purposes, but it works on removing rust from machinery, etc.

Ian

Originally Posted by kino

Has anyone ever used "Naval Jelly" for removing rust , prior to etching, or is it a no-no?