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Phosphoric acid

Posted: Sun Oct 13, 2019 1:58 pm
by LarryM
AC 43 says:
Use of acid-based strippers, chemical removers, or chemical conversion coatings are not permitted on steel parts without engineering
authorization.

And yet I'm still tempted to give my steel parts a phosphoric acid bath before priming. Any thoughts or experience?

Re: Phosphoric acid

Posted: Mon Oct 14, 2019 12:24 pm
by Terry Hand
Have you looked at self-etching primers?