Re: Kind/Brand of Primer to use after Phosphoric A

Posted by CNKS on September 13, 2005 at 07:12:02 from (204.249.178.138):

In Reply to: Kind/Brand of Primer to use after Phosphoric Acid posted by Dave in CT on September 13, 2005 at 07:00:03:

What I usually do with such products is use a scotchbrite pad, or similar product and remove as much of the residue as possible. I then treat with wax and grease remover -- I use PPG DX330. I also use PPG Omni MP 170 epoxy primer. Whatever you do don't use etch primer after a phosphoric acid treatment -- there is the possibility of too much acid. I have not yet painted over "Must for Rust", although there are some parts ready to paint. Thus far I have only used Picklex 20, I don't think there is much difference except for cost, but I don't know the formulations -- My guess is you will be fine. As far as breaking up the finish, if you paint it within a reasonable amount of time after scuffing or sanding, it shouldn't be a problem, as the epoxy seals the metal and prevents moisture from getting in. That is one advantage of epoxy primers, they are waterproof, other primers aren't.

Follow Ups:

• Re: Kind/Brand of Primer to use after Phosphoric A Dave in CT 07:37:39 09/13/05 (6)
  • Re: Kind/Brand of Primer to use after Phosphoric A CNKS 10:56:34 09/13/05 (3)
    • Re: Kind/Brand of Primer to use after Phosphoric A Dave in CT 11:53:41 09/13/05 (2)
      • Re: Kind/Brand of Primer to use after Phosphoric A CNKS 12:28:44 09/13/05 (1)
        • Re: Kind/Brand of Primer to use after Phosphoric A Dave in CT 12:48:25 09/13/05 (0)
  • Re: Kind/Brand of Primer to use after Phosphoric A Tim...Ok 08:08:59 09/13/05 (1)
    • Re: Kind/Brand of Primer to use after Phosphoric A CNKS 10:59:12 09/13/05 (0)

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