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For you F.I.T.
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all about GRAVY

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daveo

06-03-2003 17:52:08




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F.I.T.

I just finished reading your Interesting & Informative article �Remove old paint with lye gravy� in the June/2003 issue of Green Magazine! Sounds like I can substitute this concoction for the commercial spray-on variety that I�ve been using. Is there any special procedure needed to neutralize the Phosphoric acid wash afterwards?




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F-I-T

06-03-2003 18:12:38




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 Re: for you F.I.T. - all about GRAVY in reply to daveo, 06-03-2003 17:52:08  
Dave:

You must get your GM early !

I let the Phosphoric Acid dry if I'm not going to use the part for a while, because that film helps protect the part. If I'm going to prime and paint right away, I often blast or scrub the surface off with clear water. You can just sand the dried on Phosphoric Acid residue and prime right over it. It doesn't need to be neutralized.

BTW, when you see "Self-Etching Primer" they put some Phosphoric Acid in the primer so it etches the metal as it dries. It also is converting any remaining red rust to black oxide.

I have another article in the hopper on another subject, but I think it might be coming out next month.

Frank-in-Tallahassee
70D // 855

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daveo

06-03-2003 18:39:23




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 Re: Re: for you F.I.T. - all about GRAVY in reply to F-I-T, 06-03-2003 18:12:38  

Very Good!
Thanks! - Next time I need to loosen up paint I'll try this :) I'll be watching for your next article as well.



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