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Re: Vinegar to prep metal?
Yes, I painted a 67 Camaro in the 90s that my autobody teacher recommended I use metal prep then a conversion coating under my dp40 epoxy. So I guess my real question is how does one clean rust off of metal and be assured it is clean. Sanding can not get into the pits, maybe I'm being too anal about it. Seems like this is a subject that never really has a clear answer.
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