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Vinegar causes flash rust just like you said. I think their is a reason for this when the metal is bare but I am not a body man so I do not have an answer for you on this one, but I am curious also. I have heard blacksmiths use this method also before painting any steel parts. You might try the Paint & Body board.
Last edited by Brewski*; 10-19-2002 at 07:48 AM.
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