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Old 07-06-2009, 03:25 AM
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Coppretta Coppretta is offline
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Join Date: May 2009
Location: Huntsville, AL
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I dont know what that coating was on my copper mugs but thinner and paint stripper didn't do a thing to it, I left one in a sealed can of acetone overnight...nothing.

I sprayed on the oven cleaner waited five minutes and rinsed it off...then cleaned it with mild phosphoric acid wash...good as new.

Maybe aluminum is much wimpier than copper?
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