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Cleaning carbon brushes

We want to clean carbon brushes (metal graphite} which contain copper. They get tarnished due to oxidation. what would be the best solvent or chemical to clean them. will the bright dipping process for copper work for them.

G.S.ARORA
automotive - DELHI, DELHI, India
August 21, 2008

Ed. note: This RFQ is outdated, but technical replies are welcome, and readers are encouraged to post their own RFQs. But no public commercial suggestions please ( huh? why?).

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