Thread: Surface rust.......HELP!
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  #20  
Old 01-25-2008, 11:44 PM
65Mark 65Mark is offline
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Join Date: Jul 2006
Location: outside of Seattle, Member - PPOFC
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I was referring to POR 15 on conversion coating, among others. Phosphoric acid is a good etch, as long as you neutralize it completely.

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