Letter 15080

Chemical needed to anodize or oxidize copper to a black color  

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I would like to know if there is a chemical that a lay person could use at home to anodize or turn copper or brass to a black color. This is strictly on a home use or hobbyists concern. Thank you for your time.

Barry A. Veet
- Hazleton, PA, USA

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I think you're using the wrong word in saying "anodize"; look up 'patina' instead (right on this site, even).

 
Ted Mooney, P.E.
finishing.com Inc. - Brick, NJ

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