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Oxidation of copper

OK I'm making frames out of 25 gauge copper sheeting for a school project. I want it to oxidize and turn a little green in spots. I can go that but how do I get it to stop after I have it at the desired oxidation?

Kyle funderburk
COLLEGE STUDENT - Ft. Lauderdale, Florida, USA
2006

Your almost there. Just rinse the desired patina finish in fresh water and let dry. Freeze patina with a coat of Incralac ⇦ on eBay or Amazon [affil link] or similar lacquer finish.

Barry Feinman - Chief Restoration Officer
BarrysRestoreItAll

Carlsbad, California

2006

After heat treating a copper object to bring out the blue, gold and reds, what would be a treatment for this object to keep the beautiful color permanent?

Caroline Montague
artist - Athens, Georgia, U.S.A.
2006

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