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Keeping copper from turning green

Hello,

I have a cupola with a bright new shiny copper top. I have polished it with Brasso [linked by editor to product info at Amazon]. Can you tell me if there is anything I can apply to the copper to keep it nice and shiny as opposed to turning green?

Thanks so much!

Joanne S

Please provide your full name on any followups Joanne.

A lacquer (clear) will prevent the copper from oxidizing and changing color. You might talk to G.J. Nikolas.

Ted Mooney, P.E.
finishing.com
Brick, New Jersey

I am interested in finding a quick way to oxidize copper to speed the natural process by which copper turns green over prolonged periods...any suggestions?

Erik Andersen

For Erik

Get swimming pool chlorine (stronger than store bleach) and soak the copper for a day or so. Will turn green.

Evan Sax
Newland, North Carolina

For complete info about how to turn copper-bearing metals any conceivable shade, see this great book on patinizing.

Ted Mooney, P.E.
finishing.com
Brick, New Jersey

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