Too Much Green Patina on Chimney

May 8, 2009

We just added patina to a new copper chimney and it is bright green. We were seeking more of a mix of subtle green and bronze tones that appears to be naturally aged over time. How do we fix this? We would appreciate any help.

Thanks,

JJ

Joe Huston
Contractor - Bentonville, AR, USA

Talk to the people that you bought the copper from and the people that you bought the patina from. You might be able to go over the green with a light coat of brown or bronze...In time, it probably will start turning brown. Time is measured in years.

James Watts
- Navarre, Florida
May 13, 2009

Remove patina and then try next process-step 1/2-5% liver of sulfur ⇦ on eBay or Amazon [affil link] solution, paint or spray it on, step 2/try ammonium carbonate and ammonium chloride solution(250 gm each/1 lit water)-less carbonate more chloride more yellow hue, less chloride more carbonate more blue green hue.Step 2 must be repeated several times.Try it on some scrap first.Hope it helps and good luck!

Goran Budija
- Cerovski vrh Croatia
May 20, 2009

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