Aloha, fun & authoritative answers -- no cost, no passwords, no popups
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Metal finishing Q&As since 1989

-----

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] 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

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: