Has anyone ever used ammonia, nitric acid, or another means to age/darken
copper. If so please share your methods in some detail.
Thanks so much. Jon Francis
Has anyone ever used ammonia, nitric acid, or another means to age/darken
copper. If so please share your methods in some detail.
Thanks so much. Jon Francis
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Replies
Have you looked at page 100 of the current (#170) issue?
I've used patinating liquids from crafts stores to create verdigris.
Janet
Fuming with ammonia turns copper green. Liver of sulphur turns it brown. Can be gotten from Gesswein and Rio Grande.
http://www.compleatsculptor.com is a good source for patina materials and books. http://www.artmetal.com has a forum on finishing that deals with the subject. Do a search on patinas in google as well. Get some scrap copper flashing and do some experimenting to find what works for you. This bartop was done with liver of sulphur and a combination of brown shoe polish and wax was applied after.
Hi Rooky
I used to do stained glass and they have many nasty chemicals to alter the solder and copper. makes it look like old patina.
Check it out
Cheers
Mac
Hi Rooky,
If you heat the copper with a cheap plumbers torch, the kind with the screw on nozzle, and then mist the object with clear ammonia it will produce the green patina. I used this method for copper post caps on my deck railing and it turned out great.
Bill
I used Modern Options "Patina Blue Antiquing Solution" (http://www.modernoptions.com) on a patio table. The solution contains ammonium chloride and copper sulfate. It was easy and has been stable for almost three years.
Janet
rooky - i'm a restoration carpenter and use a product called-JAX- with good results . here's a page to check out
http://www.jaderockshop.com
then scroll down to metal finishes
slainte' bear"expectations are premeditated resentments"
Edited 5/5/2004 7:19 pm ET by the bear
Edited 5/5/2004 7:21 pm ET by the bear
Massive Thanks and appreciation to all those who replyed. You guys are the best.
Jon Francis
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