I disolved as much salt as I could in a cup of vinegar. I'm not an expert on chemical reactions, but this method worked for me. This response submitted by Kevin on 1/17/05 at 8:52 AM. If you had been sober during the exercise, you would have noticed the dumpster was already painted GREEN! Of course, you are confusing peeing on a Dumpster at midnight with true patinas. The problem with that is the patina imparted by soaking bronze in vats filled with cow urine and sawdust is a rich brown, and not the green the poster requested. Of course cow urine is used for the purpose, and the break-down (ammonia cycle) seals and purifies the stain. ( ) 4.252.241.242Īlex, that may have been a left-handed joke, but uric acid is used to impart patinas on bronze, copper and brass. Urec Acid This response submitted by cur on 1/16/05 at 10:41 PM. Just pee on it and leave outside 24 hrs, presto! Many of us have done so much, with so little, for so long, that we can now do everything with nothing.Glad I could help.įaster patina This response submitted by Alex on 1/16/05 at 8:24 PM. That is because This response submitted by cur on 1/16/05 at 7:26 PM. The plethora of knowlege that can be found here will never cease to amaze me. ![]() Thanks cur This response submitted by G-man on 1/16/05 at 7:20 PM. Rinse HCL off with distilled water and sponge it up. ![]() Use HCL in 10-20% solution to clean and etch all CU3 from the copper before applying patina. Muratic acid will clean it.LOL, as if you didn't already find that out. Here ya go This response submitted by cur on 1/16/05 at 7:07 PM. Use HCL in 1-20% solution to clean and etch all CU3 from the copper before applying patina. You can also dilute the mixture with water to achieve pale greens and deepen by adding additional coats. You can apply with a brush to achieve a more uniform effect. 'At's what I use for deep green patina on copper. Warm the copper base and the mixture to about 180Fįor color variation, place in boiling water after drying. Here ya go This response submitted by cur on 1/16/05 at 7:04 PM. ![]() Return to The Taxidermy Industry Category Menu I did a copper sculpture for a fish base and want to patina the copper to get the green look,verdegris I think its called.I tried muriatic acid and it did nothing (20%) Do I need hydrochloric or sulfuric? (I know muriatic is diluted hydrochloric hence the 20%)or is there something else?Thanks for any suggestions. How to patina copper? How to patina copper? Submitted by G-man on 1/16/05 at 3:43 PM.
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