Hi, Many thanks for the video. I trying to make a patina for old brass coins and did some tests whith ammonia in the past without good results. You got good results at Your experiment. My question is does this patina stick strongly to the metal? Will is come of easily by scratching? Thanks!
Hello Shelley, There is no paint involved when making Patinas. When I got "painterly" I simply used a paint brush to move the patina juices around, so they would not pool. Also this offers different patina effects. I hope that makes sense? Nicole.
I have had excellent results making copper patina with the soy sauce and ammonia method, but at the end of the process I want to seal it to protect the patina. I tried spray lacquer but it darkened the lovely aqua patina and turned some of it brown. Any suggestions for a sealant? Much appreciated!
I put patinas on long rifle shells, and then spray them with a shellac, or sometimes just an acrylic clearcoat spray, and they both work well. However, the majority of the shells are brass. There was one copper one once and it still worked… just don’t do it when it’s humid.
yes, cover the fume chamber.... you want it to full with Ammonia Fumes.... I have a sheet of plexiglass over it (instead of the lid), so I can film the patina forming. Cheers, Nicole.
@creatinglinusonlineschoolo8355 copper nitrate crystal water solution "sprayed on with spray thingie" and heat with flame torch will do this in 10min. Your welcome! I have video evidence. Your video is very creative! Love it. How did you make it? You can make copper nitrate by disoloving copper in NH3 (be careful). Leave it over night and wait for chrystals to form... the next morning there will be a solution with chrystals and unreached copper. Take the copper chrystals out and add acid nitric acid until copper has turned to Chrystal. Remember mix the chrystals you have now made with water. Spray! Heat with flame.
This is incorrect. You’re probably confusing this with the dangers of mixing ammonia and bleach, which can produce chloramines (which are toxic). But there is no source of chlorine in a reaction involving ammonia and acetic acid.
