How To Patina Copper Brown. 5 out of 5 stars. A popular option is household ammonia as it works on both brass and copper.
A thin layer of copper sulfide is formed on bronze surfaces. After about an hour, remove the item from the plastic and apply the patina.
Aged Copper Plate Texture With Green Patina Stains Old
After washing off all of the dish soap, sprinkle a small amount of baking soda onto both sides of your bracelet and scrub it well with your steel wool. Applied cold, this patina will develop a copper color on steel and a grey finish on zinc.