It produced a nice dark brown patina that would work well for vintage pieces.
How to patina copper brown. Potassium sulfi de liver of sulfur mixed in tap water 14 lb. Our company Barrys Restore It All Products created a kit just for folks with your issue and makes you your own professional refinisher. Re-immerse and repeat process after 2 min.
Hot baking soda and water solution wine soft water coffee I even hear urine works although I wouldnt recommend it for obvious reasons. In this patina process tutorial we contrast the effects Deep Brown and Darkening Patina. Add baking soda to hot water until it will no longer dissolve and fill spray bottle with this darkening solution.
This copper oxide from reaction 2 is the main culprit that will later form the colors of the patina. The two other liquid tests water and ammonia did not have any change after 1 hr. It does not need to be diluted before use.
Copper sulfate patina creates a brown finish as a hot patina on bronze brass and copper. Sprinkle a generous amount of salt over the ammonia-soaked towels and then set your bracelet on top of them. Spray on the area you want to patina and reapply every 1-2 hours until you get the color you want.
To age copper wipe down the surface of the entire piece with a lint-free cloth to remove any oils and dirt. Place the object into a plastic bag to create humidity. You need to dissolve baking soda in boiling water until it wont dissolve any.
Spray item with darkening solution. I start by sanding the copper sheets with 220 grit sand paper. Spray the copper with window cleaner then coat the item with the aging compound.

