Will,
You guys overthere do not have places like Rio Grand or other jewelry supply houses. Grobet (sp) usually is vendor to them. They sell the liver of sulphur in a small can that is chunky pieces. Can here costs about $12.00. I have never used up a can. Usually it will get moisture to it first than it dries out sorta and not good any more.
I usually use a spray bottle to apply my liver of sulphur.
Fill the spray bottle with hot water, than put in a couple of pieces about pea size. The water will look like urine. (Once the water cools the solution is not any good anymore and you have to make a new batch.) Spray onto the copper and just let it set. If the copper is warmed it will react faster but you do not want it too hot. I work with a large propane torch in one hand and the spray bottle in the other. You will have to blend in some and try not to get runs. After wards if you rinse it will sometime help to smooth out the color. After dried I take the inside of a blue jean and rub. When making a real dark brown from a stronger mixture you will get what I describe as a leaded look....like a film. The blue jean material will polish this off. If you are applying a lacquer or a wax it will make the patina even darker so do some test pieces to get the darkness you want. Have fun.
Just curious how are you cleaning the tree before patina?
warren
http://www.metalrecipes.com
Jewelry supply house
Will,
You guys overthere do not have places like Rio Grand or other jewelry supply houses. Grobet (sp) usually is vendor to them. They sell the liver of sulphur in a small can that is chunky pieces. Can here costs about $12.00. I have never used up a can. Usually it will get moisture to it first than it dries out sorta and not good any more.
I usually use a spray bottle to apply my liver of sulphur.
Fill the spray bottle with hot water, than put in a couple of pieces about pea size. The water will look like urine. (Once the water cools the solution is not any good anymore and you have to make a new batch.) Spray onto the copper and just let it set. If the copper is warmed it will react faster but you do not want it too hot. I work with a large propane torch in one hand and the spray bottle in the other. You will have to blend in some and try not to get runs. After wards if you rinse it will sometime help to smooth out the color. After dried I take the inside of a blue jean and rub. When making a real dark brown from a stronger mixture you will get what I describe as a leaded look....like a film. The blue jean material will polish this off. If you are applying a lacquer or a wax it will make the patina even darker so do some test pieces to get the darkness you want. Have fun.
Just curious how are you cleaning the tree before patina?
warren
http://www.metalrecipes.com