Heating the treated copper speeds up the oxidation process. The cleaned sheets were then taken outside and sprayed with the acid mixture and placed in the sun to dry. The copper was cleaned and degreased using a lacquer thinner. He then added equal parts of vinegar and ammonia to the bottle, leaving enough room at the top to be able to throughly shake the mixture until the salt was completely dissolved. He filled the bottle with approximately 1/2 inch of salt. Josh started with a clean, quart sized spray bottle purchased at our local hardware store. While there are several chemical compounds you could purchase, Josh used a mixture of common household ingredients: vinegar, ammonia, and kosher salt. The specific form of acid used will result in different color changes within the copper. It is a matter of treating the copper with an acid then allowing it to oxidize. The process of aging the copper so that it gives off that lovely blue/green hue is fairly simple. Josh did a little experimenting and the end result was so fantastic that we decided to share his recipe! All that was needed was a method of aging the copper. He had several scrap pieces of shiny copper in the wood shop.
SA Team member Josh Howe came up with the idea of covering the panels with patina’d copper. Recently, we decided to add a bit more interest to a four panel, round top door that we custom built from cypress wood. Looking for something more unusual? Try out something from this chart of condiment patinas.Southern Accents has an incredibly talented team of artists and craftsmen who are constantly coming up with creative ideas. Want some extremely scientifically precise descriptions with specific chemical compounds? Try this. Not happy with the results? Toss it in with some Sparex pickling solution to remove the patina and try again. This creates a "heat patina" that is typically red with bits of black. Use the torch to heat the copper to a nice red hot color, then quickly quench it in the water and borax solution.
Want red? Grab the torches! Get a pot of hot water and borax (it's in the laundry aisle) solution. Want green? Spray with a mix of 3 parts red wine vinegar and 1 part Miracle-Gro. Want a deeper blue? Try soaking it in a mix of white vinegar and salt. Sprinkle salt on the piece, and let sit for a day or two in a warm environment until it gets to the color you like. Put the piece in a container raised above the bottom, because on the bottom you're going to place a paper towel damp with ammonia. The typical beaten copper patina you find in every home decor aisle is just let it sit in liver or sulfur till it goes black, then sand and polish the high points.Īmmonia and salt create a blue-green patina.
If you're going for an intermediate stage color, I recommend just quickly dunking it between the sulfur and the baking soda solution. Dunk the piece in a solution of water and baking soda to stop the reaction. You can just leave it in until it goes black or remove it early to get a range from brown to purple. If you've seen a black bronze statue or "aged copper" piece, you've seen a simple liver of sulfur patina. Liver of Sulfur is the go to for the aged copper look.
COPPER PATINA GREEN RECIPE SKIN
You're human, you have perfectly normal human skin oils. It doesn't matter how often you wash your hands, or how dry you are. Oils from your skin can leave your fingerprints on the patina, often literally. Highly experienced with copper patinas here.īefore starting these, clean off any oils from the piece with dish soap, then rinse under water, and only touch it with gloves or with it wrapped in a cloth.
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