The information presented here refers specifically to copper and I cannot vouch for the effect the processes have on other metals. Most jewelry makers are not content to wait on nature and use some type process on metals. These changes can be natural, occurring over time, or we can hurry them along. On metal, patina is a coating of various chemical compounds such as oxides or carbonates formed on the surface during exposure to the elements ( weathering). is a tarnish that forms on the surface of bronze and similar metals (produced by oxidation or other chemical processes) a sheen on wooden furniture produced by age, wear, and polishing or any such acquired change of a surface through age and exposure. The following information from Wikipedia explains the terms used herein. I can’t even get exactly the same results two times in a row! I think you probably have the picture now and can accept this as my disclaimer that you may not get the same results that I have obtained. Variables, among many other things, may include the temperature and amount of the liquid used, how much the liquid is diluted, the temperature of the environment, the amount of time the copper is exposed to patination and the condition of the copper. For example, if you want all the parts of a handmade chain, including the clasp, to match, you will want to patina them all at the same time. If you want several pieces with exactly the same patina, I highly recommend that you do them all at the same time. I’d like to share with you the things that work consistently for me.Īt the outset, I should make it clear that variables will affect the patina achieved. My problem was that I either couldn’t get the patina to work appropriately in my conditions or the patina recipe required chemicals that I had never heard of, couldn’t locate and didn’t really want to use.
I quickly learned that there is a plethora of information regarding this topic both published in books and magazines as well as available online.
Enamored by the beautiful pieces other artists create, I set out to find some answers.
I’ve been playing with altering the color of copper for a couple of years.
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