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Oxidizing Copper with Eggs
I do a lot of work in copper and I go back and forth between liking it most in its natural shiny state and adding a patina to it so it looks darker and aged. A lot of artists use liver of sulphur to add patina, but I don't have a source close by and I really didn't want the odor and fumes in my house. I don't have a separate shop with a ventilation system so I looked into alternative methods. After much research and discussion on various forums I decided to give the egg method a try. Hard boil and egg and while it is still warm, cut it in a couple of pieces and put it in an airtight container with your item. I have read people stating to not let the egg touch the item, but my egg and item always get jumbled together and I never found it to be a problem. In fact, when I was using the egg method on an item with a very tight weave just leaving it sitting with the egg wasn't working very well so I squished the egg into the piece. I use a ziploc bag to do this so I can keep moving and turning the item to get good coverage. This method takes quite a bit longer then using liver of sulphur, but it gives you more control. In fact, most of my pieces get left in the egg overnight. |

Copper Bracelet After Oxidizing With Eggs
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May, 2012
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