ArtMetalsocial networking for the metal arts |
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FIRECOLOUR portrait -early prototype
colinalexander777 -
Thursday, January 29, 2009 - 12:53pm
copper torch sheet heat patinas refraction light propane | Other Metal Gallery ![]() 1. take clean copper sheet ,brush on a few contour lines with thin water colour brush and very diluted watercolour. This will 'burn off' to black . ![]() Thank you Lin ,
colinalexander777 -
Thursday, January 29, 2009 - 6:32pm
but don't be so sure you're not good at it , I could show you a couple of tricks to make it alot easier . ![]() I am very impressed with
marilyn -
Sunday, February 8, 2009 - 11:30am
I am very impressed with this! When you say to put a sheet of copper in the oven, do you mean a kitchen overn or a kiln? What heat setting for either? marilyn ![]() Just a conventional oven. I
visitor -
Sunday, February 8, 2009 - 12:01pm
Just a conventional oven. I usually have it at 350 , and then take it out when I have the colour I want. The colour sequence the oven puts it through, is this: red , purple , platinum , gold , red-pink , green , and finally dark grey. It takes a bit of experimentation until you are able to get the consistent colours you want , but annealing is just a matter of leaving it in the oven long enough. ![]() I'm surprised that oyu can
Rich Waugh -
Sunday, February 8, 2009 - 5:18pm
I'm surprised that you can get annealing to take place at a temperature that low. It has been my experience that it usually takes more than 500F, even when done for extended soak times, to get copper fully annealed for further hammer work. How soft is the copper when you're finished with the annealing process? ![]() Greying-Annealing
colinalexander777 -
Sunday, February 8, 2009 - 7:21pm
The copper is quite soft after I prime the sheet , almost like lead . If I don't hold it in 2 hands it has a tendency to bend under it's own weight. What is a soak time? Perhaps I am not fully "annealing " it , but I get the desired effect at relatively low temperatures. ![]() Soak time is noting more
Rich Waugh -
Sunday, February 8, 2009 - 9:14pm
Soak time is noting more than the amount of time the metal remains at temperature, in your case a couple of hours. I'm surprised to hear that it seems to fully anneal at that low a temperature, but that's good information to have. Thanks, I learn something new every day! |
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portrait
It absolutely amazes me what you can do with your torch. I have played with a few heat patinas, just enough to know I am not good at it. Your pieces are beautiful! Lin