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#11
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How to form patina on brass?
The Complete Metalsmith by Tim...(I can not remember his name) has
recipes for those of us that do not have good storage places for pee buckets and saw dust (which takes a long time to patina, but does have interesting textures). To get green spray with a mixture of ammonia, water, table salt and sal ammoniac; you can sprinkle saw dust on wet surface. Let dry completely with out aid and repeat the spraying 3-4 times. To get blue put in a bag or sealed container like a cooler with a open dish containing ammonia- also rub table salt or salt water on the areas you desire blue. Leave in bag until you get desired effect. He also has recipes for brown, red. You can use a torch to get similar colors to patinas created by liver of sulfur. |
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#12
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How to form patina on brass?
On Wed, 03 Oct 2007 01:31:54 -0700, Abrasha
wrote: Norm Dresner wrote: I have a brass casting that I've used in a piece and need to make it look old and weathered. Are there any household chemicals that will do that or do I need to purchase a specialty chemical? TIA Norm **** on it. If no one else will, I will chime in with "Kitty's litter box for a few days!" Gerry :-)} London, Canada |
#13
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How to form patina on brass?
There were several replies to this query,suggesting exposing the casting to
ammonia,natural or synthetic. Depending on the composition of the brass and the internal stress level, there is a risk of causing cracking. I have not heard of this when the patinating agent was a sulphur compound. Just my twopennerth. G.H.Ireland -- _ _________________________________________ / \._._ |_ _ _ /' Orpheus Internet Services \_/| |_)| |(/_|_|_ / 'Internet for Everyone' _______ | ___________./ http://www.orpheusinternet.co.uk |
#14
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How to form patina on brass?
On Oct 2, 12:12?pm, "Norm Dresner" wrote:
I have a brass casting that I've used in a piece and need to make it look old and weathered. Are there any household chemicals that will do that or do I need to purchase a specialty chemical? Norm, Try this site... http://www.artmetal.com/search/node/aging+brass It may help you out. We were looking to possibly age a small reproduction of a South Bend Lathe dauber we make, (we decided to sell it as a fresh turning instead so not to imply it was the original item). Tim www.alisam.com "A-LEE-SAM" |
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