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Finishing Metal Open discussion on finishing sheet metal products. Feel free to share knowledge of a metal finishing products and or your own proven formulas.


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  #1  
Old 09-12-2005, 12:52 PM
workorfish workorfish is offline
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Default Finishing Metal

:? Hi all,was wondering what to use to speed up the patina process on my copper projects.Bird houses,weather vains,ect. Winters here leave me with alot of down time, tring to figure something cool to make for extra $$ Opps,back to the patina question. Looking for something cheap, if thats possible, or the OLD SCHOOL way. I've gottalottalearnin'todo.Thanks
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Old 09-16-2005, 02:29 PM
brasstuba brasstuba is offline
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I seem to recall somewhere that the "old school" way of getting a good patina on copper was to use hot cow's urine. :mrgreen: Not sure that I'd want to go that route, but a sculptor friend who works in bronze swears by it.

I believe that the green patina that occurs naturally is largely copper carbonate. However, an attractive green patina can be created using dilute muriatic acid to produce the chloride.
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Old 09-18-2005, 06:11 PM
tnbndr tnbndr is offline
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Read the following post:
http://www.thesheetmetalshop.com/pn/...=copper+patina

Hope that helps.
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Old 07-17-2008, 10:32 AM
bm1 bm1 is offline
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Quote:
Originally Posted by brasstuba
I seem to recall somewhere that the "old school" way of getting a good patina on copper was to use hot cow's urine. :mrgreen: Not sure that I'd want to go that route, but a sculptor friend who works in bronze swears by it.

I believe that the green patina that occurs naturally is largely copper carbonate. However, an attractive green patina can be created using dilute muriatic acid to produce the chloride.


And how does one obtain the "hot cow urine?"
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