Thread: Finishing Metal
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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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