[TheForge] sealing copper pee patina

[craig.schaefer at verizon.net]

Yeah, but go rub on that patina and it comes right off.  That's how it's not permanent.

CraigS
Gresham, OR


>From: Peter Hirst <saltydog335 at aol.com>
>Date: 2008/02/20 Wed AM 08:35:59 CST
>To: Sponsored by ABANA <theforge at mailman.qth.net>
>Subject: Re: [TheForge] sealing copper pee patina

>I am not so sure about copper patinas not being permanent.  You se a lot of 
>copper roofs that stay a nice green indefinitely, (St Matthews cathedral in 
>DC, for an AMerican example) and I am sure no one is up there periodically, 
>uuh, renewng the treatment.  I have a commper sculpture in my shop yard that 
>was treated in this way that has remained stable for years.   Bears more 
>research, I think.
>
>
>----- Original Message ----- 
>From: "Woolley" <wjec at verizon.net>
>To: "Sponsored by ABANA" <theforge at mailman.qth.net>
>Sent: Wednesday, February 20, 2008 9:00 AM
>Subject: Re: [TheForge] sealing copper pee patina
>
>
>> lee robbins wrote:
>>> Thanks for the copper info. i wondered about the
>>> patina after the cat pee information on steel. I just
>>> got some tung oil for my tool handles and have a
>>> memory of someone using it on steel. Will that also
>>> seal the copper patina more durably than say
>>> polyurethane  or wax? Just letter openers.
>>>
>>> Lee
>>>
>>>
>>>
>> I use tung oil on steel.  Multiple coats will help but certainly not as 
>> tough polyurethane.  You can wax a tung oil finish.
>>
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