[TheForge] cleaning copper

[Roger Degner]

If you can dip your copper go to Wal-Mart and buy a jug of PH minus powder.
Mix with warm water.  10# should do 50 gal or so of solution.
Use a plastic container
Makes copper a bright pink some scotch bright pad scrubbing may be
necessary.
It is sodium bisulphate which I think is the same as sparex but a lot
cheaper.

Roger R Degner



-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net] On Behalf Of Bruce Freeman
Sent: Tuesday, June 09, 2009 9:42 AM
To: Blacksmithing List Sponsored by ABANA
Subject: Re: [TheForge] cleaning copper


I don't know whether it will work on the flux, but a mild acid solution
generally works well for cleaning copper.  I mix vinegar, salt, and flour to
make a paste and slather it on cookware to clean off ordinary tarnish.  In
your case, muriatic acid might be simpler; a dilute solution would probably
work.

On Tue, Jun 9, 2009 at 9:04 AM, Dave Mudge<dave at magichammer.net> wrote:
> In the shop where I work we have made a copper coil (5/8") 19" 
> diameter, 24" tall. Silver soldered the coil to 1/8' copper legs. Used 
> propane / oxy for heat. Now I need to clean the flux and discoloration 
> from the assembly. Looking for info on the best way to clean it.
> thanks,
> dave mudge
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-- 
Bruce
NJ

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