On Tue, 11 Nov 2008 08:45:16 -0800 (PST), "Tim Nash (aka TMN)"
You'll be very lucky indeed if the plating isn't affected by the
silver soldering - though a careful hand and a low melting point
solder will help matters considerably. A lot depends on the job itself
- how small/large it is.
Steve ( out in the sticks )
Email: Take time to reply: timefrom_usenetgmx.net
Depends - you don't need to use cyanide, but for chemical stripping you
pretty much do need to use acid, usually nitric, sometimes with
sulphuric acid added. About the minimum you can get away with is 20%
nitric acid. That's not life-threatening to me, but it might be to you.
As it's only small stuff, if you want you can post it to me and I'll
strip it for you, no charge. Please include return stamps though.
It is possible to do an electrochemical strip using slightly  less
aggrssive chemicals, but can I ask why, and what you expect? Silver
often plated over copper, it might turn copper-coloured.
If you intend to replate then just send it to the platers, they'll strip
it in a jiffy.
 one of the functions of cyanide in a plating bath is to dissolve the
silver electrodes, so don't go hoping for too much here - aggressive
chemistry is still needed!
I don't know about oxidation, but Tippex, as I have mentioned before, is
good to prevent the flux or solder from wetting parts you don't want
wetted. And once heated to brazing temperature, it's quite easy to
remove, it just brushes off
(Actually it's quite easy to remove anyway -- ??)
-- Peter Fairbrother
These are parts of an lamp I am making for my daughter - after taking
what has been said into consideration I will do the silver soldering
and then send it to the platers to dolly it up.
Peter - thanks for the very kind offer but I am in South Africa !!!
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