Tim Williams wrote:

"Jon Yaeger" wrote in message
...
1) I don't know of an easy way to join and seal copper without using
solder
or brazing material, which destroys the "virgin copper" look. If you are
painting it with an opaque finish, then no problem.

Try phos copper - low melting point while keeping the appearance. Or weld
(TIG needs a few amps per thousandth thickness due to the conductivity), or
just make your joints tight.

Theoretically you could also use a brass braze and use acid to burn the zinc
out of the surface, leaving it coppery.

2) Copper is fairly reactive and unless protected can corrode in certain
environments in conjunction with dissimilar metals (e.g. steel)

Actually, copper happens to be one of the noble metals

The others being silver & gold. But copper turns green in the right conditions
Yecch!!! Cheers, John Stewart

- in fact steel
provides galvanic protection,

Didn't they use that on frogs legs in the lab? JLS

to the dismay of some old radio chassis which

were copper plated (possibly for solderability?). (Frankenhouse is one
rusting example of this action; all the copper remaining is still pink.
Most of the surface is rough with rust spots crunching though.)

Tim

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