[Jewelry making - Article 00928] - Re: [Orchid] Suitable solder for copper?

[dan . wellman]

========[ Invite a Friend - http://www.ganoksin.com/invite.htm  ]========

>     Google Silfoss a high copper content solder. It is somewhat pink.
>     You will still have to plate the joint if you really want it
>     copper color. 

    Silfos is a phosphous bearing copper brazing rod, usually 15%
    silver. It looks a light copper color unused but turns a gray color
    when used, and a dark gray as it weathers. Just look at most any
    joint in the copper piping on an A/C or Refrigeration system, that's
    the most common usage. It's great stuff, it will even fill a gap
    successfully, holds pressures of several hundreds of pounds, needs
    no flux copper to copper, and is quite durable. It needs flux copper
    to brass and does not work well steel to copper ( the different
    rates of expansion and contraction). 45% silver solder is used for
    copper to steel. 

    But it is not used for color matching copper. Some of the silver
    solders have a yellow cast to them after brazing (especially high
    cadmium containing) and silfos can be pinkish if used with flux but
    none are a good color match for copper and will certainly tarnish
    differently. 

Dan Wellman
____________________________________________________________________
T h e   O r c h i d   L i s t
Open Electronic Forum for Jewelry Manufacturing Methods and Procedures
____________________________________________________________________
Orchid FAQ:
~ http://www.ganoksin.com/orchid/faq.htm
Orchid Archives:
~ http://www.ganoksin.com/orchid/archive
Orchid Galleries:
~ http://www.ganoksin.com/orchid/gallery.htm
Invite a Friend:
~ http://www.ganoksin.com/invite.htm
____________________________________________________________________
Tips From The Jeweler's Bench - Article Archive
~ http://www.ganoksin.com/borisat/tip_sear.htm
The Jeweler's Selected Bibliography List
~ http://www.ganoksin.com/jewelry-books
Buy Orchid Jewelry:
~ http://www.ganoksin.com/shop
____________________________________________________________________
-Unsubscribe:
-Email: orchid-request AT ganoksin.com Body=unsubscribe subject=blank
____________________________________________________________________