[TowerTalk] Re cadwelding

[Earl Wesner]

I have for some time wondered about using what's known as sil-fos, or 
commonly known as _silver brazing rod_. It varies from 15% to just 5% 
silver, the remaining being copper. Has anyone tried this as a 
substitute for cadwelding? I have been a refrigeration mechanic, and we 
use that rod to connect copper to copper or brass joints (with flux) 
rather than sweat-soldering. They are high pressure joints and it seems 
as though it would work well for ground rod brazing as well. Any 
comments, folks?