Well this proves to be an interesting topic for me. I just completed a larger (for me) order of 14 k gold bracelets, twists, with silver ropes. And to join the silver to the gold I used H 4-45 Silver Solder, 1235f flow 1260f, for flux a Batterns type of generic flux. This is what I have done since my father showed me what to do 30+ years ago. When asked why silver solder and not gold he felt that the silver would polish off the gold easier than the gold would polish off the silver. Also since I was attaching 20ga silver ropes the concern was the gold migrating up the the rope twist and just not looking right. And the gold solder was more expensive which could very well have been there entire reason and the rest was smoke.
Dad was mostly self taught but he was given the basics from a Cherokee Smith on the Chilocco Reservation in Oklahoma during WWll. I learned the basics from Dad as I guess Rob did too. Mostly polishing I think. I probably do a lot of procedures that would make Jo, Ted, or Jim absolutely cringe but the end result is perfect for my purposes.
Experimentation is where I learn the most useful techniques. And every now and then I have to teach myself to solder all over again too.
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