[Jewelry making - Article 00844] - Re: [Orchid] Another torch tip

[Gail Smith]

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    Warning! If you are soldering stainless steel to brass, gold, silver
    etc., You need to use HandyFlux B (i.e. "black flux") While it's
    possible to get a join with standard fluxes, the joins are weaker
    and frequently incomplete.  Since leakage is critical, use the black
    flux. Or, use different tubing, gold,silver, or brass.  Black flux
    is a necessity for steel. If you have other tubing, use it. 
    Stainless holds up better, but do you want to buy a flux you might
    not use again? The 3-5$ piece of gold tubing you would use starts
    looking better.  By the by, I've done it both ways: stainless to
    brass and gold to brass.  The gold tip was still perfect after 7
    years when I left my job. The stainless is still good after 10 years
    (I used black flux).  Black flux is also good for soldering eyeglass
    frames- provided they are not titanium. 

Ciao
Gail


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