[Jewelry making - Article 01673] - Re: [Orchid] Rhodium plating without nickel under plate

[Thackeray Taylor]

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Hello all,

    In my experience rhodium is one of the more difficult solutions to
    master. I'm by no means a chemist but I can tell you that rhodium is
    very acidic and is contaminated by the copper in sterling which will
    leach into the rhodium. Use a high karat gold handling wire or
    stainless steel, if using copper be very sure it is also nickel
    plated. When trouble shooting with customers I can tell you that
    cleaning is the most over looked, taken for granted step(s). A small
    particle of rouge will also quickly contaminate rhodium.
    Additionally, keep in mind that Elecrocleaner is a Base, so be sure
    to always use Acid Dip after the Electrocleaner because it will also
    negatively effect your rhodium solution. One last point and I'll quit
    babbling, each solution should have it's own dedicated distilled
    water rinse. "Always have two beakers and beaker covers for each
    solution" is what I tell my customers. 

Hope this helps,

Thackeray Taylor
Rio Grande Technical Support
800-545-6566
505-839-3000 ex 13903
technicalsupport AT tbg.riogrande.com
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