[Jewelry making - Article 00966] - Re: [Orchid] Tarnish problems while tumbling

[Thackeray Taylor]

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>     however, when I return the pieces to the tumbler to burnish the
>     silver using mixed stainless shot and Rio deburring solution... 
>     there seems to be a chemical or electrical reaction occurring that
>     is causing oxidation on the surface of the silver on testing the
>     solution after tumbling I get an approximate PH of 8 

Dear Jon,

    I'm not sure this is the issue but part of your above statement
    caught my attention. You stated your using deburring solution with
    steel shot? Don't, it's simply not effective. Deburring solution is
    engineered for abrasive media, not burnishing media. Burnishing is a
    non abrasive step so use a burnishing compound, you should see much
    better results. 

I hope this helps.
Respectively,
Thackeray Taylor
Rio Grande Technical Support.

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