[Jewelry making - Article 01437] - Re: [Orchid] Beware - Orange Peel on Palladium

[Paul Finelt]

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Thomas.

    Orange peel is generally the result of large grain size. If the Pd
    parts were over annealed or not sufficiently worked to reduce the
    grain size, the 'plating' might just be 'bringing out' the coarse
    underlying structure. Sanding and repolishing won't eliminate the
    structure at this point. If you put a very heavy/expensive rhodium
    plating you might cover the large grain structure. 

    Palladium will require some adjustments to your shop practice. Does
    that make sense? All (precious) metals are not created equal. 

    EVERYONE should check out
    http://www.ganoksin.com/borisat/nenam/950Palladium-earrings.htm and
    http://www.palladiumcoins.com if you are doing any work in palladium.

Paul Finelt
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