[Jewelry making - Article 01617] - Re: [Orchid] Cobalt Platinum Reviews

[John Donivan]

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>     Those that have to work with it will tell you it's a major pain in
>     the behind. I personally won't touch it unless I absolutely have
>     to. 

    Cobalt platinum apparently casts easily. It's also quite hard and
    takes a good polish - easier to do than Ir/Pt. Beyond that I pretty
    much consider it a plague on the world of metals. 10%Ir/Pt is such a
    joy to work, and cobalt platinum just sucks all the life out of that
    Why anyone would try to sell it as semimounts that require further
    work is beyond comprehension. It could be false, but I heard that
    Stuller some years ago was compelled to offer many of their parts in
    Ir/Pt because of overwhelming complaints about cobalt. It is about
    the sorriest excuse for a platinum alloy as you'll find in the
    world. 

http://www.donivanandmaggiora.com
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