[Jewelry making - Article 00019] - [Orchid] Pre finishing gold casting

[jattrading]

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hello,

    i'm getting my first 18k gold ring from the casting shop next week.
    just a casting with no finishing work. the setting has a series of
    domes going along the length of the band (is very contoured). 

    ive been reading that pre finishing these surfaces after filing, is
    best done with natural bristle brushes & also the newer concept of
    the 3m bristle brushes rather than abrasive paper so as to avoid
    flat spots. do most goldsmiths now prefinish every surface with the
    3m bristle brushes or is this just the way to go for highly curved
    contoured pieces. if so, are they as good as each other as far as
    results go, or are the 3m bristle brushes superior can a natural
    bristle hand brush with polishing compound be used for prefinishing
    (i'm thinking a big no). 

    sorry about these beginner questions & thanks for any replies & help
    offered. 

joel
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