[Jewelry making - Article 00319] - [Orchid] Bead blasting to clean castings

[Kathy Johnson]

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Was Bronze casting temperatures

>     The black scale is due to the copper, a dirty metal to cast and
>     weld. We found that a small bead blast cabinet worked VERY WELL to
>     remove any investment on jewelry castings. 

    I'd love to find an easier way to remove investment from castings.
    My ultrasonic never seems to get off all of it. I get really tired of
    standing over a bucket picking out investment with dental picks. I've
    never worked with bead blasting. Doesn't that remove some of the
    detail from the castings? 

Kathy Johnson
Feathered Gems Jewelry
http://www.fgemz.com
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