[Jewelry making - Article 00825] - Re: [Orchid] Hydraulic press problems

[poirier]

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Megan,

    Please understand that rubber and urethane are very different
    materials. There are 1000's of types of rubber, and 1000's of
    different formulations of urethane. Each formulation is designed for
    a specific purpose. The formulation we recommend for hydraulic
    forming has properties that allow it to form metals much more
    accurately and consistently with better longevity than other 'stock'
    formulations of urethane. 

    You can buy 'stock' grades from MSC (mscdirect.com) or other
    suppliers, you will be saving a little money now but it will cost you
    more in the long run. "Stock" formulations do not hold up as well and
    you'll be replacing your urethane more often. You will also get
    varied results with the pieces that you form with 'stock' urethane. 

    I am still using urethane I bought over 15 years ago. I also know of
    a University that purchased a great deal of "stock" urethane which
    failed by the end of a one week class. 

    I would highly recommend that you take a class from a qualified
    hydraulic forming instructor. You will gain a vast amount of
    knowledge about urethanes and techniques with regards to hydraulic
    forming. 

Sincerely,
Phil
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