[Jewelry making - Article 00013] - Re: [Orchid] Making Bad Molds

[jwryrubber]

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Continue from the:
http://www.ganoksin.com/orchid/archive/200507/msg01234.htm

    concern over washing frames with solvent is a bit over done, as some
    folks have noticed. If you are using the high quality silicones
    based in modern chemistry, such as the 4X Series of silicones from
    Zero-D Products, you have little to be concerned about. Occasional
    washing with soapy water is appropriate, just as you should, from
    time to time, clean all of your lab tools. 

    The lower cost, low quality silicones that are still based in older
    chemistry do require great care when changing over to natural
    rubber. In many cases, solvents may be needed, as these silicones
    leave ingredients on mold plates, etc. The cure process is not
    always complete. Generally, you can see the remnant on the mold
    plates. 

    Do not confuse the foregoing with the need to clean tools used with
    the liquid RTV silicones. In particular, if you use any urethane
    RTVs, clean up well at the point of change over to silicone RTV. 

    Call me if you have questions or wish to evaluate the 4X series of
    silicones. 

Regards,
Bill Mull
Zero-D Products, Inc.
Precision engineered materials solutions
Toll free 800-382-3271 in USA, Mexico and Canada
Phone 440-942-1150
Fax 440-942-2130
WWW.ZERODPRODUCTS.COM

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