Re: Can I make PU parts without vacuum casting unit ?

From: Lauren Groth (
Date: Tue Jan 14 2003 - 00:16:24 EET


Should you wish...give me a call and I'll help you out.

However, please visit my web site at so that you have better understanding of our process....before you call.

Lauren Groth

Ultimate Solutions
  ----- Original Message -----
  From: kevin smith
  Sent: Sunday, January 12, 2003 5:45 AM
  Subject: Can I make PU parts without vacuum casting unit ?

  Dear RPListing,

                            I'm looking to make some vacuum casting parts for my project I got master parts. Could someone please guide me for following points (Pl. note I'm looking for advice not for quotation) :

  Is it must to use vacuum casting machine to take the bubble out of silicon rubber mold? I'm seeking for any cheap alternative. I saw many hobby people using home made machines using small vacuum pump for this purpose and using microwave for curing the tool. Pl. share your experience or if any other possibilities.
  Where can I buy raw material for silicon mold and different grades of PU materials to pour in the tool.

  Any difference between RTV and Vacuum casting process ? Any web site dedicated for helping on these processes or book explaining these processes would be highly appreciated. Thanking you.

  Best Regards,
  Kevin Smith

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