Castable Porous materials

Date: Thu Aug 20 1998 - 17:40:37 EEST

To RP-ML list;

I am looking for a castable material that will result in a rigid, porous
matrix that can be used as a vacuum forming die.

My approach is to make RTV impressions( positives and negatives) from a
variety of customer geometry's and then cast the porous "dies" off of these

I would appreciate any recommendations on materials or procedures.

Larry Whitaker

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