Dear Mr. MacCutcheon,
        I am using a similar material to the one you use. My problems with
     it are poor edge retention, and shrinkage. It also is rather viscous
     and does not consistently fill all holes. The better choice for these
     properties is epoxy. The problem there is the 6-8 hour cure time and
     this is why I have not gone to that material.
        I saw once long ago, that epoxy placed in a pressure chamber will
     squeeze the liquid into the tightest blind cavities. The plant I saw
     this at has been closed for years, but I remember they were buying an
     inexpensive epoxy resin from a local company. It was on the order on
     1/10 the cost of other systems. It was amber and glass-clear.
        I do not remember the pressure used (this would also heat the
     sample). I do not remember the time it took to cure. It was longer
     than the acrylic and thus did not interest me (at that time). At this
     time I would gladly accept double or triple the cure time (up to 1.5
     hours) to realize the benefits of epoxy.
        This does not exactly give you an answer, but I have been meaning
     to ask this list about pressurizing epoxy and have taken the occasion
     of your inquiry to do so.
        Does anyone have any information on pressurizing epoxy to cure
     samples?
     Thanks
     Rich



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Subject: [TECHNET] X-section Mounting Media
Author:  "TechNet Mail Forum." <[log in to unmask]>,          Richard MacCutcheon
<[log in to unmask]> at INTERNET