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Reply To: | TechNet Mail Forum. |
Date: | Tue, 14 Oct 1997 13:40:17 MST |
Content-Type: | text/plain |
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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
______________________________ Reply Separator _________________________________
Subject: [TECHNET] X-section Mounting Media
Author: "TechNet Mail Forum." <[log in to unmask]>, Richard MacCutcheon
<[log in to unmask]> at INTERNET
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