On May 19, 8:01 am, (Peter Ashby) wrote:
You want Sylgard, a pourable silicone resin, comes clear and can be used
to encase electronics. The only problem with it is it helps to degass it
after you mix in the activator, you can rig up decent vacuum with
Vernouli type device attached to a tap. It is very thermally resistant
and has excellent shock absorption properties. Might not be good for
airflow though.

Peter
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Thank you. I will check sylgard out.