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RE: Useing silicone encapsulants for HV
Original poster: "Mark Snoswell by way of Terry Fritz <teslalist-at-qwest-dot-net>" <mark-at-cgCharacter-dot-com>
Your lucky -- you have Sterling Tech in the UK ...
http://www.sterling-tech-dot-com you should contact them for local outlets
of their materials.
In Australia we can get some of their stuff from AIM (Australian Isola
The cheapest encapsulating resin you will get is the stuff used in the
fiberglass industry -- which is Styrine based. It should be availble
everywhere -- well in all good hardware outlets -- and there are lots of
specailist fiberglass outlets (well there should be. There are here in
little old Adelaide, Australia).
The two part epoxy and Silicone resins are expensive and the US$50 /
0.5Kg is about right. The Styrene based resins are 1/5 the cost or less.
I cut these notes from my lab book -- prices are in A$ and current
Dow Corning SYLGARD 184 0.5Kg $86.45+ 4Kg $540+GST <0.001
disapation loss, water clear, not exothermic
Dow Corning SYLGARD 160 1.4Kg $70+ Grey, best thermal and electrical
properties, dissapation higher then 184, opaque grey.
Finishing Varnish -- Sterling Tech
009-0008 clear 5L $64.13 400G aersol $8.94
VA 42 red 5L $68.94 400 G aersol $8.94 ?
Impregnating Varnish -- Sterling Tech
003-1010 5L $68.51+ stoving to cure -- 50% solids needs 160 deg C
for 4 hours to cure well.
|Any pointers to UK suppliers would be appreciated - the only
|one I can find
|at the moment is RS, and
|their price is UKP30 (~US$50) for 450g, which seems rather a lot....