Re: You might be making a bomb by mistake instead of a resin encased cap.,

["william_b_noble" <william_b_noble-at-xxxxxxxxxxxxx> (by way of Terry Fritz <twftesla-at-xxxxxxxxxx>)]

I would suggest using a different potting compound - do not use clear
acrylic - not only is it fragile and expensive, but it fractures - the
potted  HV componenets I've seen are potted in a urethane or slicone plastic
(something that is a bit flexible) - you can buy pourable urethane potting
compound, and it is a whole lot cheaper than clear acrylic
Bill
www.home.labridge-dot-com/~wnoble
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, November 22, 2000 5:37 PM
Subject: You might be making a bomb by mistake instead of a resin encased
cap.,


> Original poster: "Garry Freemyer" <Garry-at-NDFC-dot-com>
>
> >3. I am starting to play around with casting stuff in clear acrylic. I
> looks
> >great, but it's a little too pricey for me to do anything large scale. It
> >also makes replacement very difficult if several components are cast in
the
>
> >same block (e.g., an entire MMC board). (They do make interesting paper
> >weights though.)
>
> snip!
>
> Nice story about the different caps you have made.
>
> I am concerned about the build up of flammable gasses in any air pockets
in
> the capacitor. I am not sure if these resins release flammable gasses but
if
> such gasses do exist and they get mixed into an air pocket and are ignited
> by a spark in the block, it might go up like a bomb! I'd hate to see you
get
> hurt.
>
> The question is does anyone out there know if resins release flammable
> gasses while curing?
>
>
>
>