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From: amark on 7 Mar 2010 16:54
On Mar 7, 3:09 pm, larryk...(a)raglands.com (Larry Kent) wrote:
> Is it possible to use epoxy or polyester surfboard resin for potting
> audio fequency PCB's?
>
> How about the crystal epoxy used for encapsulating insects, etc?
>
> Any other low cost alternatives, aside from flexible rubber/silicone?
>
> Many thanks,
>
> Larry Kent

Yes. I have seen candlewax (microcrystalline wax from one of the big
oil companies) used to pot a fm microphone circuit. It seemed pretty
practical to me.
From: Joerg on 8 Mar 2010 20:30
Larry Kent wrote:
> Is it possible to use epoxy or polyester surfboard resin for potting
> audio fequency PCB's?
>
> How about the crystal epoxy used for encapsulating insects, etc?
>
> Any other low cost alternatives, aside from flexible rubber/silicone?
>

In the olden days potting tar was used, and often still is. Very cheap
but I wouldn't know a distributor anymore. However, it is not very
pretty if that's what you are after.

--
Regards, Joerg

http://www.analogconsultants.com/

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