Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, mpdickens <md30022@y...> wrote:
> 
> --- Steve <alienrelics@y...> wrote:
>  
> > I  may just pot the high impedance part of the
> circuit > if I can find an epoxy encapsulant that has
> very little 
> > conductance.
> 
> Polyester resin (Epoxy is the trade name for polyester
> resin) has an extremely low conductance. In fact, the
> conductance of expoxy is close to that of glass.

I think you've said this before, but I've never heard that. And epoxy
resin is always listed separately from polyester resin.

Like this site:
http://www.shopmaninc.com/resins.html

I'll readily admit that I don't know what kind of plastic is in epoxy.

> FWIW, here is a something that everybody may want to
> take a look at:
> 
> http://www.alchemetal.com/Characteristics.htm

Fantastic! A conductive castable polymer, can be soldered and
electroplated. I added it to the links under Cases for Projects.

Steve