>Why not make your own conductive epoxy. Regular epoxy mixed with copper
>powder.

For some reason this is done with silver powder usually. Maybe copper
reacts with the epoxy, its sufrace oxidizes and looses conductivity. Once I
have tried antimony powder instead and it worked, but that is not advisible
due to antimony toxicity.

I had good results with another conductive glue - polysterene (or styropore
- foamed polystyrene) dissolved in acetone and mixed with graphite powder.
As graphite source I used a pencil refil, heated it in the stove to burn
the wax off and then ground with a razor. Hopefuly I have all the words right.

Josef


======================================================================
Electronical devices for chemical laboratory, custom electonics design
----------------------------------------------------------------------
Snail Instruments                     Josef Hanzal, M. S.
Vojanova 615                          phone/fax: +420-311-24433
266 01 Beroun                         e-mail: snail@iol.cz
Czech Republic                        URL: http://www.vitrum.cz/snail/
======================================================================