Homebrew PCBs

Chemtronics CW2460<http://www.digikey.com/product-detail/en/CW2460/CW2460-ND/2098937>silver
epoxy is "only" $170 for 20 grams from DigiKey. It has a work life
of 60 minutes.

I've used MG Chemicals
8331-40G<http://www.digikey.com/product-detail/en/8331-40G/473-1142-ND/2805409>silver
epoxy ($97 for 40 grams or $51 for 14 grams from Mouser). It's good
stuff, but I wouldn't recommend it for this application because the work
life is much shorter.

You might be able to make your own conductive epoxy, using your choice of
epoxy (appropriate work time, probably want heat curable) and a conductive
powder, perhaps tin or carbon.

There are also conductive ink pens for about $50 a piece. Would save you
the trouble of coming up with an applicator nozzle.

On Sat, Mar 2, 2013 at 5:34 PM, Mark Lerman <mlerman@...> wrote:

>
> Final result:
>
> After a difficult set of interactions with this definitely non
> hobbyist friendly company (Master Bond), I was finally given the
> price of this epoxy - $500 USD for 10 grams!!  Needless to say, I'll
> not be experimenting with this product. On to other things!
>
> Mark
>
>
> At 08:36 AM 2/18/2013, you wrote:
>
> >Here's a link to a conductive epoxy that is one part and can be
> >diluted with acetone. It is heat cured. So, theoretically one could
> >"print" the circuit, stick the components on and cook it to cure the
> >epoxy. It appears that it would work, but there would be considerable
> >development time involved in designing the proper "applicator".
> >Something like a solder paste applicator might do. I asked for more
> >information, but master Bond is not really hobbyist friendly. Any
> >thoughts or comments?
> >
> >Mark
> >
> ><
> http://www.masterbond.com/tds/supreme-10hts?utm_source=valentines&utm_medium=email&utm_content=pd-sup10hts&utm_campaign=vrsm
> >
>


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