I've ground up artist's charcoal using 400 grit or 800 grit sharpening stone then add the powdered charcoal into india ink based on some polymer. I checked to see that the artist graphite did indeed conduct. Measured about 500 ohms per 6 "squares" (distance/cross sectional area) or so. Not very scientific but it will do.
Smilingcat
--- In Homebrew_PCBs@yahoogroups.com, "Jeff Heiss" <jeff.heiss@...> wrote:
>
> What are you using for through-hole activation?
>
>
>
> Jeff
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>
>
> _____
>
> From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com]
> On Behalf Of smilingcat90254
> Sent: Thursday, November 29, 2012 5:55 PM
> To: Homebrew_PCBs@yahoogroups.com
> Subject: [Homebrew_PCBs] Re: Want to plate drill holes for your double sided
> PCB's
>
>
>
>
>
> Oh someone wanted to know what am I plating?
>
> I was going to plate my drilled out hole with copper so that on double sided
> PC, i'm not having to stick a piece of wire and solder both top and bottom
> copper.
>
> You could also use it to plate tin if you want. But your plating solution
> would have to be different.
>
> And minor correction At 5 Amp you can plate 6"x6" double sided PCB not
> 6"x12"
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> [Non-text portions of this message have been removed]
>