On Tue, 18 Apr 2006 08:25:04 +0200, Volkan Sahin <
vsahin@...>
wrote:
> Hi All,
>
> I painted copper clad PCB with different ink colors,
>
> it seems most etch resistant is yellow and second is
>
> magenta. I also applied combinations of 3 colors to
>
> generate black and black blue. The losers are black
>
> and blue. The combination of three colors is also etch
>
> (Ferric Chloride) resistant. I will upload the scanned
>
> image of the board Files > Epson_inkjet_Volkan folder
>
> Most probably I will use magenta+yellow combination
>
> since yellow is not so easy to see on copper.
>
>
> Volkan
Ok, so one needs a combination of inks.
Do you think it would be sufficient to print with yellow only?
I wonder if it would be better to mix colors together and use in one head,
or if this does not work as well.
I would probably prefer to have only one tank with resist ink which i have
to refill.
Anyway, thanks for quickly posting what you found, we almost bought black
only...
Would you have any chance in the forseeable future to either try yourself,
or send someone (e.g. me) a PCB painted with all the colors, and also a
yellow/magenta mix, to try in CuCl etchant? I would paypal your expenses.
A inkjet print would of course be best, but if you don't have any thin
stock any more a rigid PCB hand painted would work also. If you can't /
don't want to do this for some reason it is fine, but i wanted to at least
ask.
I am worried that CuCl might be to agressive and i don't think i am
prepared to go back to FeCl.
Thanks
ST