--- In
Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@g...> wrote:
>
> No, it's something entirely different.
> The photoresist is for all intents and purposes just another
laquer that
> dries by evaporation of solvent.
>
> UV curing ink is polimerization because of UV light, not
evaporation of
> solvent.
> You could just use any solvent laquer instead of photoresist, and
spare
> yourself the mess with exposure, IF you could print solvent laquer
of this
> consistency in a continous layer.
>
> It is not UV curing ink.
>
> ST
St,
Po-tay-to, po-tah-to. When the photresist is cured, it then becomes
impervious to ecthants. The point is that the fluid is designed to
wet out the copper substrate and adhere well.
Myc