--- In
Homebrew_PCBs@yahoogroups.com, "juanabba" <jjose@...> wrote:
>
> hi all
> thinking on a simple and cheap method for PCB prototypes.
> what will happens if we get an uniform layer of "UV cured paint" over
> the pcb cooper, and we will UV cure the paint through a transparency
> were the areas to be etched will be opaque and the desired tracks will
> be transparent.
> If the cured paint will survive to the next step (etching attack), the
> rest is so obvious that I am sure I am missing some fundamentals
> somewhere on the process.
>
> pls what am I missing????
>
> thanks in advance
>
> juan
>
In fact, that is the well-stablished dry-film or liquid photoimaginable
negative methods. I do not know what kind of "UV cured paint" are you
thinking, but if it is not intended for PCB use, you can bet that
surely it do not work. There are no UV cured paints -used for other
purposes- that can rivale the PCB UV photopolymers.
You are right that it is a simple and cheap method for PCBs
(prototyping or high volume just like the PCB shops).
Juan Carlos.