Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

I was wondering if anyone can give me some advice, looking at the
threads recently it looks like lots of people here have tried
sensitized boards.

This material appears to be the same stuff as silkscreen printers use
on silkscreens, where the exposed areas to intense light are hardened
and the unexposed areas are washed away with water.

Do any of the sensitized boards or materials react to INFRA-RED light?
I have an infra-red laser diode on a cnc machine, its not powerful
enough to cut stuff with but will smolder black foams. I was wondering
if its possible to use that to rastorize the image, but I dont know
about all the different types of sensitizer or what types of lights
they react to. I know in screen printing, they make types which react
to a 4k watt metal halide bulb, and newbie stuff that works with a 150
watt lightbulb.