> 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.
I don't know about any of the board materials being sensitive to IR.
As far as I know, the silkscreen materials are sensitive to UV,
depending on the material, with a peak sensitivity at either 360nm or
420nm. That is why a MH lamp works so well for exposure. I just did
a screen using Chromaline ProCap film and the exposure was 40 min 32
inches from a 400 watt metal halide.
Kevin