Jason, if they said it was meant for screenprinting, then it's probably just Kodalith. I've used quite a bit of that years ago when we made film positives & film negs in house (with a stat camera) for our silkscreening operation....everything's done by computer output now. I think some people can manage to get a continuous tone out of it, but for the most part this is just a litho film. Use it for shooting line art, or making halftones. Personally I don't care too much for the stuff, and was glad to be rid of it. The chemistry always bugged me & it had formaldehyde in parts of it. I still occasionally use it in copying old etchings, or similar line art. I'm sure you can get creative with it, but this is what it's designed for mainly.