Susan....My suggestion would be to find some rubylith material or just use a large piece of mounting board to cover up your polymer and wait for the light to come up to full lumens and then remove it. Start your unit timing from that point. If you are only doing that process for a while then you might want to turn your integrator wheel to a different number to slow the "unit per second" timing. Any printing company that had a NuArc might still have some ruby material laying around. It is a dark red masking material used to block UV light while making plates "in the old days". I sent you a pm with my numbers if you would like to call.
Originally Posted by suvo