I use Ulano Proclaim (extremly long exposure latitude). I coat the mesh 120T and 100 T. I dry the screen for 90 min at 40 C (104F) and then I expose it on a 750w halogen lamp. The distance from the lamp to the screen is 30 inches and the time of exposure is 8 minutes. Dimensions of the screen are 12 inches x 40 inches.
After exposure my coated screen is partially washed off. what is the necessary exposure time? Any advice? Thank you.