+18 Black Light For Photo Emulsion 2023. Web over time light sources weaken, especially huv (black light) units and to compensate you increase your exposure time but make sure your positive is opaque! Web led light sources that have a high lumen output work best for exposing screens.

Photopolymer, dual cure, and diazo. The emulsion is exposed to high amounts of concentrated uv light during exposure and is hardened to a solid state in the process. Web my first exposure setup was two 18 neon fixtures with black light bulbs, which i got from a garage sale.