Diazo Sceen Photo Emulsion Remover 8 oz.

Diazo Photo Emulsion Remover is more effective than bleach in cleaning screens used in screen printing.
Just apply the remover to both sides of the screen, scrub with a soft brush, apply again, wait three minutes, and scrub and rinse with hot water. Use the screen again and again. 8 oz (240 ml) jar."