Photo Emulsion
Photo emulsion is a specialized coating used in the screen making process. It is a light sensitive chemical that allows the screen maker to impart an image (design) on to the silkscreen.
Depending on your application, you will need to select the appropriate photo emulsion for your print job.
Emulsions come in many forms, and range from having excellent water resistance, for water based screen printing inks, to excellent solvent resistance for solvent based inks like vinyl screen printing inks, and epoxy catalyzed inks.