The Speedball Diazo Photo Emulsion System is one of the most exciting methods of screen printing available, offering an incredible range of possibilities. It allows the printing of fine line drawings, various hand and commercial letterings, as well as photographic half-tone positives.Diazo Photo Emulsion Kit contains one 7 oz. jar of photo emulsion, one 8 oz. jar of photo emulsion remover, and one 1 oz. bottle of condensed sensitizer. Diazo Photo Emulsion has a three-year shelf life if not mixed. Once sensitized it has a shelf life of four weeks at 90 F., eight weeks at 70 F., and four months when refrigerated.
