ULANO RUBYLITH RU3 is a red masking film suited for use with orthochromatic films. Its safe for use with camera speed darkroom films as well as indirect gelatin stencil films and diazo, diazo acrylic, or SBQ sensitized stencil films or emulsions. Rubylith is primarily used in the camera and plate making operations for offset lithography, flexography, gravure, and screen processes where orthochromatic films and plates are used. These films can be cut manually or on a plotter to produce masks for film contacting and plate making, and film positives for photographic stencil production. Film is coated onto 300-gauge polyester and is 3mil thick.
