USE Speedball Diazo Photo Emulsion Remover reclaims emulsion-coated ink screens for reuse. It is more effective than bleach in cleaning screens used in screen printing. Essential supplies for art and craft kit APPLICATION Simply apply the Speedball Diazo Photo Emulsion Remover to both sides of the screen, scrub with soft brush, apply again, wait a few minutes, scrub and rinse with warm water. Use the screen over and over SAFE Speedball's Photo Emulsion Remover carries the AP Seal, which identifies art materials are safe and certified in a toxicological evaluation to contain no materials in large quantities to be toxic or injurious to humans, including children EMULSION The photo emulsion method of screen printing allows artists to create a photographic stencil featuring highly-detailed images. Offers professional grade results BRAND Speedball’s rich history of manufacturing fine art and craft supplies began in Camden, NJ in 1899. Speedball’s offerings have grown but their dedication to providing customers with superior products at an affordable price remains the same