ProChem WR-3 is a Diazo sensitized photo-emulsion. This product is recommended for plastisol and water-based inks. ProChem WR-3 has excellent water resistance. Diazo is added normally, first by adding room temperature water, agitating and then adding the solution to the emulsion. Allow the emulsion to stand for at least 2 hours to ensure any air bubbles introduced during mixing are released. Reclaiming is easy with CCI Stencil Removers, which are available in concentrate and ready to use formulas.