Millennium Silver was designed and formulated to give outstanding performance for printers using Silvermaster/Megalith and other polyester and laser plates. Millennium Silver contains a new generation of wetting agents and buffers to keep the plate clean, prevent toning and print the sharpest dot possible. The product will also work on short run metal plates for even more versatility. Millennium Silver is a buffered product that has an expected pH of 3.6 - 4.0. Water hardness range is not an issue with the product.