Profile: Purity Systems, Inc. offers chelating ion exchange resins. Our product line includes CuWRAM®, WP-1® and WP-2® resins. Our WP-1® is a resin designed for general transition metal processing applications. Our WP-2® is a resin designed for metal removal applications from acidic process liquors. Our CuWRAM® is a selective resin designed for copper recovery from low process liquor pH while rejecting ferric iron.