... processing aid for WPCZB-530 series is foam adjustment agent made from acrylate monomer by ... high viscosityMain ApplicationTo be used in rigid PVC foamed board, pipe, window and fitting, window, etcPVC fitting ... , window and low foamed pipe, board, window, window profile etcTypical CharacteristicExcellent comprehensive property, It ... - Acrylic processing aid for pvc foam board