Hi-etch primer specifically formulated for all PVC and CPVC pipe applications such as potable water, pressure pipe, gas, conduit, sewers and drain, waste and vent (DWV). Fast acting, hi-etch primer prepares the surfaces for excellent bonding strength, purple color ensures easy visual check for complete coverage. For use on all sizes and classes in both SCH 40 and 80. NSF approved, LEED compliant, UPC (IAPMO) listed, meets ASTM F 656 specifications. Dauber can.