CIPP needle nonwoven laminated with tpu film used for pipe rehab CIPPpolyester needle nonwoven, 400GSM, 600gsm, 800GSMpolyether tpu film, 0.4mm.width: 150cm--190CMNeedlepunched felt coated with polymer on one side, is very flexible, watertight andairtight. The tube made with it is used in an inversion process for certaincured-in-place pipe repairs.It has application in water, sewer, gas, and ...