... resistant of hail, 4.sparkling fire, EPDM waterproof membrane Width: 1.2m Length: 20m Thickness: 1. ... many chemical corrosive substances. 3, High tensile strength, high elongation, high flexibility, capable of sustaining a puncture ... high durability can achieve more than 25 years. 5, The cold construction operation, no environment pollution and simple operation. High quality EPDM Waterproofing Membrane ...