General Purpose GradeMade from a blend of SBR and CR compound. Moderate resistance to industrial oil, industrial acid&alkali and heat. Available for gaskets, seals, o-rings, flrooing and etc. Material Selection: SBR/CRPolymer Content:2%-10%Working Temperature: -30℃-80℃Tensile strength:3-8mpaHardenss: 50-80 DuroElongation:150%-350%Thickness: 1mm - 50mmWidth: 80mm-1.5mLength:500mm-30mSurface: smooth or cloth wove Commercial GradeMade from Neoprene rubber. Good resistance to fire, oil, acid&alkali, ozone, abrasion and heat. Available for gaskets, seals, o-rings, flrooing and etc. Polymer Content:20%-100%Working Temperature: -30℃-110℃Tensile strength:3-8mpaHardenss: 50-80 DuroElongation:200%-350%Thickness: 1mm - 50mmWidth: 80mm-1.5mLength:500mm-30mSurface: smooth or cloth wove