... ,Moisture barrier 2)Weatherability,Durability +25year 3)WaterproofTPT Backsheet For Photovoltaic Cell Module 1)UV resistance,Moisture barrier2)Weatherability,Durability ... chemicals, solvents, and staining agents5)Excellent adhesion to EVA, Waterproof.Technical Data PropertyTest MethodUnitsValueThicknessCaliperMicron300Material compos--Tedlar-PET-Tedlar30+240+30Tensile strengthVerticalGB/T1040Mpa ...