Three-layer transparent plastic film consisting of a 15 µm fluorinated polymer (FCC) (EVA) layer, a 275 µm polyethylene terephthalate (PET) layer and a 25 µm fluorinated polymer (FCC) layer with:

-a total thickness of 300 µm or more, but not more than 330 µm,

-a tensile strength of 375 N/cm or more in both the longitudinal and transverse directions (ASTM D-882), 

-a low thermal shrinkage of 1 % or less at 150 °C for 30 minutes,

-a low water vapor permeability of 2,5 g/m²•d or less, and

-a high breakdown voltage of 18 kV or more and 

-a partial discharge voltage of 1500 VDC or more (BG/T 123542.2-2009)
to be used as a protective layer on the back of photovoltaic modules
Third country duty