... back sheet,it is made for the packing of solar cell models, superior light, easy to bend, transmittance is good ... .this film is a good packing film for solar cell model,it can supply good protection for solar cells, ... and it is the most ideal packing material for solar cell packageIt has salient product features1:Thicknss:0.3,0. ... superior adhesivement with EVA7:strong tear strength. TPT solar cell film