... quality with competive price 3,widely used in Auto,Membrane Switches,printing,Control panel POLYCARBONATE FILM is a transparent ... exchange rateASTM D117W/m.°C0.19Contractibility rateASTM D1204%<0.3(135°C)Brittle temperatureASTM D746°C-130Vicat softening temperatureASTM ... resistivityASTM D257Ω.cm>1016Arc resistanceASTM D495sec>100 Polycarbonate Film for membrane switches,nameplates,screen printing