Biaxially-oriented polyethylene-naphthalate film, low thermal shrinkage at 150 C, breakdown > 600 MV/m
High voltage and high temperature grade. No thermal shrinkage at 150 C, minimal shrinkage at 200 C. Much better than Mylart PET.
Size is 315 mm wide and 1000 m long, on plastic core with 152 mm internal diameter.
Thickness 4.9 um.