Kaladex® polyethylene naphthalene ester film (PEN FILMS) has properties between polyester and polyimide films. It has excellent long-term aging resistance at high temperatures and can be used continuously at 155°C to meet Class F requirements. It has good dimensional stability at elevated temperatures, low heat shrinkage, better hardness, hydrolysis resistance and resistance to UV irradiation.

Kaladex® products are excellent PEN film products. With their excellent various properties, they are widely used in many industries such as electrical insulation, speaker components, magnetic IC cards, FPC, RFID, labels, tags, semiconductor materials, organic EL, electronic paper, solar cells, capacitors, and environmentally friendly automobiles.