KF Piezo

A material with limitless possibilities

Kureha was first in the world to successfully develop an industrial manufacturing process for this ferroelectric macromolecular film. Compared to crystal or ferroelectric ceramics, the flexibility of the KF Piezo film provides good workability, allowing wide-ranging use for sensors or speakers.


KF Piezo is made by stretching a KF POLYMER film and applying a high voltage. The molecular structure of the film itself exhibits remarkable piezoelectric and pyroelectric properties. The ability to generate a current in response to pressure, distortion or heat makes this product suitable for a variety of sensors.The KF Piezo film was used on the JAXA solar sail spacecraft IKAROS to detect space dust.


  • Sensors: Musical instrument pickups, pressure sensors, acceleration sensors
  • Speakers
  • Ultrasonic wave detectors and probes
Pressure sensors
Pressure sensors
KF Piezo sensors
KF Piezo sensors

Mechanism of Piezoelectricity

Piezo film : PVDF uniaxially-streched film
about PVDF Piezoelectric polyme : Piezo film stretches and warps when a positive or negative voltage is applied to it. As it does, the air around it is pushed and pulled. The air vibrates and produces sound.

Contact for inquiries

KF Products Department
TEL:03-3249-4724 / FAX:03-3249-4612