Mica Heater

Mica heaters have superior heating performance while being flexible to some extent. They consist of an etched foil element sandwiched in between two layers of mica plates and can operate at temperatures up to 500°C.

The insulating material is phlogopite mica infused with a high temperature resistant polymer. The infused polymer helps mica heaters to be formable during the manufacturing process. The final heat curing enhances the rigidity and sets the form.

The excellent dielectric strength and high temperature capability make mica heater a perfect choice for both convection and radiant heating. It can replace the traditional tubular heating elements in applications where installation space is limited.  

Feature Summary

  • Wide temperature range from -150°C to 500°C
  • Exceptional heat transfer, quick warming
  • High watt density capability >15 W/cm²
  • Excellent dielectric strength, low leakage
  • Accommodates curved heating surfaces
  • 2D customizable shape, including cutout
  • Can be clamped directly onto the heating surface
  • Even heat distribution
  • Value added options available
round mica heaters with coutouts

Technical Specification

Input volatge12V – 690V Max Temperature500°CMin Size15x30mm
Watt density≤ 15 W/cm2Min Temperature-150°CMax Size600x1000mm
Resistance tolerance≤ ±5%  Thickness0.5 – 1.0mm
Temperature sensorRTD / pt100, thermistor / NTC, thermocouple, thermal fuse, thermal switch
InstallationRTV, mechanical clamping (metal sheath optional, but not necessary)
Circuit designdual input voltage, three phase heater, low inductance design, etc.
Lead wiresTeflon, silicone rubber, fiberglass insulated cables, special wire harness available


  • Semiconductor processing
  • Packaging, strapping, and sealing equipment
  • Injection molding equipment
  • Commercial food service appliances, convection, hot plate and surfaces
  • Radiators and panel heaters
  • Medical instruments: DNA analysis, disinfection, keeping blood, injections and drips

square mica heaters