Silicone Rubber Heaters

Silicone rubber heaters provide dependable performance under rigorous conditions.  These heaters can be designed and fabricated to fit your industrial application.

We use custom software to calculate the configuration of the heating element of the silicone rubber heater, given the voltage, wattage and resistance.

Etched Foil Silicone Rubber | Wire Wound Silicone Rubber | Standard, In-stock Heaters


Etched Foil Silicone Rubber Heaters

The etched element provides superior heat transfer and exceptionally uniform heat output, which results in a faster warm-up cycle and longer life. The flexible heaters operate in ambient temperatures from -80°F to 500°F.

etched foil silicone rubber heaters

Advantages over wire wound silicone rubber heaters:

  • Higher watt densities
  • Distributed wattages
  • Elimination of edge loss compensation
  • Greater element area over heater sheath
  • Complex heat distribution with a rating of about 200°C (392°F)
  • Economical mass production
  • Reproduction of complex circuits


Wire Wound Silicone Rubber Heaters

The excellent dielectric properties of silicone rubber and the strength of fiberglass combine to produce a unique heater. First, fine nickel-chromium alloy wire is spiraled onto a center core of fiberglass twine, producing a strong, flexible heating element.  Electronically-controlled precision winding equipment ensures consistency.

Circuits are then hand-wound on permanent tooling providing repeatability of resistance and pattern. Parallel circuits are utilized where possible, permitting continued operation should a single circuit be damaged.

When the heating element is positioned, a second layer of silicone rubber is laid over the wire. The layers are then vulcanized to permanently position the circuits.

Using these versatile and flexible heaters, the ability to apply heat exactly where required is limited only by imagination — and a maximum continuous operating temperature of about 200°C (392°F).


Standard-sized, In-stock, Silicone Rubber heaters

In addition to custom designed industrial heaters, Hi-Heat Industries manufactures standard sizes of silicone rubber heaters. These flat, flexible heating elements range from 25 to 1500 watts.

A variety of modifications are available to help meet your needs. We have these standard-sized heaters in-stock and ready for your application — as is or with modifications.