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Silicone Rubber Heaters

Silicone rubber heaters are thin, flexible, and lightweight. They can operate between -90°F and 450°F (up to 394°F CSA certified). A fiberglass grid reinforces the silicone laminates making silicone rubber heaters rugged and dimensionally stable. The heating circuits inside these heaters are designed to have uniform distribution and because of their proximity to the heated surface, they transfer heat in a rapid, uniform and efficient manner. Silicone rubber heaters are moisture and chemical resistant; they can be bonded to flat or curved surfaces and can be built with many features such as: thermostats, temperature sensors or thermal fuses. Silicone rubber heaters are not suitable for vacuum, radiation, and continuous exposure to oils.

Silicone rubber heaters can be manufactured with two types of heating circuits; wire-wound style and etched-foil style. Each construction has its unique characteristics and should be selected accordingly. Wire-wound circuits are formed by creating a specific pattern with resistance wire (single or multi-strand) which is wound around a high temp core for strength and flexibility.

The etched-foil circuit is produced by chemically etching a resistive circuit out of a nickel based alloy resistance foil (0.0005in-0.004in thick) in a clean room process similar to the production of printed circuit boards. Etched-foil circuits are more suitable for complex heat distribution patterns and because of the larger surface area coverage of their resistive elements (75% of the surface), these circuits can have higher watt-densities compared to wire-wound circuits.

  • PHOTO PROCESSING EQUIPMENT
  • FREEZE PROTECTION
  • COMPUTERE EQUIPMENT
  • MEDICAL EQUIPMENT
  • CONDENSATION PREVENTION FOR INSTRUMENTS AND EQUIPMENT
  • CURING OF PLASTIC LAMINATES
  • SEMICONDUCTOR PROCESSING EQUIPMENT

Silicone rubber heater detail

Silicone Rubber Heaters Wire wound circuit Etched foil circuit
Max Length 144" 22"
Max Width 37" 10"
Thickness 0.06” / 0.12" 0.03” / 0.06"
Max Operating Temperature 450°F Intermittent
392°F Continuous
Max Voltage 600 VAC / 120 VDC
Watt Density Up to 10 W/in²* Up to 30 W/in²*

*Depending on temperature and application.