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WATTCO™ silicone rubber heaters are composed of fiberglass enhanced silicone rubbers that are moisture and chemical resistant. Thin and flexible, these heaters are designed to meet the requirements of various low and medium temperature applications that require irregular shapes, sizes, and dimensions.
Unit of Measure

Specifications

Maximum Size

 N/A 38 x 98 in

Thickness

 N/A 0.060 in

Maximum Temperature

 N/A 450 ºF

Maximum Voltage (Alternating Current)

 N/A 480 V

Wattage Tolerance

 N/A +5 to -10 %

Dielectric Strength (Alternating Current)

 N/A 1000 V

Lead Wire Models

 N/A WATTCO™ silicone heaters come with lead wire terminations. Two models are currently available: Polytetrafluoroethylene (PTFE) and silicone lead wires.

Polytetrafluoroethylene (PTFE) lead wires:
  • Placed between the silicone layers
  • A little patch is added on the exit point for additional protection
Note: The added patch creates a small bump where the wires are attached. Joining the internal resistance wire and the lead wire can be done with an external tab upon request.

SJO Power Cable

 N/A For separate use in an industrial application, WATTCO™ silicone heaters can be supplied with power cables that come out of a silicone transition box attached to the heater. Proper electrical plugs are sold with the power cables.

Watt Density vs. Attachment Method

 N/A The graph below indicates the surface temperature that can be reached by a silicone rubber heater suspended in 70°F air. For applications with a watt density of less than , the temperature will attain and stabilize at below 500°F. Please attach the heater to the surface or use a pressure plate for applications with higher watt density.

Fastening Methods

 N/A RTV Adhesives
  • For solid attachment to application surfaces, use room temperature adhesive pastes.
  • Available in RTV 106 (red) and RTV 116 (transparent).
  • RTV 106 and RTV 116 are suitable for high temperatures of up to 500°F.
Pressure Sensitive Adhesives
  • Thin layer of adhesive backing for high temperature (300°F).
  • Made for all surfaces.
  • Include an easy-to-remove protective cover.
  • Watt density:5 W/in² and less if used with a PSA.
Factory Vulcanization
  • The best method to fix a heater to a surface.
  • Vulcanization can be used with high temperatures and pressures.
  • The method is only available in the factory.
Mechanical Fasteners
  • For heaters wrapped around an application, fasteners are attached to the fabrics.
  • Standard fasteners:
    • Eyelets with lacing cords
    • Velcro hooks and loops
    • Metallic fasteners with springs
    • Independent straps

Standards

 N/A Canadian Standards Association (CSA) European Conformity (CE)

Key Features

Key Features

 N/A
  • Silicone rubber sheets
  • Fiberglass grid to reinforce the silicone rubber sheets
  • Uniform spiraled resistance wire web to cover heater
    • Web can be designed with holes and cutouts
  • Thin layer of aluminum for heaters with a pressure sensitive v
  • Regular lead wire: 12" Polytetrafluoroethylene (PTFE) insulated
  • PSA back or thermostat available

Benefits

Benefits

 N/A
  • Quick heat transfer
  • Moisture and chemical resistant
  • Thin
  • Flexible
  • Solidly built
  • Adheres to all surfaces
  • CSA and CE certified

Note

Note

 N/A The added patch creates a small bump where the wires are attached. Joining the internal resistance wire and the lead wire can be done with an external tab upon request.
WATTCO™ silicone rubber heaters can be designed with preset or adjustable thermostats, thermal cutoffs, and external "J" thermocouples with their respective temperature range and amperage capabilities.
Material, dimensions, special shapes, wattage, voltage, operating temperature, type of leads and length, thermostat – range or setting, thermocouple, and mounting type (PSA, factory vulcanization, RTV adhesives).