Kapton® (polyimide) Heater Specifications:
Sizes: Custom, consult Durex Industries for your application requirements
Standard Thickness: .007” in
Maximum Watt Density: 50 W/in² (depending on application, consult Durex for higher densities)
Standard Dimensional Tolerances: Less than 12” ± .062, Greater than 12” ± .125
Maximum Operating Temperature: 450°F (260°C)
Minimum Operating Temperature: -319˚F (-195˚C)
Wattage Tolerance: ±10%
Dielectric Strength: 1000 VAC
Kapton® (polyimide) Heater Mounting Options:
Pressure Sensitive Adhesive
PSA is the most common option for mounting Kapton® heaters. By selecting proper materials, including the release agent, you can promote a strong bond and effective heat transfer.
Kapton® heaters can also be clamped to their heating surface. A pressure plate is then fastened in place. To ensure even distribution of heat, and to protect the heater, a pressure pad or insulation layer is advised. The work surface should be free of any debris, dirt, chemicals, bumps, or grooves. This will protect the heater as well as prevent overheating.
When mounting to a smooth cylindrical surface, Kapton® heaters can be mounted with self-fusing tape. This will provide a safe operation and even transfer of heat.
Temperature Control Options:
For temperature control on Kapton® heaters, Durex recommends an RTD or thermocouple. Sensors are mounted to the surface of the heater and send a resistance measurement to an external controller that cycles the heater at a set temperature.