Polyimide / Kapton® Heaters

Epec’s Polyimide Flexible Heaters are your solution to heating curved and irregular surfaces. Due to their design, polyimide heaters can be extremely thin, as low as 0.007”, excluding any type of affixing adhesives. The etched circuit is pressed between 2-layers of polyimide film with either an FEP adhesive or an acrylic adhesive depending on the thermal characteristics required of the heater.

The design of a polyimide heater offers dimensional stability, superior tensile strength, and overall improved resilience. Polyimide is also resistant to most chemicals.

Polyimide/Kapton Flexible Heater with Custom Wires


We offer multiple heating elements for polyimide heaters, such as stainless steel 304, CuNi44, and Inconel600, with excellent dielectric properties and operating environments between -319°F (-195°C) and 392°F (200°C). Kapton heaters also offer a quicker thermal transfer than silicone rubber heaters.


Current Specifications for Polyimide Heaters

  • Maximum Watt Density: 50 W/in²
  • Maximum Operating Temperature: 392°F (200°C)
  • Minimum Operating Temperature: -319°F (-195°C)
  • Wattage Tolerance: ±10%
  • Dielectric Strength: 1000 VAC

Industry Benefits

Examples of industries that can benefit from the heating capabilities of a custom designed flexible polyimide heater include medical, aerospace, military, foodservice, and many more. Anywhere that operates with tight spaces and demanding conditions should consider the benefits of a Kapton heater.

Celebrating 65 Years of Manufacturing Excellence  Learn More →
America's Oldest. A History of Innovation.

Today at Epec, the customer comes first, and everything we do must be put through that filter. Whether it is developing e-commerce platforms to make it easier to work with us, or creating a NPI (new product introduction) process that helps our customers get to market faster, or the other 10 new projects we have in process, we must focus on building the new. By doing that every day, and by always making the customer our top priority, we plan on being here for another 65 years and then some.

Learn more about our 65 year story →



Celebrating 65 Years - Epec Engineered Technologies