Flexcon® ThermlFilm® HT™

High-Temperature Labeling for Extreme Environments
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ThermlFilm HT
industrial electronics assembly line

High-Temperature Labeling

When durability and heat resistance are critical, Flexcon’s ThermlFilm® HT™ series delivers unmatched performance across demanding industries. 

  • ThermlFilm® HT™ PI1W50GV2  - 1 mil (25 micron) high temperature white polyimide film, topcoated for extensive printability
  • ThermlFilm® HT™ PI2W50GV2 - 2 mil (50 micron) high temperature white polyimide film, topcoated for extensive printability
circuit board

Withstands extremes


These high-performance label substrates withstand extreme temperatures up to 750°F (399°C), resist chemical exposure and endure abrasion, ensuring reliable product identification throughout the manufacturing process and beyond. 

industrial electronics assembly line

Superior printability


The bright white film finish and superior, high-resolution printability allows for crisp barcodes, data matrix codes, and alphanumeric identification, essential for precise tracking and quality assurance.

Coater

Unmatched performance


When durability and heat resistance are critical, Flexcon’s ThermlFilm® HT™ series delivers unmatched performance across demanding industries.

Flexcon label materials

Across industries


From under-the-hood engine parts and aircraft wiring to sterilization tracking and solar panel labeling, ensuring long-lasting identification in the most challenging environments. 

Available in 1- and 2-mil polyimide constructions, it provides a reliable solution for high-temperature labeling needs across industries.

Flexcon® ThermlFilm® HT™ Benefits

  • Withstands intermittent heat up to 750°F (399°C) for high-heat applications
  • 600 DPI resolution for sharp barcodes, data matrix codes, and alphanumeric tracking
  • ANSI scannability compliance ensures reliable long-term traceability
  • Topcoat has static dissipating properties
  • Chemical, solvent, and abrasion resistance (OHR1 Compliant) for harsh industrial conditions
  • Low-outgassing adhesive for sensitive applications
  • UL 969 recognized, REACH & RoHS compliant, and halogen-free
  • Available in 1mil (25 micron) and 2mil (50 micron) polyimide constructions with standard 50 lb. glassine liner in master rolls or in custom slit width

ThermlFilm® HT™ Industry Applications

ThermlFilm® HT™ is ideal for high-temperature labeling in:


  • Printed Circuit Boards (PCB) - Withstands leaded and non-leaded reflow soldering, harsh cleaning chemicals, and flux exposure while maintaining barcode clarity.
  • Automotive (Under-the-hood & Electronics) - Resists extreme temperatures, oil, and engine chemicals, ensuring long-lasting component identification.
  • Aerospace & Defense - Maintains durability under extreme conditions, ideal for wiring, avionics, and high-heat applications.
  • Medical Devices & Sterilization Tracking - Designed for autoclave and high-heat sterilization cycles, ensuring permanent traceability.
  • Oil & Gas, Renewable Energy - Survives harsh chemicals, high temperatures, and rugged outdoor exposure.

Tested and Approved

ThermlFilm® HT™ is Tested & Approved for:

  • Leaded and lead-free reflow soldering (top & bottom)
  • Wave soldering and chemical washes (up to 7 cycles)
  • Thermal transfer printing with a wide range of UL-recognized ribbons

Special Considerations

Special Considerations

  • Ensure clean, dry surfaces before label application. IPA (isopropyl alcohol) is recommended for cleaning.
  • Expose printed labels to 302°F (150°C) before performance testing for best results.
  • Actual application testing is recommended to confirm suitability for specific environmental conditions.

For samples, technical support, or ordering information, visit flexcon.com or contact us at +44 1592 663 200.


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