Sharply defined melting points of a purified organic chemical provide unique, high precision temperature sensitive phase change indicators with color change effects. Each temperature element uses a different chemical compound and is made separately by applying a coating containing the chemical to a special absorptive paper substrate. When the rated temperature is exceeded, the chemical melts and is absorbed by the substrate, causing a permanent color change to black.

Offering precise readings, these irreversible temperature labels combine:

  • Defined melting points– Giving high accuracy with the ability for you to specify exact requirements based on your needs
  • Individually Coated– Allowing you to design your label giving you accurate and clearly defined results
  • Permanent Color Change– Allowing you to keep records for quality control and due diligence or records abuse of your products in the field

Temperature Range

  • 29-290°C and 84-554°F

Color Change

  • THERMAX Strips containing temperatures only up to
    210°C / 410°F – Silver/White to Black
  • THERMAX Strips containing temperatures of 212°C / 414°F
    and above – Orange to Black


    • THERMAX Strips containing temperatures only up
      to 160°C / 320°F – Polyester
    • THERMAX Strips containing temperatures between
      165 and 210°C / 329 and 410°F – Polyethylene Naphthalate
    • THERMAX Strips containing temperatures of
      212°C / 414°F and above – Polyimide


    • Strips can be supplied in packs or rolls – Convenient
      and simple to apply
    • Custom designs – Offering a bespoke solution
    • Custom sizes, shapes and materials – Designed
      to suite a wide range of application


    • Process Control – Giving you consistent results
    • Test & Measurement – Delivering accurate results
    • Quality Control– An affordable solution to safeguard quality
    • Safety Indicators– Protecting people, equipment, machinery, and products
    • Warranty – Removing the risk of false claims
    • Maintenance – Reducing downtime and maximizing performance

    Get In Touch

    Have questions? We’re here to help!
    Contact Us