Irreversible Labels

A range of temperature indicators that change colour permanently when exposed to temperatures above their activation temperature rating.

Providing a simple method of monitoring temperature to alert people and business assets from heat injury or damage, our labels offer accuracy and performance. Standard temperature range is 29 to 290°C with over 75 specific temperatures available as standard. Ideal for Process control, Test & measurement, Quality control, Safety and Warranty.


Due to the nature of construction we can produce these in most designs or shapes and a full custom manufacturing service is available to meet customers’ precise requirements.

Thermax is a range of Labels and Strips that change colour permanently, indicating the maximum temperature achieved. Available with a wide range of temperatures and sizes.

These irreversible labels can be used in numerous applications such as Food, Medical, Automotive, Aerospace and Engineering.

Inexpensive and Easy to Use, Immediate Response, Permanent Record of Highest Temperature Reached, Oil, Water and Steam Resistant.

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