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Thermochromic paint

Certain structures require the control of extremely high temperatures. These structures cannot avail of the use of conventional sensors. However, thermochromic paint is ideal.

Aerospace engines, oil pipelines or oil platforms in the middle of the ocean need continuous monitoring of specific points, such as welding spots. Difficult access requires fully unassisted thermal control, like in the case of structures that are under the sea, where specially prepared paint is ideal in helping against corrosion.

If you need to buy thermochromic paint, you have come to the right place. Our thermochromic paint is the first one to provide high resistance in harsh environments.

The best selection of heat-sensitive paint

Deciding on the right type of paint for a particular use is not a simple task. The temperature to be monitored needs to be analysed, along with the times of exposure to this temperature. We also need to consider the materials on which the paint will be applied and the environment in which they will be placed. We recommend that you contact our specialists, who can give their best recommendation concerning the product, its use and provide the most reasonable price for thermochromic paint. However, in the following sections you will find more detailed information that may be of help.

Main features of thermochromic paint

Below, we highlight the basic properties of thermochromic paint:

  • Most surfaces do not need a primer.
  • Fast reaction time.
  • High performance in normal and harsh environments.
  • Ideal for the preparation of thermal profiles.
  • Distinct and intense colour contrast.
  • Oil, vapour and water‑resistant.
  • No additives required.
  • Variety of paints: one change of colour or SINGLE CHANGE and several successive changes of colour or MULTI-CHANGE.

Main uses for heat-sensitive paint

Heat-sensitive paint was created because of the need to monitor the temperature of surfaces subjected to very high temperatures.

The surface of a reaction engine or gas turbine reaches extremely harsh temperatures. Therefore, thermochromic paint is an invaluable tool when it comes to determining thermal profiles and detecting defects in their complex structure to prevent fatal accidents. Later on, due to the need for continuous monitoring and control of the condition of structures like oil platform pipelines – which are affected by seawater – corrosion‑resistant paints were developed.

Requirements of thermochromic paint

The working conditions when using thermochromic painting call for specific requirements to achieve optimum results in our thermal profiles. This type of sensor is marketed with a detailed technical sheet specifying all the necessary details to obtain the highest performance:
  • Initial colour: base colour of the paint before it is subjected to high temperatures.
  • First colour change: first colour change that will occur at the beginning of the temperature rise.
  • Safety temperature: information on the temperature at which the paint will start to change colour over time.
  • Technical details: composition, coverage, corrosion suitability and basic instructions for use.
  • Colour chart: for multi-change paint, it includes colour change temperatures and the associated colours, in addition to the colour chart made in Nimonic 90. If the surface is made of another material, we will carry out preliminary verification tests to check the colours for the surface at issue.
  • Calibration profile: this diagram shows the progress of colour changes in the paint according to the elapsed time.