Thermochromic liquid crystal paints for industries
Thermochromic liquid crystal paints are paints changing colours in rainbow shades. Each colour of thermochromic liquid crystal paints indicates a different temperature.
The paint, sensitive to temperature, changes from colourless (black on a black background) to red in a given temperature and together with the temperature increase, goes through every colour of the visible light spectrum (orange, yellow, green, blue, violet) and then becomes colourless (black) again at an even higher temperature.
The colour changes are reversible.
After cooling down, the sequence of colour change is reverse to the one observed during temperature increase.
Thermochromic liquid crystal paints are used for signing medical equipment and installations, as thermometers to measure the temperature of a room or an aquarium, as gas level indicators in propane containers, etc.