Thermochromic materials change colour with temperature. Warm them and a colour fades, appears or switches to another — a simple, visual way to show heat, with no batteries or electronics.
Some are reversible, returning to their original colour as they cool. Others are irreversible, keeping a permanent record that a temperature has been reached.
Designers, printers, manufacturers, laboratories, research and development teams and schools use them in packaging and labels, heat-reveal printing and promotions, textiles, product design, research and testing, education and security printing.
The same idea — colour that responds to temperature — is behind Stuck For®'s own thermometer strips and Thermax irreversible temperature labels.
SFXC® is a brand of our company, Good Life Innovations Ltd, specialising in smart materials. SFXC mixes and blends products in-house. For the full range of thermochromic pigments, inks, paints and films — with technical guidance and expert advice — visit SFXC.