Products containing thermochromic pigments change color—sometimes permanently—due to heat exposure. Could these pigments raise awareness of the dangers caused by above-average temperatures? Knowing the basics of how they work could help you decide whether or not to use them.
A new coating technology that allows the pucks to change from purple to clear when the puck’s temperature is above freezing. This provides a visual indication to officials that the puck should be replaced.
PPG and the National Hockey League (NHL®) announced that official game pucks featuring thermochromic coatings supplied by PPG will be in play at the 2019 Bridgestone NHL Winter Classic® at Notre Dame Stadium on New Year’s Day.
