PPG Working With Penguins, NHL To Develop Color-Changing Coating For Pucks

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PITTSBURGH (KDKA) – For hockey players, having to play with a puck that isn’t properly chilled can be frustrating.
Pucks are made of vulcanized rubber and if they are warm, they’ll bounce all over the ice. So, pucks are normally frozen before a game to ensure that they slide better on the ice.
“Freezing a puck eliminates bouncing, and game officials closely monitor the puck for temperature changes that affect performance while in play,&r