In ice hockey stadiums, Glysofor is used to create artificial ice surfaces by being brought to a temperature of -10° to -12° C in the cooling piping, so that water can be sprayed over it to freeze and form an ice surface. On the other hand, in football stadiums, under-soil heating is used to enable games to be played in winter when the temperature is below zero and if snow has fallen. The plastic pipes that are installed below the roots are filled with Glysofor and keep the playing surface a few degrees above freezing. In addition, the entire system is protected against frost damage on days when there are no games. Glysofor can therefore work as a cooling or a heat transfer medium and ensure constant temperatures in ice surfaces in ice hockey stadiums or frost-proof operation of grass heating systems in football stadiums.