IG-1 heat transfer fluid for closed loop heat transfer systems is ideal for use in paving equipment. It has a low vapor pressure, which means that the rate of fluid boil-off is low. Also, the fluid has a high flash point of 442F. Other benefits include optimal thermal conductivity at high pressures and long service life. It resists thermal breakdown, as well. The non-corrosive, non-toxic fluid's operating range is 10 to 550F.