SYNTHERM- 1000 Heat transfer fluid is a high-performance synthetic, organic heattransfer medium for use in theliquid phase and in the vaporliquid phase in closed, forced circulation heat transfer systems. The upper use limit lies at a heater Outlet temperature Of 325'C. The film temperature should not exceed the limit Of 3400C either significantly or for a prolonged period. SYNTHERM-IOOO Heat transfer fluid in the liquid phase is preferably used in unpressurized systems at working temperatures from to 325•C_ Due to its favourable viscosity behaviour, SYNTHERM-IOOO Heat transfer fluid is the ideal heat-transfer medium for heating and cooling processes.