Dowtherm fluids are 100% synthetic organic fluids which offer exceptional thermal stability and value when used in operating ranges of -80°C to +400°C. This stability translates to maximum efficiency, longest fluid life and optimum operational economics. Dowtherm fluids can operate the fluid as a non-pressurised or low-pressure liquid, vapour or pressurised liquid at various temperatures. These robust fluids have set the industry standard for over 60 years for their exceptional physical properties.