• Heating or Cooling Operation - Therminol 59 has surprisingly low viscosity for a high temperature heat transfer fluid. It is ideally suited for combination heating and cooling applications delivering excellent heat transfer rates even at 70° F (20° C). Batch processes will benefit from the excellent cooling performance Therminol 59 delivers.
• Superb Low Temperature Pumpability - Low viscosity at exceptionally cold temperatures makes this an ideal fluid for northern climates. In fact, Therminol 59 was originally developed for use on the North Slope in Alaska, a supreme test of low temperature pumpability.
• Long Life Means Low Cost - Like all the Therminol heat transfer fluids, long fluid life is a given with Therminol 59. Users can expect many years of reliable, trouble-free operation, even when operating continuously at the recommended upper temperature limit of 600° F (315° C). Long life means fewer fluid change-outs and that means low operating costs, which is critical in today’s highly competitive business environment.

• Oil and Gas Processing
• Switch Condensers
• Pharmaceuticals Manufacturing
• Specialty and Batch Chemical Production
• Biodiesel

Therminol® 59
Heat Transfer Fluid


Operating Range -45 °C to 315 °C (-50 °F to 600 °F)