duratherm heat transfer fluids

Duratherm S

A silicone based fluid that is ideally suited for high oxidation or completely exposed systems. Duratherm S is virtually impervious to oxidation at temperatures under 204°C (400°F) and offers superior protection from fluid degradation. Duratherm S is best suited for applications not prone to contamination or leaking.



Duratherm S is ideal for applications such as negative pressure mold heaters, annealing tanks, open bath forming, or any processing equipment where oxidation is prevalent and problematic. Duratherm S resists the affects of oxidation seen with most other heat transfer fluids. High temperature stability is maintained to 315ºC (600°F), this combined with a low end working temperature of -51°C (-60°F) also makes Duratherm S ideally suited for low temperature applications, batch processing application requiring a single fluid for both heating and cooling.


  • Superior oxidation resistance (virtually unaffected)
  • Non-fouling - extremely long life
  • Low odor
  • Non corrosive
  • Non hazardous
  • Non Toxic
  • Extremely high working temperature 315°C (600°F)
  • Extremely low working temperature -51°C (-60°F)


Duratherm S is a high performance, extremely stable, long lasting silicone based heat transfer fluid. Virtually unaffected by oxidation under 204ºC (400ºF), Duratherm S is perfect for use in a variety of applications requiring a safe, non-reportable, non-toxic and non corrosive heat transfer fluid. LESS
Note: The values quoted in the table above are typical of normal production. They do not constitute a specification.

    Quick Facts

    • Rated to 343°C (650°F)
    • Silicone based
    • Highest Duratherm flash point
    • Low working temperature
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