duratherm heat transfer fluids

Our Products

duratherm products

Driven by our customers' demand for excellence, we've engineered our thermal fluids to last longer and run cleaner in even the toughest of applications. With an eye towards environmental responsibility, the majority of the fluids we manufacture are non-toxic and non-hazardous and many are available in food grade versions too. All our fluids deliver the precision temperature control our customers have to come to expect and we support them throughout their life-cycle with expert technical support and our complimentary fluid analysis program.

To view specific thermal fluids or heat transfer system cleaners, select from a category below.

Thermal Fluids

  • Thermal fluids for system operation from -45°C to 343°C (-50°F to 650°F)
  • Highest level of protection available on the market for extreme conditions
  • Environmentally responsible
  • Compatibility with just about any other fluid
  • Single vendor for all thermal fluids, eliminating the concern for compatibility requirements

Open Bath Fluids

  • Non toxic for a safer working environment
  • Exceptional thermal performance over longer in-service periods
  • Higher resistance to oxidation compared to other thermal fluids on the market
  • Working temperature range of up to 260°C (500°F)
  • Better resistance to off-gassing for less smoke

System Cleaners

  • First to introduce a specific heat transfer system cleaner in 1990
  • Maintain production while you clean deposits from your system
  • Capable of working temps up to 288°C (550°F)
  • Clean even severely fouled systems
  • Environmentally-friendly, easy to use, and easy to dispose of responsibly


  • Glycol coolants with boiling point of 213°C (417°F) – higher than most common glycols
  • Single fluid for heating and cooling applications
  • Specially formulated to extend fluid service life and protect your system
  • Made from renewable resources utilizing deionized water of the highest purity
  • Environmentally friendly