Did you know there are many options to consider when selecting thermal fluids?

  1. Temperature is Everything – match your bulk temperature but also consider film temperature, heater type
  2. Controlling Oxidation – high temperature air exposure can destroy the wrong fluid quickly
  3. Maximizing Fluid Life – short-term or long-term use – invest wisely
  4. Availability is Critical – thermal fluids are often critical to production – how long can you wait for your thermal fluid to ship?
  5. Reliable Service & Support – thermal fluids are maintenance-intensive, but can your vendor help you if there are problem

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Heat Transfer Fluid – Thermal Fluids

Duratherm offers a wide range of thermal fluids (heat transfer fluid) for just about every application and uses anywhere from -84ºC (-120ºF) right up to 338ºC (640ºF). Most are non-toxic and non-hazardous, some even food-grade, but all are highly efficient, clean-running, and long-lasting.

Find your thermal fluid here or these pages for: Open Bath Fluids, System Cleaners, Glycol Coolants

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Confused? We Can Help

Choosing a heat transfer fluid (also called thermal fluid) can be difficult decision. What makes one better than the other? Why do some last longer? How do I know which one is best for my application?

Truth is a lot of heat transfer fluids look alike and If specified properly, they all transfer heat efficiently — the difference is ours just tend to last longer. And while most of the time heat transfer fluids run trouble-free, you want to also choose a company who has the expertise and responsive support to help you when they don’t. All we do is heat transfer fluids and we spend every day helping the people that use them or need help choosing them.

Help is just a phone call or email away – our technical support team – not sales people – are readily available to learn more about your needs and application

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Duratherm HF

Max Temp
338°C

Flash Point
277°C

Engineered for its high flash point of 277°C with an operating limit of 338°C, Duratherm HF offers a solution to those customers requiring the addi... down-arrow

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Duratherm HF

Max Temp
640°C

Flash Point
530°C

Engineered for its high flash point of 530°F with an operating limit of 640°F, Duratherm HF offers a solution to those customers requiring the addi... down-arrow

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Duratherm HF-FG

Max Temp
338°C

Flash Point
277°C

A food grade heat transfer oil rated to 338°C, Duratherm HF-FG is specifically engineered for process heating and cooling applications that need th... down-arrow

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Duratherm HF-FG

Max Temp
640°C

Flash Point
530°C

A food grade heat transfer oil rated to 640°F, Duratherm HF-FG is specifically engineered for process heating and cooling applications that need th... down-arrow

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Duratherm 630

Max Temp
333°C

Flash Point
229°C

Rated to 333°C and engineered to be an economical and environmentally friendly replacement to chemical aromatic thermal fluids, Duratherm 630’s enh... down-arrow

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Duratherm 630

Max Temp
630°C

Flash Point
444°C

Rated to 630°F and engineered to be an economical and environmentally friendly replacement to chemical aromatic thermal fluids, Duratherm 630’s enh... down-arrow

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Duratherm FG

Max Temp
327°C

Flash Point
227°C

Rated to 327°C, It has a strong resistance to fouling for extended service and is engineered and manufactured to comply with the demands of food gr... down-arrow

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Duratherm FG

Max Temp
620°C

Flash Point
440°C

Rated to 620°F, It has a strong resistance to fouling for extended service and is engineered and manufactured to comply with the demands of food gr... down-arrow

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Duratherm HTO

Max Temp
316°C

Flash Point
219°C

Engineered for precise and efficient temperature control up to 316°C, our HTO is a budget-wise solution for any heat transfer fluid applications th... down-arrow

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Duratherm HTO

Max Temp
600°C

Flash Point
425°C

Engineered for precise and efficient temperature control up to 600°F, our HTO is a budget-wise solution for any heat transfer fluid applications th... down-arrow

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Duratherm HTO22-FG

Max Temp
316°C

Flash Point
213°C

Duratherm HTO22-FG is rated to 315C and engineered with a low pour point for easy starting of systems in colder cli... down-arrow

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Duratherm HTO22-FG

Max Temp
600°C

Flash Point
415°C

Duratherm HTO22-FG is rated to 600F and engineered with a low pour point for easy starting of systems in colder clim... down-arrow

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Duratherm HTO-FG

Max Temp
316°C

Flash Point
219°C

Engineered for precise and efficient temperature control up to 316°C, our HTO-FG is a budget-wise, food grade solution for any heat transfer applic... down-arrow

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Duratherm HTO-FG

Max Temp
600°C

Flash Point
425°C

Engineered for precise and efficient temperature control up to 600°F, our HTO-FG is a budget-wise, food grade solution for any heat transfer applic... down-arrow

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Duratherm LT

Max Temp
316°C

Flash Point
165°C

Engineered for a variety of applications requiring process heating and cooling, Duratherm LT is ideal for batch processing operations requiring a t... down-arrow

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Duratherm LT

Max Temp
600°C

Flash Point
329°C

Engineered for a variety of applications requiring process heating and cooling, Duratherm LT is ideal for batch processing operations requiring a t... down-arrow

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Duratherm S

Max Temp
316°C

Flash Point
324°C

A silicone based fluid that is ideally suited for high oxidation applications or completely exposed systems. Duratherm S is virtually impervious to... down-arrow

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Duratherm S

Max Temp
600°C

Flash Point
615°C

A silicone based fluid that is ideally suited for high oxidation applications or completely exposed systems. Duratherm S is virtually impervious to... down-arrow

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Duratherm 600

Max Temp
316°C

Flash Point
224°C

Rated to 316°C and specifically engineered to withstand the extreme oxidation environment of open (to atmosphere) systems, Duratherm 600 incorporat... down-arrow

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Duratherm 600

Max Temp
600°C

Flash Point
435°C

Rated to 600°F and specifically engineered to withstand the extreme oxidation environment of open (to atmosphere) systems, Duratherm 600 incorporat... down-arrow

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Duratherm G

Max Temp
260°C

Flash Point
249°C

Rated to 260°C, a proprietary additive system not only helps Duratherm G last longer and run cleaner, it makes it the ideal choice for extreme oxid... down-arrow

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Duratherm G

Max Temp
500°C

Flash Point
480°C

Rated to 500°F, a proprietary additive system not only helps Duratherm G last longer and run cleaner, it makes it the ideal choice for extreme oxid... down-arrow

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Duratherm 450

Max Temp
233°C

Min Temp
-24°C

Flash Point
150°C

Rated to 233°C, Duratherm 450 is specifically engineered for applications requiring a thermal fluid capable of efficient process heating and coolin... down-arrow

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Duratherm 450

Max Temp
450°C

Min Temp
-45°C

Flash Point
302°C

Rated to 450°F, Duratherm 450 is specifically engineered for applications requiring a thermal fluid capable of efficient process heating and coolin... down-arrow

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Duratherm 450-FG

Max Temp
233°C

Min Temp
-24°C

Flash Point
150°C

A food grade heat transfer fluid rated to 233°C, Duratherm 450-FG is made for applications in the food industry that need both process heating and ... down-arrow

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Duratherm 450-FG

Max Temp
450°C

Min Temp
-64°C

Flash Point
302°C

A food grade heat transfer fluid rated to 450°F, Duratherm 450-FG is made for applications in the food industry that need both process heating and ... down-arrow

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Duratherm XLT-50

Max Temp
122°C

Min Temp
-45°C

Flash Point
85°C

Engineered for extended operation in heat transfer applications requiring precise temperature control ranging from -45°C up to 122°C. Duratherm XLT... down-arrow

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Duratherm XLT-50

Max Temp
250°C

Min Temp
-70°C

Flash Point
185°C

Engineered for extended operation in heat transfer applications requiring precise temperature control ranging from -49°F up to 250°F. Duratherm XLT... down-arrow

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Duratherm XLT-120

Max Temp
66°C

Min Temp
-84°C

Flash Point
49°C

Engineered for long term operation in heat transfer applications needing precise temperature control ranging from -84°C up to 66°C. Duratherm XLT-1... down-arrow

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Duratherm XLT-120

Max Temp
150°C

Min Temp
-120°C

Flash Point
120°C

Engineered for long term operation in heat transfer applications needing precise temperature control ranging from -120°F up to 150°F. Duratherm XLT... down-arrow

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