For over two decades, Duratherm Extended Life Fluids has specialized in servicing highly-demanding heat transfer applications. Processes like Blow Molding, Injection Molding and Extrusion typically use small, open to atmosphere temperature control units which are extremely susceptible to oxidation breakdown which, if left unchecked, will result in heavy sludging, plugged lines and molds not to mention lost production and revenue.

Duratherm’s many grades of heat transfer fluids, rated for use from -120F to +650F are all formulated with an exclusive additive system that not only ensures the highest level of oxidation and sludge protection available but also protects dies, molds and temperature control systems from corrosion, erosion of metal surfaces (aluminum) and offer compatibility with yellow metals such as copper.

If your systems are already plagued with sludge Duratherm can help there too. Complimenting their full line of long lasting heat transfer fluids is a complete line of heat transfer system cleaners. From emergency downed system revivers to cleaners capable of running production while effectively dissolving sludge and carbon build up, Duratherm has a system cleaner suitable for every application and production schedule.

Heat Transfer Fluids

- Longer, cleaner running service.
- 9 fluids operating from -120°F to 650°F to meet most applications required.
- Designed to meet equipment manufacturer (OEM) and customer specifications.
- 100% compatible replacement and custom fluids available.

System Cleaners

- Industries first and only system cleaners able to run production while cleaning.
- Preventative maintenance to emergency downed system revivers.
- System cleaners to fit every application and production schedule.
- Avoids costly downtime.

Additional Company Information:

About Us

Who We Are...

For over 25 years we have been servicing the heat transfer fluid industry worldwide with quality, effective and innovative products ranging from heat transfer fluid and related products, to thermal oils, thermic fluids and specialized lubricants.

Working closely with equipment manufacturers and our customers, we have gained an intimate and unrivaled understanding of real world concerns for heat transfer fluids, including pioneering the development and use of system cleaners as a maintenance tool.

What We Do...

We offer the industry’s most expansive line of heat transfer fluids. Compatibility with any system and heat transfer fluid is now achievable from a single vendor. A full range of environmentally responsible thermal fluids and unique and innovative system cleaners make us your single source for all aspects of heat transfer fluids (also called hot oils, thermic fluids or heat transfer oil).

We also offer free technical support, so regardless of what heat transfer fluid you are currently using, contact us for support, including a complimentary fluid analysis.

What Makes Us Different?

Our world-class customer service would be pointless without cutting edge heat transfer fluids, shipped same day from one of our convenient warehouses. All heat transfer fluids are available in as small as 5 gallon pails and all major credit cards are accepted for quick and easy order processing.


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