Marlotherm heat transfer fluids

Experience you can trust

Marlotherm® heat transfer fluids are well established and have a strong heritage, with 50 years of history in the industry. Building on Eastman’s already extensive chemistry expertise, Marlotherm brings additional products and insight to our existing heat transfer fluid product offerings. Our years of experience and expanded product portfolio allow us to provide clients with expert guidance for their heat transfer fluid needs and continue delivering superior value.

Support you can rely on

Eastman offers a wide range of heat transfer fluids as solutions for countless system applications. With our process development laboratories, we can help identify the most appropriate product to meet your demands—whether simple or complex. With our ongoing commitment to high quality and reliable manufacturing operations, proven supply chain and distribution experience, and world-class product technical support, we are a trusted partner for our most valuable asset—our clients.

TLC Total Lifecycle Care®

Busy engineers can easily lose track of their heat transfer fluid. It’s not something you deal with frequently or have necessarily been trained on. And without standard monitoring procedures, fluid history can be lost when people change jobs. Planning suffers, yet you must keep plants running, meet production schedules, and assure product yield and quality without unforeseen interruption––all on a tight budget. It’s a lot to ask.

We can help.

The TLC Total Lifecycle Care® program from Eastman is designed to support Marlotherm® throughout their systems' life cycle. This comprehensive program includes sample analysis, system design support, operational training, safety awareness training, start-up assistance, flush and refill fluids, and our fluid trade-in program. For more inf®ormation, visit here.

A free sample analysis kit

Engineers who operate and maintain manufacturing plants have complicated jobs. But monitoring your heat transfer fluid system should be easy. That’s why Eastman offers in-service heat transfer fluid sample analysis. Customers can access their specific test information via our new, advanced heat transfer fluid management tool, Fluid Genius™. is an all-in-one digital platform that gives you the ultimate edge. From sampling kits to expert guidance, our comprehensive service keeps you on track. The technology provides easy access to customer fluid testing results that reveal forward-looking insights to plan proactively for maintenance. Fluid Genius works for virtually any organic heat transfer fluid system. To learn more and request access to Fluid Genius, complete the following form. Our team of experts will reach out shortly to get you up and running on our system so that you can stay up and running on yours.

Products for your application

Marlotherm heat transfer fluids are designed for indirect cooling and heating of production, conversion processes, and energy recovery. They ensure dependable operation for a wide variety of system applications.

Marlotherm fluids are available in multiple products formulated specifically for pressurized and nonpressurized systems. They can help support safe operations, lower capital costs, and reduce maintenance costs.

Other heat transfer fluids

Eastman is proud to also offer Therminol heat transfer fluids. Learn more at

Selection guide

Download our latest heat transfer fluids selection guide. Selection guide

Let us help you find the right heat transfer fluid for your system. Request a quote

Unique to the market, Fluid Genius combines artificial intelligence with half a century of Eastman expertise to monitor and maximize the life cycle of heat transfer fluids for a myriad of system applications. Fluid Genius