Consult this collection of heat transfer fluids to find those that will benefit your process.

Thermal Heat Transfer Fluid

MultiTherm PG-1 is a nontoxic, colorless and odorless food-grade heat transfer fluid that has an operating temperature above 600°F (316°C). In the food processing industry, the heat transfer fluid is used in indirect heating loops for frying and baking. It is acceptable for use as a heat transfer fluid in plants operating under the Federal Meat and Poultry Inspection Program. It does not contain any components recognized as hazardous chemicals under OSHA Hazard Communication Standard. Also, it is FDA certified, USDA acceptable, NSF HT-1 approved for incidental contact, Kosher certified, and food certified in Canada.

MultiTherm, (800) 225-7440,,

Heat Transfer FluidsCalflo-HTF-Pail.jpg

Calflo provides thermal and oxidative stability for longer fluid life and enhanced equipment stability. It is nontoxic, so it is safer for workers, the environment and the bottom line. With lubrication like this in the workplace, it will not only provide users reduced downtime and maintenance costs, it will also provide assurance that the machines, products and people are protected.

Petro-Canada, (888) 284-4572,,

System Cleaner Liquid Dissolves Sludge
Paratherm LC liquid restores thermal fluid system performance on the fly. Cleaning while the system operates, it dissolves and suspends sludge deposits that can reduce flow - and thus heat transfer - in larger continuously operated hot-oil systems. Compatible with mineral-oil-based fluids, it operates while the system does, eliminating the downtime and extra handling and disposal involved with flushing fluids or chemical cleaning agents.
Paratherm Corp., (610) 941-4900,

Heat Transfer System Cleaner
DuraClean Ultra is capable of cleaning sludge, coke and varnish from expansion tanks, reservoirs, processes and piping within a few hours. The heat transfer system cleaner has a light odor but maintains the aggressive cleaning action found with caustic solutions and chemical solvents. Engineered to clean quickly with minimal labor and downtime, users simply drain the existing fluid from the entire system or just the troublesome areas, circulate the fluid at 150°F (66°C) until the system is deposit-free, drain thoroughly and refill with fresh heat transfer fluid.
Duratherm Extended Life Fluids, (800) 446-4910,

Corrosion-Resistant Fluid
Designed to protect brass, copper, steel, cast iron, aluminum and other metals used in cooling and heating systems, Jeffcool coolants and heat transfer fluids contain corrosion inhibitors that attach to metal surfaces to passivate them. The ethylene-glycol- and propylene-glycol-based fluids can be used for process cooling.
Huntsman Corp., (713) 235-6303,

Fluids Offered in Many Chemistries
Available in a range of product chemistries, these heat transfer fluids deliver performance characteristics for stability, pressure, pumpability and other system operating requirements. Included are Dowtherm synthetic organic fluids; Syltherm silicone fluids; Ucon polyalkylene glycol-based fluids; and Dowtherm, Dowfrost, Dowcal and Ucartherm inhibited glycol-based fluids. The company’s global team of heat transfer experts offers a complete package of technical support.
Dow Chemical Co., (800) 447-4369,

Heat Transfer Fluids
Therminol heat transfer fluids meet the requirements of most chemical processes. Each chemical process has unique operating parameters that can be used by a design or process engineer to select the heat transfer fluid that will result in the best total performance. Therminol 55 can be used when only moderate temperatures are needed. Therminol 59 is best when combination heating and cooling conditions are present. Therminol 66 liquid-phase heat transfer fluids, as well as Therminol VP-1 and Therminol VP-3 vapor-phase heat transfer fluids, are preferred when high operating temperatures are required.
Solutia Inc., (800) 426-2463,

Nontoxic Heat Transfer Fluid
Dynalene SF is thermally stable at temperatures up to 600°F (316°C). The fluid has demonstrated performance over a range of temperatures without compromising system reliability. Recommended temperature range is 32 to 600°F (0 to 316°C).
Dynalene Heat Transfer Fluids, (610) 262-9686,

Tolling and Reclamation Services
Reclamation service can help users reduce costs by up to 50 percent when compared with new fluids. A qualified staff of chemical engineers provides pre-distillation and post-distillation analysis of reclaimed fluid. The company can reclaim most fluorinated oils, solvents and specialty chemicals.
TMC Industries Inc., (800) 772-8179,

Propylene Glycol Fluid
Safe-T-Therm is an inhibited propylene glycol designed to protect metals such as brass, copper, solder, steel and cast iron. The fluid’s formula also includes an orange dye for leak detection and an antifoam agent to minimize foaming during service. Using the propylene-glycol based fluid in place of brine solutions or uninhibited glycol/water solutions can lower maintenance costs and improves heat transfer efficiency.
Houghton Chemical, (800) 777-2466,

PFPE Fluids
Galden and Fomblin perfluorinatedpolyethelene (PFPE) fluids and H-Galden (HPFE) hydrofluoropolyether product lines have obtained the FM 6930 rating. Galden and H-Galden are fully synthetic products used as heat transfer fluids in the semiconductor, food, chemical processing and life science industries. Fomblin high-performance lubricants deliver clean, safe and non-flammable properties in contrast to silicone and hydrocarbon-based oils and greases.
Solvay Solexis Inc., (856) 251-3486,

Synthetic Heat Transfer Fluid
Thermaflo 660 is a high-performance synthetic heat transfer fluid designed for use in nonpressurized, indirect, liquid heat transfer systems. It offers exceptional thermal stability and resistance to oxidation in the temperature range of 32 to 653°F (0 to 345°C). It offers superior overall performance in the range of 150 to 653°F (65 to 345°C), where its kinematic viscosity is below 10 cSt and turbulent flow can generally be ensured.
Chem Group Inc., (877) 642-8182,

Heat Transfer Fluid with Corrosion Inhibitors
Oxygen and heat transfer fluid surface contact in a system’s expansion tank or elsewhere can cause metal corrosion and acidity. Xceltherm 500M inhibits the ability of oxygen to damage system components and the fluid, especially when materials of construction such as copper or brass are present. With an operating range of -80 to 500°F (-62 to 260°C), it can be used for heating or cooling. The operating temperature range allows a system designed for water to run at higher temperatures without pressure by switching to a hot oil product.
Radco Industries Inc., (630) 232-7966,