Glycol-Based Heat Transfer Fluid Solutions
Douglas ProTech provides a range of custom thermal fluid products to keep facilities running with reliable freeze, burst, and corrosion protection and flowability in extreme high and low temperature applications, with formulations specific to different system needs.
The Douglas ProTech commercial thermal fluids line includes HTF Heat Transfer Fluid, and HTF Pro Heat Transfer Fluid. Both products contain inhibited propylene glycol, with custom formulation options to meet specific system needs.
Keep Your Facilities Running Smoothly
Douglas ProTech thermal fluid products offer increased flowability, lubrication and effective burst protection in extreme high and low temperature applications, including HVAC, closed water loop refrigeration, chillers & boilers, food & beverage processing, solar heating, energy production and distribution, semiconductor, pharmaceutical, geothermal, railroad, and other systems and industries.
Effective Heat Transfer
Effective heat transfer fluids, providing effective flowability, heat capacity and conductivity.
Wide Temperature Range
Can be used in a wide range of temperatures, making them suitable for multiple industrial systems applications.
Corrosion Protection
Provides additional protection against corrosion of steel, copper and aluminum during long term use in closed systems with our inhibitor solution.
Leak Detection
Can identify system leaks quickly with leak detection dye available in red, blue or UV – an add-on option at no additional cost.
Food Grade
HTF Pro is NSF Certified (National Sanitation Foundation) for HT1 ‘incidental food contact’ and HT2 ‘nonfood contact’ food applications, making it approved for use where incidental food contact may occur with the process water.
Improved Safety
Non-flammable, non-toxic, and readily biodegradable, a safer option for various applications.
Reduced Environmental Impact
Our glycol-based thermal fluid formulations are Generally Regarded as Safe (GRAS) and do not contain per- and polyfluoroalkyl substances (PFAS), or “forever chemicals”.
Made in the U.S.A.
Convenient shipping to all areas from our facility in the heartland of America in Liberty, Missouri.
HTF Pro Heat Transfer Fluid by Douglas ProTech
HTF Pro by Douglas ProTech is a heat transfer fluid containing inhibited propylene glycol. This non-toxic formulation has an inhibitor solution to provide additional protection against corrosion of steel, copper and aluminum during long term use in closed systems, delivering dependable protection and performance.
HTF Pro contains 100% propylene glycol and should be diluted with deionized water, with the dilution rate to be determined by the customer’s specific application requirements. A leak detection dye option (in red, blue or UV) can be optionally added to HTF Pro at no additional cost.
HTF Pro is NSF Certified (National Sanitation Foundation) for HT1 ‘incidental food contact’ and HT2 ‘nonfood contact’ food applications.
HTF Pro is available in:
Properties:
| Brand | Douglas ProTech HTF Pro |
| Recommended Use | Heating and Cooling |
| Product Type | Glycol-Water HTF |
| Fluid Base | Inhibited Propylene Glycol |
| Temperature Use Range in °F(°C) | 0 to 250 (-18 to 121) |
| Freezing Point in °F(°C) | -60 (-51) *when diluted to 60% |
| Maximum Operating Temperature in °F(°C) | 250 (120) |
Douglas ProTech Custom Formulations
Douglas ProTech specializes in custom thermal fluid solutions, offering different ratios or formulation options based on specific system needs. Custom Thermal Fluid blends are available in drums, totes and bulk tanker truckloads.
If you have an application that needs a custom formulation, or if you’re not sure which formulation would be best, call us for a consultation.
Applications:
HVAC, closed water loop refrigeration, chillers & boilers, chill water and hydronic heating loops, secondary heat transfer loops, food & beverage processing, chilling and freezing, cold room dehumidification, solar and radiant heating, energy production and distribution, semiconductor, pharmaceutical, geothermal, railroad, and other systems and industries.
Ingredients:
Glycols in varying percentages. Custom options:
- Inhibitor – buffer package to prevent corrosion and slow the formation of glycolic acid
- Leak detection dye in red, blue, or UV, available at no additional cost
- Wide range of custom packaging and shipping options
Application Guidelines
Refer to system installation and maintenance manuals for specific instructions.
FAQs - Commercial Thermal Fluids
Why do we add an inhibitor to our glycol formulations?
We often come across companies using uninhibited glycol, and wonder why their system is failing. Many users are unaware that there’s the choice of inhibited or uninhibited for their glycol.
We include inhibitors in our formulations since they prevent corrosion, prevent chemical reactions between dissimilar metals, act as a buffer against formation of acids, and prevent drawing metals like zinc out in a system. Inhibitors leave a micro-thin coating over the system, and a certain amount continues to stay in solution. Corrosion is a particular concern in heating, ventilation, and air conditioning (HVAC) systems that use brass fittings.
We offer both inhibited and uninhibited glycol and there’s a place for both, though most systems are better off with inhibited glycol.
What's the benefit of adding a leak detection dye to glycol?
Our formulations help our customers identify leaks in their system with an optional leak detection dye that can be added to the product at no additional cost. Red, blue, and UV dyes are available, as well as custom color options upon request.
Is Douglas ProTech's propylene glycol food grade?
Our HTF Pro is NSF Certified (National Sanitation Foundation) for HT1 ‘incidental food contact’ and HT2 ‘nonfood contact’ food applications, making it approved for use where incidental food contact may occur with the process water.
Do Douglas ProTech thermal fluids contain PFAS?
Our glycol-based thermal fluid formulations are Generally Regarded as Safe (GRAS) and do NOT contain per- and polyfluoroalkyl substances (PFAS), or “forever chemicals” – persistent pollutants that can accumulate in the environment and human bodies, raising concerns about potential health and environmental risks. Douglas ProTech’s thermal fluid formulations are non-toxic, non-flammable, and readily biodegradable, and thus a safer option that can be used in many applications.
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