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A formulation of ethylene glycol that features one of the highest maximum use temperature of any glycol, operating temperature ranges -60F to 350F. The fluid is dyed fluorescent orange to aid in leak detection.




Product Overview

DOWTHERM 4000 inhibited ethylene glycol (EG) is comprised of about 92% EG and 8% corrosion inhibitors and has a bright fluorescent orange color. The lower EG content allows for a higher concentration of corrosion inhibitors which in turn means DOWTHERM 4000 is capable of operating at higher temperatures than DOWTHERM SR1 i.e. from -20 F to 350 F. This makes DOWTHERM 4000 a higher end, niche type product which is also capable of providing freeze protection down to -60 F.

End Markets: Aerospace & Aviation; Chemical & Petrochemical; Chemical & Petrochemical; Energy Generation & Utility; Energy Generation & Utility; Facility Construction & Management; Facility Infrastructure; General Industrial; Heavy Industry; Maintenance, Repair & Operations; Oil & Gas; Oil & Gas


Heating, Ventilation & Air Conditioning (HVAC)
Chill water & hydronic heating loops
Geothermal (ground source heat pumps)
Snow melt & Turf heating systems
Solar hot water heating
Fire water sprinkler systems
Ice skating rinks
Cold storage, refrigerated warehouses & supermarkets (secondary loop)
Thermal Energy Storage (TES)
Related Applications: Aerospace; Air Preheating; Blow Molders; Boilers; Chillers; Chillers; Cooling Towers; Distillation Units; Facility Management; Heat Exchangers; Heat Transfer Skids; Hot Oil Heaters; HVAC; HVAC; Jacketed Reactors; Mechanical Contractors; Mechanical Contractors; Paper & Cardboard; Plastics Forming; Power Cogeneration; Radiant Heating; Snow Melt; Solar Hot Water Heating; Waste Heat Recovery

Product Specifications

Ethylene glycol-based fluid (92%)
Fluorescent orange
Increased concentration of inhibitors
Efficient heat transfer
Operating range: -20 to 350° F for heat transfer
60° F for burst protection
Primary Chemistry: ethylene glycol 
Chemistry: Ethylene Glycol; Ethylene Glycol
Functions: Heat Transfer Fluid; Heat Transfer Fluid; Oil

Related Products

DOWTHERM™ Glycol Thermal Fluids

DOWTHERM™ inhibited glycol-based fluids are specially formulated with heavy-duty industrial inhibitor packages that prevent corrosion. The inhibitors are easily maintained, long lasting and replenish-able, which means intervals between fluid changeouts are extended and fluid expense is minimized.

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