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Exo Endosol™ Ethanol-Based Geothermal Fluid

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Exo Endosol+™ Ethanol-Based Geothermal Fluid is a premium product, with both excellent heat transfer characteristics and a long life expectancy. The full strength version, Exo Endosol 101, is straight denatured Ethyl Alcohol (Ethanol), plus corrosion inhibitors. Ethanol is a non-toxic alcohol geothermal fluid, making it an attractive alternative to Methanol (GeoChill+ Methanol-Based Geothermal Fluid). It also has several key benefits over Glycols– less maintenance, more economical price point, and less viscosity in cold temperatures. Exo Endosol is designed for use in closed-loop geothermal systems.

Exo Endosol 101 Safety Data Sheet

Freeze Point Chart – Exoendosol 101

Standard Dilutions:

Exo Endosol 101 Exo Endosol 201 Exo Endosol 250
100% Ethanol 25% Ethanol 50% Ethanol

Standard Packaging:

Exo Endosol Ethanol-Based Geothermal Fluid is available in 5 gallon carboys, 15 and 55 gallon drums, 275 gallon totes, and full bulk tank trucks.


For pricing, product customization, or more info, call our heat transfer fluids specialist:




See also:

Did you know that it’s important to use the right kind of water in your closed-loop geothermal system? See our Water Specification Sheet.