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A 20% propylene glycol solution that is intended for geothermal heat pump systems.




Product Overview

A ready to use solution that contains specially designed corrosion inhibitors that meet ASTM D1384 corrosion protection requirements. The low glycol content provides lower viscosity and higher heat transfer efficiency. 

This fluid has a freezing point of 18.5°F. 

Product Specifications

Recommended Use Temperature Range: -5ºC (23ºF) to 100ºC (212ºF)
Typical Properties of DOWFROST GEO 20 Fluid:
Composition (% by volume)
Propylene Glycol – 20
Performance Additive + Water – 80
Color – Yellow to Green
Specific Gravity – 1.017 - 1.027 25 / 25ºC (77 / 77 º F)
pH of Solution – 9.5 - 10.5
Reserve Alkalinity (min.) – 3.5 ml
Primary Chemistry: Propylene Glycol 

Features & Benefits

Formulated for geothermal systems


Intended for use in Geothermal heating and cooling systems

Related Products

DOWFROST™ Glycol Thermal Fluids

Dowfrost™ inhibited propylene glycol heat transfer fluids provide years of reliable corrosion protection in demanding applications, such as fermentation cooling, immersion freezing, HVAC, food and pharmaceutical applications, where propylene glycol solutions are preferred or required.

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