Select Your Region
DOWFROST™ Geo 20 is a specialty heat transfer fluid formulated with propylene glycol. It is intended for thermal transfer in geothermal heat pump systems (20% PG solution in water).
Product type: Heat transfer fluid
Recommended use temperature range: −5°C to 100°C (23°F to 212°F)
Concentration propylene glycol, % by volume: 20
Concentration performance additives + water, % by volume: 80
Color: Yellow to green
Specific gravity: 1.017–1.027 25/25°C (77/77°F)
pH of Solution: 9.5–10.5
Reserve alkalinity (min): 3.5 mL;
Primary Chemistry:
Propylene glycol (PG)
DOWFROST™ Geo 20 is a ready-to-use propylene glycol heat transfer fluid that contains specially designed corrosion inhibitors that meet ASTM D1384 corrosion protection requirements. The low glycol concentration of DOWFROST™ Geo 20 provides lower viscosity and higher heat transfer efficiency than higher-concentration fluid solutions.
DOWFROST™ Geo 20 has a freezing point of 18.5°F.
Flammability or explosion concerns with alcohol based thermal fluids
Corrosion or rust from poorly inhibited glycol fluids
DOWFROST™ Geo 20 is a premium specialty heat transfer fluid engineered for use in geothermal heating and cooling systems and geothermal pumps.
Strategically located across North America and EMEA for fast, reliable delivery. Every order, every time.
We’ve detected that you are located in a different region than the region selected on the website. Would you like to change your region?
Current Region: English - Canada