25% - 100% DOWTHERM SR-1 Inhibited Ethylene Glycol (5 Gal, 55 Gal, and 275 Gal Containers)

25% - 100% DOWTHERM SR-1 Inhibited Ethylene Glycol (5 Gal, 55 Gal, and 275 Gal Containers)

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Antifreeze Comparison Chart

 

Product Name Oral Toxicity Corrosion Inhibitors Operating Range Color
Ethylene Glycol DOWTHERM SR-1 Moderate Yes -60F to 250F
(-51C to 121C)
Fluorescent Pink
Food Grade Propylene Glycol DOWFROST Lowest - FDA Cleared Safe
for Accidental Ingestion
Yes, but less effective since ingredients are food safe -50F to 250F
(-46C to 121C)
Colorless / Water White
Propylene Glycol DOWFROST HD Low Yes -50F to 325F
(-46C to 163C)
Bright Yellow / Green

 

Summary (All Ethylene Glycol Properties Listed on Product Pages, See Below)

DOWTHERM SR-1™ ethylene glycol heat transfer fluid includes a specially designed package of industrial corrosion inhibitors. Dow ethylene glycol antifreeze solutions have an operating temperature range of -60°F to 250°F (-51°C to  121°C), and the glycol fluid is dyed fluorescent pink to aid in leak detection.

Ethylene glycol-based fluids are less viscous than propylene glycols. Therefore, they generally provide superior heat transfer efficiency and better low temperature performance. However, in applications where toxicity is a concern, propylene glycols such as DOWFROST HD and Food Grade DOWFROST should be used.