GLYCOL 101 - Two major differences between propylene glycol and ethylene glycol

The most notable differences between propylene glycol and ethylene glycol are viscosity and toxicity. Ethylene glycol-based fluids are less viscous than propylene glycol-based fluids and they generally provide superior heat transfer efficiency. Ethylene glycol is typically preferred for heat transfer applications unless toxicity is a concern. Propylene glycol-based fluids are used in applications where contact with drinking water or food and beverages could occur or when mandated by law because of its low acute oral toxicity. 

Not sure which type of glycol is in your system? Contact Glycol Blender to see if you qualify for free testing.

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