Propylene Glycol

What Is Propylene Glycol?

Propylene glycol is a synthetic liquid substance that absorbs water. Propylene glycol is also used to make polyester compounds and as a base for de-icing solutions. Propylene glycol is used by the chemical, food, and pharmaceutical industries as an antifreeze when leakage might lead to contact with food. The Food and Drug Administration (FDA) has classified propylene glycol as an additive that is generally recognized as safe for use in food. Propylene glycol from Keller Heartt is food safe and certain varieties can also be certified Kosher.

View All Products

Common Uses

Freeze Protection

Freeze Protection

Since Propylene Glycol is used to lower the freezing point of water, it's commonly used as a de-icer for airport runways and aircraft. It is also designed for use in hydronic systems for freeze and corrosion protection.

Automotive

Automotive

Propylene Glycol is commonly used as a substitute for Ethylene Glycol in low toxicity and environmentally safe antifreeze.

Food and Beverage

Food & Beverage

Typically used in frozen foods, ice cream and other frozen desserts. Other uses include: coffee-based drinks, liquid sweeteners, whipped cream and soda.

Polymers

Polymers

The majority of Propylene Glycol is used as chemical feedstock, during the production of unsaturated polyester resins - which produce sheet molding, printer toner and fiberglass wall panels.

Smoking

Smoking

Propylene Glycol is a key preservative in tobacco cigarettes, as well as a major ingredient in eLiquids and the cartridges used for E-Cigarettes.

Product Line Details

Product Line Details Product Key Applications Product Descriptions
TRUEGARD Propylene Glycol Usp Kosher 100% Concentrate
  • Food & Flavorings
  • Heat Transfer
Color: Yellow
TRUEGARD Propylene Glycol Usp Kosher 50/50
  • Food & Flavorings
  • Heat Transfer
Color: Clear
TRUEGARD Propylene Glycol Usp Kosher 100% Concentrate
  • Heat Transfer
  • Food & Flavorings
  • Closed Loop
  • Water-Based Hauling
-50℃ to 120℃ (60℉ to 250℉)
TRUEGARD Propylene Glycol Usp Kosher 50/50
  • Heat Transfer
  • Food & Flavorings
  • Closed Loop
  • Water-Based Hauling
-50℃ to 120℃ (60℉ to 250℉)

Learn more about Food-Grade Propylene Glycol

Typical Properties By Concentration

Properties * Conc. 60% 50% 40% 35% 30% 25%
Propylene Glycol 95% 60% 50% 40% 35% 30% 25%
Performance Additives and Water 4% 40% 50% 60% 65% 70% 75%
Appearance Liquid, Yellow Liquid, Yellow Liquid, Yellow Liquid, Yellow Liquid, Yellow Liquid, Yellow Liquid, Yellow
"Specific Gravity (15/15℃ 60/60℉)" 1.055 - 1.065 1.050 - 1.059 1.043 - 1.054 1.035 - 1.042 1.034 - 1.042 1.029 - 1.038 1.024 - 1.034
pH 50% glycol 9.0 - 10.5 9.0 - 10.5 9.0 - 10.5 9.0 - 10.5 9.0 - 10.5 9.0 - 10.5 9.0 - 10.5
Reserve Alkalinity (min) 12 6 6 4 4 3 3
Freeze Point Max -22℉ / -31℃ (as 50%) -49℉ / -45℃ -22℉ / -31℃ -4℉ / -20℃ 4℉ / -16℃ 10℉ / -12℃ 15℉ / -10℃

*Concentrate based on volume of Propylene Glycol, mixtures based on volume of TRUEGARD brands
Typical properties, not to be construed as specifications. As use conditions are not within its control, Keller-Heartt does not guarantee results from use of the information or products herein, and gives no warranty, express or implied.

Live Chat Newsletter Signup