AuSable Brand Propylene Glycol Pint, Quart, Half Gallon, Gallon Quality Lure & Bait Ingredient Propylene Glycol is used as an anti-freeze for many dirt sets but is mainly used for anti-freeze in urines. This is a great product to have during the cold season. The use of Propylene Glycol as a coolant is becoming more common mostly because its environmentally friendly and non-toxic.
