1. To make polyester compounds, and as a base for deicing solutions.
2. Used by the chemical, food, and pharmaceutical industries as an antifreeze when leakage might lead to contact with food.
3. It is used to absorb extra water and maintain moisture in certain medicines, cosmetics, or food products.
4. It is a solvent for food colors and flavors, and in the paint and plastics industries.
5. To create artificial smoke or fog used in fire-fighting training and in theatrical productions.
6. Propylene glycol is used as a skin-conditioning agent-humectant, solvent, viscosity-decreasing agent, and humectant in cosmetic formulations.