Poly(propylene glycol) is widely used in various industries due to its versatile properties. In the manufacturing sector, it serves as a key component in the production of polyurethane foams, which are essential for insulation, cushioning, and packaging materials. Its ability to act as a lubricant makes it valuable in industrial machinery and automotive applications, reducing friction and wear.

In the personal care and cosmetics industry, it is utilized as a moisturizing agent and solvent in products like lotions, creams, and deodorants, helping to improve texture and stability. Additionally, it is employed in pharmaceuticals as a base for ointments, creams, and controlled-release drug delivery systems due to its non-toxic and biocompatible nature.

In the food industry, it functions as an emulsifier, stabilizer, and anti-foaming agent in processed foods and beverages. Its water-soluble and low-volatility characteristics also make it suitable for use in antifreeze and de-icing solutions. Overall, its adaptability and safety profile make it a crucial material across diverse applications.