Polyethylene oxide is widely used in various industries due to its unique properties, such as high water solubility and adjustable viscosity.

In the pharmaceutical sector, it serves as a binder, lubricant, and film-forming agent in tablet formulations. It is also utilized in controlled-release drug delivery systems and suspensions due to its ability to swell and dissolve slowly in water.

In the cosmetics industry, it acts as a thickener, emulsifier, and stabilizer in products like creams, lotions, and gels. Its water-soluble nature makes it suitable for use in personal care items.

In the food industry, it is used as a thickener in certain products to improve stability and texture.

In agriculture, it is incorporated into fertilizers and soil conditioners to enhance water retention and improve soil quality.

In the textile industry, it is employed in fiber production and fabric coating processes to increase durability and impart special properties.

In the manufacturing sector, polyethylene oxide is used as a viscosity modifier in water-based adhesives, coatings, and inks. It enhances the flow properties and stability of these products. It also finds applications in paper production and surface coatings.

Additionally, it is used in the production of hydrogels for medical applications, such as wound dressings and contact lenses, owing to its biocompatibility and moisture-retention capabilities.

In environmental applications, it is utilized in wastewater treatment as a flocculant to aggregate and remove suspended particles from water. Its effectiveness in improving water clarity makes it valuable in this field.

Furthermore, it has niche uses in technologies like 3D printing.