Poly(ethylene glycol) diglycidyl ether is widely used as a crosslinking agent in the production of polymers and resins. It enhances the mechanical properties and stability of materials, making it valuable in coatings, adhesives, and sealants. In biomedical applications, it is utilized for modifying surfaces to improve biocompatibility and for creating hydrogels used in drug delivery systems. Additionally, it serves as a reactive diluent in epoxy formulations, improving flexibility and reducing viscosity for easier processing. Its ability to form strong, durable bonds makes it essential in industrial and medical fields.