Poly(propylene glycol) bis(2-aminopropyl ether) is widely used as a curing agent in epoxy resin systems, enhancing flexibility and adhesion in coatings, adhesives, and composites. It is also employed in the production of polyurethane foams, where it acts as a chain extender, improving mechanical properties and durability. In the textile industry, it serves as a softening agent, providing fabrics with a smoother and more comfortable feel. Additionally, it is utilized in the synthesis of surfactants and lubricants, contributing to their stability and performance. Its versatility makes it valuable in various industrial applications, including automotive, construction, and electronics.