Poly(propylene glycol) bis(2-aminopropyl ether) is widely used as a curing agent in the production of epoxy resins. It enhances flexibility and toughness in the final product, making it suitable for coatings, adhesives, and sealants. Its amine functional groups enable it to react with epoxy groups, facilitating cross-linking and improving mechanical properties. This chemical is also employed in the synthesis of polyurethanes, where it acts as a chain extender or cross-linker, contributing to the material's elasticity and durability. Additionally, it finds applications in the manufacture of surfactants and lubricants due to its amphiphilic nature and ability to reduce surface tension. In the pharmaceutical industry, it is utilized as an excipient in drug delivery systems, aiding in the controlled release of active ingredients. Its versatility and compatibility with various materials make it a valuable component in numerous industrial and commercial applications.