Azelaic dihydrazide is primarily used as a crosslinking agent in the production of polymers and resins. It enhances the thermal and mechanical properties of materials, making it valuable in the manufacturing of coatings, adhesives, and composites. In the textile industry, it is employed to improve the durability and resistance of fabrics. Additionally, it serves as a stabilizer in the synthesis of polyurethane foams, contributing to their structural integrity. Its ability to form strong bonds with other compounds also makes it useful in the development of high-performance materials for automotive and aerospace applications.