Pyromellitic dianhydride (PMDA) is widely used in the production of high-performance polyimide resins, which are essential in the electronics industry for manufacturing flexible printed circuit boards and insulating films. Its ability to form thermally stable polymers makes it a key component in aerospace applications, where materials must withstand extreme temperatures. PMDA is also utilized in the synthesis of adhesives and coatings that require exceptional heat resistance and mechanical strength. Additionally, it plays a role in creating advanced composites for automotive and industrial applications, enhancing durability and performance under harsh conditions. Its chemical reactivity further enables its use in specialty chemicals and intermediates for various industrial processes.