Triethylene glycol di(p-toluenesulfonate) is primarily used as a crosslinking agent in the production of polymers and resins. It facilitates the formation of durable and stable polymer networks, enhancing the mechanical and thermal properties of materials. This compound is also employed in the synthesis of specialty chemicals, where it acts as a reactive intermediate to introduce specific functional groups. Additionally, it finds application in the development of coatings and adhesives, providing improved resistance to environmental factors such as moisture and heat. Its role in creating high-performance materials makes it valuable in industries like automotive, electronics, and construction.