Tributyl trimellitate is widely used as a plasticizer in the production of polyvinyl chloride (PVC) and other polymers. It enhances the flexibility, durability, and workability of PVC products, making it suitable for applications such as cables, flooring, and automotive parts. Its high thermal stability and low volatility make it ideal for use in environments requiring resistance to heat and prolonged exposure. Additionally, it is employed in the manufacture of adhesives, coatings, and sealants, where it improves performance and longevity. Its compatibility with various resins and polymers further extends its utility in industrial and consumer goods.