Pentaerythritol tetra(2-ethylhexanoate) is widely used as a plasticizer in the production of flexible PVC products. It enhances the flexibility, durability, and workability of materials such as cables, hoses, and synthetic leather. Additionally, it is employed in lubricants and greases due to its excellent thermal stability and resistance to oxidation, making it suitable for high-temperature applications. In the coatings industry, it acts as a modifier to improve the performance and longevity of paints and varnishes. Its low volatility and compatibility with various polymers also make it a valuable component in adhesives and sealants.