Polyphenylmethyl dimethicone is widely used in self-lubricating liquid silicone rubber. It improves the lubricity of silicone rubber and enhances its release properties. It also helps reduce surface defects such as sticking, tearing, and roughness, resulting in a smoother and more aesthetically pleasing product surface. It plays a key role in improving the performance and quality of self-lubricating liquid silicone rubber, providing excellent lubricity, release properties, surface quality, temperature stability, chemical inertness, and durability.