Used as a surface modifier to provide water and oil repellency. Commonly applied in coatings for glass, metal, and polymer surfaces to enhance durability and resistance to environmental factors. Frequently utilized in optical fibers and electronic devices to prevent moisture absorption and improve performance. Also employed in microfabrication and MEMS technology to reduce stiction and improve release during manufacturing. Effective in creating low-energy surfaces for self-cleaning and anti-fouling applications.