Nonadecafluorodecanenitrile is primarily used in the development of specialized coatings and surface treatments due to its exceptional hydrophobic and oleophobic properties. It is often incorporated into materials to create water- and oil-repellent surfaces, making it valuable in industries such as textiles, where it is applied to fabrics to enhance stain resistance and durability. Additionally, it is utilized in the production of advanced fluoropolymers and fluorinated surfactants, which are essential in applications requiring chemical resistance and thermal stability. Its unique properties also make it suitable for use in electronic components and coatings for optical devices, where it helps reduce contamination and improve performance.