Perfluorotridecanoic acid is primarily used in industrial applications due to its unique properties. It serves as a surfactant in the production of fluoropolymers, enhancing the performance and stability of these materials. Additionally, it is utilized in the formulation of coatings and sealants, providing water and oil repellency to surfaces. Its chemical resistance makes it suitable for use in harsh environments, such as in the manufacturing of specialty chemicals and advanced materials. In some cases, it is also employed in research and development for studying the behavior of perfluorinated compounds.