Used as a surfactant in industrial coatings and firefighting foams due to its strong water and oil repellency. Provides excellent surface tension reduction, enhancing spreading and wetting properties on difficult surfaces. Commonly found in specialty formulations for water-repellent treatments on textiles, paper, and leather. Also employed in polymerization processes as an emulsifier, particularly in the production of fluoropolymers. Its fluorinated chain offers high stability and performance under extreme conditions.