Perfluoropolyether carboxylic acid is widely used in the formulation of advanced lubricants due to its exceptional thermal stability and chemical resistance. It is particularly valuable in high-performance applications such as aerospace, where it ensures smooth operation under extreme conditions. Additionally, this chemical is employed in the production of coatings that provide water and oil repellency, making it ideal for use in textiles and protective gear. Its unique properties also make it a key component in the development of specialized fluids for electronics, where it helps prevent corrosion and enhance performance.