Perfluoropolyether carboxylic acid is widely used in the formulation of advanced lubricants, particularly in applications requiring high thermal stability and resistance to harsh chemical environments. Its unique properties make it suitable for use in aerospace, where it serves as a lubricant for components exposed to extreme temperatures and oxidative conditions. Additionally, it is employed in the electronics industry to protect sensitive equipment from corrosion and wear, ensuring long-term reliability. The chemical is also utilized in the production of specialized coatings that provide water and oil repellency, making it valuable in the textile and automotive sectors. Its compatibility with various materials and ability to reduce friction further enhance its application in precision machinery and industrial equipment.