Nafion® R-1100 resin is widely used in electrochemical applications due to its excellent proton conductivity and chemical stability. It is a key material in proton exchange membrane fuel cells (PEMFCs), where it serves as the electrolyte membrane, facilitating the movement of protons while preventing the mixing of reactants. This resin is also employed in chlor-alkali cells for the production of chlorine and caustic soda, where its selective ion transport properties enhance efficiency. Additionally, Nafion® R-1100 is utilized in sensors and actuators, particularly in humidity and gas sensors, due to its responsiveness to environmental changes. Its durability and performance in harsh conditions make it a preferred choice in various industrial and energy-related technologies.