Recently, the industry has conducted an in-depth analysis of the processing and applications of polytetrafluoroethylene (PTFE) concentrated emulsion. Known as a "hidden champion" in chemical engineering, this aqueous dispersion delivers outstanding heat resistance, corrosion resistance, low friction, and high insulation, making it a critical material for new energy, electronics, construction, and consumer goods. With a solid content of around 60%, PTFE concentrated emulsion features excellent dispersion and adhesion, widely used in fuel cell gas diffusion layers, high-frequency PCB insulation, architectural membranes, non-stick cookware coatings, and specialty fiber manufacturing. It stably operates between -200β and 260β and shows strong chemical inertness. The review systematically summarizes core processes including dispersion polymerization, coating and sintering, fiber spinning, and film casting, and specifies safety guidelines such as storage temperature, anti-vibration, anti-freezing, and controlled sintering to support stable production and efficient application. As 5G/6G, hydrogen energy, and high-end manufacturing advance rapidly, PTFE concentrated emulsion will continue to unlock value and drive the high-quality development of the advanced materials industry.
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