Perfluororubber is mainly composed of tetrafluoroethylene and perfluoroalkyl vinyl ether as the main monomers, copolymerized with a small amount of third monomers with vulcanization points. As its name suggests, all hydrogen atoms on carbon atoms in the polymer are replaced by fluorine atoms, and it has an extremely stable structure to high temperatures and chemicals, such as the high-temperature stability of polytetrafluoroethylene (PTFE), which can also resist corrosion from more than 1600 chemicals. Its excellent performance helps to maintain the integrity of the seal, reduce maintenance times, and improve safety. This outstanding practical value makes it have various special applications in industry, and its development and application represent the highest point of fluororubber development.
Perfluororubber is a high-performance and cost-effective sealing material, and it is still the most expensive rubber material in the world. Due to the significant cost savings in replacement, maintenance, and safety of perfluororubber, its application has gradually expanded from cutting-edge technology fields such as military and aerospace to civilian fields such as electronics, medicine, and chemical engineering in recent years. Generally speaking, the total life cost of seals should not only consider the purchase price of the seals, but also the service life and losses caused by failures, shutdowns, and repairs. In many cases, due to parking losses and the high cost of dismantling and reassembling equipment, the high reliability of perfluororubber is sufficient to prove its cost-effectiveness, not to mention its typically long service life.