what is pfa

PFA stands for perfluoroalkoxy alkane, which is a type of fluoropolymer. It is a copolymer of tetrafluoroethylene and perfluoroethers, and its properties are similar to those of polytetrafluoroethylene (PTFE) . PFA has better anti-stick properties and higher chemical resistance than PTFE, but at the expense of lesser scratch resistance. PFA is used for flexible and reusable medical equipment, pharmaceutical and semiconductor devices when chemical resistance, high purity, and flexibility are required. It is also used in plastic lab equipment or as sheet linings for chemical equipment. PFA is more resilient and resists stress cracking by almost all solvents and chemicals, and it is temperature resistant, so it can be used in both very hot and very cold environments. PFA is also used in the legal context as an abbreviation for Protection From Abuse, which is a civil proceeding meant to prohibit one party from having contact with, harassing, abusing, stalking or communicating with the other party.