FFKM O-rings, made from perfluoroelastomer, represent the pinnacle of elastomeric sealing technology. These seals combine the chemical inertness of PTFE with the elastic properties of rubber, offering unmatched performance in extreme conditions. Known by trade names like Kalrez from DuPont, Chemraz, Parofluor from Parker, Simriz, Perlast, and others, FFKM materials contain over 70% fl... https://globalsealstech.com/ffkm-seals/