Manufacturing FFKM O-rings involves proprietary polymerization of tetrafluoroethylene and perfluorovinylethers. Compression molding forms precise cross-sections, followed by post-cure at 200°C for optimal properties. Suppliers like Global O-Ring use cleanrooms to avoid particulates. Extrusion suits custom profiles beyond standard O-rings. Quality checks include spectrometry for fluori... https://globalsealstech.com/ffkm-seals/