Kukaniza Kwa Chemical Kwambiri: mphete za FFKM O-rings zimagonjetsedwa ndi mankhwala osiyanasiyana, zosungunulira, ma acid, ndi zinthu zina zowononga, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito pofunafuna mankhwala opangira mankhwala.
Kulimbana ndi Kutentha Kwambiri: FFKM O-mphete imatha kupirira kutentha kwambiri mpaka 600 ° F (316 ° C) popanda kusweka, ndipo nthawi zina, mpaka 750 ° F (398 ° C).