FFKM
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PERFLUOROELASTOMERS
Perfluoroelastomers (FFKM) an haɗa su da yawa daga tetrafluoroethylene, perfluoromethyl vinyl ether, da vulcanization point monomers, kuma suna da kyakkyawan juriya ga sinadarai, zafi, extrusion, da nakasar matsa lamba mai zafi.Sai dai wasu high fluorocarbon kaushi, ba su shafi kowane matsakaici, ciki har da ethers, ketones, esters, amides, nitriles, karfi oxidizing jamiái, habaka, acid, alkalis, da dai sauransu Yana da low permeability zuwa sunadarai da gas, da kuma mai kyau lantarki. kaddarorin.