Fluoroelastomer -FKM / FPM
Fluoroelastomer ni synthique polymer elastomer irimo atome ya fluor kuri atome ya karubone yumunyururu munini cyangwa urunigi. Kwinjiza atome ya fluor bitanga reberi irwanya ubushyuhe buhebuje, kurwanya okiside, kurwanya amavuta, kurwanya ruswa no kurwanya gusaza kwikirere, kandi ikoreshwa cyane mu kirere, mu ndege, mu modoka, mu bikomoka kuri peteroli no mu bikoresho byo mu rugo.