Rubber composition, method for preparing same, fuel hose and fuel feed circuit incorporating same

Crosslinkable rubber composition able to be extruded to form an inner layer of a fuel hose for a motor vehicle, the composition being based on at least one fluoroelastomer (FKM) and comprising a filler and a micronised powder of at least one fluorinated thermoplastic polymer which are dispersed in said at least one fluoroelastomer, wherein the composition comprises said micronised powder according to a quantity greater than 20 phr (phr:

• parts by weight per 100 parts of elastomer(s)) and wherein the filler comprises at least one inorganic filler having lamellas which has an aspect ratio greater than 30 and which is based on a phyllosilicate chosen from kaolinite and micas, or is based on a talc, said aspect ratio being defined as being the ratio of an average largest dimension over an average smallest dimension of the lamellas, said ratio being measured by the scanning electron microscopy technique.