Scanning electron micrographs of fluorocarbon rubber (FKM) and FKM and hydrogenated acrilonitrile-butadiene rubber blend of varying compositions; (c) 60/40
FKM/HNBR, (d) 40/60 FKM/HNBR, (c-1) sample (c) + KBM503, (c-2) sample (c) + KBM503,VN2, (d-1) sample (d) + KBM503, (d-2) sample (d) + KBM503,VN2.