Consequently, the tensile strength and
elongation at break show improvement by the addition of the graft copolymer. Although, from
overall mechanical properties, it could be suggested that the blending of NR with EPBM usually
display inferior mechanical properties as compared to the average properties of the constituent
rubbers; one may still be able to improve the weathering resistance of NR by blending it with
EPDM for outdoor applications. Suitable application for the NR/EPDM blend could be in
components demanding good weathering resistance and excellent dimension stability without
significantly affecting the properties of interest in the blends.