Blends of ENR (epoxidized natural rubber) with CR (chloroprene rubber) were prepared throughout the composition, and important properties of the vulcanizates, both unaged and aged (air and oil) rubber, were determined. Dynamic measurement showed a single tan δ peak for the blends, and the peak temperature monotonically decreased with increasing CR content, resulting also in an increase of resilience at room temperature. Flex crack resistance of CR above room temperature, and oil resistance of ENR were increased in the blends.