Chloroprene rubber has a history of more than 90 years since its industrialization started in 1931. It is a general- purpose synthetic rubber with excellent properties, such as good mechanical strength, good heat resistance, high weather/ozone resistance, good fluid resistance, and low flammability. Chloroprene rubber is widely used. This article shows the history, manufacturers, main lines of chloroprene rubber, and the formulation and function of each chemical additive for chloroprene compounds.