Neoprene (Chloroprene) is an excellent all purpose rubber which was developed in the 1930s. It is chemically and structurally similar to natural rubber with like mechanical properties. Its resistance to oils, chemicals, UV, weathering , aging, and ozone is excellent. Compression set is superior to natural rubber and it is one of the few elastomers that does not support combustion. It will retain its properties up to 250 F. Exhibits superior resistance to gas permeability over natural rubber.