Butyl (IIR-Isobutylene-Isoprene) Rubber

A polymer of isobutylene with small amounts of isoprene. This insulation and jacketing material is characterized by excellent resistance to oxidation and aging, exceptional ozone resistance and very good electrical properties. Has good resistance to moisture, physical abuse and chemicals, but is alkali-sensitive. Uses include power cables, apparatus and equipment leads, control cables, etc.