Butyl rubber - IIR

Butyl rubber (IIR, Isobutylene Isoprene Rubber) is a synthetic rubber, a copolymer of isobutylene and a small amount of isoprene. After modification, it can derive brominated butyl rubber and chlorinated butyl rubber products. Butyl rubber has excellent chemical resistance and resistance to polar fluids, outstanding electrical insulation and good ozone resistance. Its special properties are low gas and moisture permeability and high shock absorption.