- IIR Butyl rubber is a copolymer of isobutylene and a small amount of isoprene providing for a highly saturated backbone. The primary properties of butyl rubber are excellent air-barrier performance, good flex fatigue and vibration damping.

 

 - Available types are Butyl Rubber, Bromobutyl Rubber, Chlorobutyl Rubber.

 

 - IIR Butyl Near to Prime Products are provided which have more different properties than their prime grade about mooney viscosity, volatile matter, Ash content, organic acids content or they are start-up materials because the goods are near to prime materials but the goods have special technical data sheet. 

 

 - IIR Butyl Near to Prime product`s preferability reason is cheaper than their prime grade`s because users prefer them.

 

                        Sample IIR Bromobutyl Near to Prime Technical Specification 

                                          (Difference High Mooney Viscosity)