A isobutylene-isoprene copolymere derived from a reactive butyl rubber with a chlorine component.
Resistance and properties:
The properties of CIIR are similar to the properties of Butyl rubber. However, the ozone and high temperature resistance is better. CIIR rubber is suitable for continuous use at temperatures from – 50 degrees Celsius (Tg – 65 degrees Celsius) up to 120 degrees Celsius.
There are no explicit poor qualities known of CIIR.