Exxon™ Bromobutyl Rubber is a brominated copolymer of isobutylene and isoprene (BIIR) with faster and more stable cure compared to CIIR. It offers a low permeability to gases and moisture, low glass transition temperature and a wide vulcanization versatility with fast cure rates. The ExxonMobil BIIR product range is suitable for a wide range of applications like tire innerliners, hoses, tank linings and membranes but also applicable for pharmaceutical stoppers and conveyor belts. Bromobutyl Rubber offers a range of polymer viscosities and cure responses, reflecting adjustments in functionality and additives content.
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