Firstly... What is Butyl?Butyl rubber (IIR), also called isobutylene-isoprene rubber, is a synthetic rubber and copolymer of isobutylene with isoprene. Butyl rubber is produced by polymerization of about 98% of isobutylene with about 2% of isoprene. It is a colorless viscoelastic material which is odorless, tasteless, has excellent impermeabil...
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