Butyl Rubber Apr 2026

, also known as isobutylene-isoprene rubber ( IIR ), is a synthetic elastomer produced by copolymerizing isobutylene with a small amount of isoprene. It is highly valued for its exceptionally low gas and moisture permeability , making it the standard material for applications requiring airtight seals. Key Characteristics

It withstands most acids, alkalis, and polar solvents but is highly susceptible to petroleum-based oils, fuels, and hydrocarbon solvents. Common Applications butyl rubber

It has one of the lowest gas transmission rates among all rubbers, which is why it's used extensively in tire inner liners and tubes. , also known as isobutylene-isoprene rubber ( IIR

It has superior vibration-damping and shock-absorption properties, making it useful in automotive and industrial mounts. and heat aging.

It offers excellent resistance to ozone, weathering, UV radiation, and heat aging.