Butyl rubber is a great option for shock absorption and has exceptionally low gas and moisture permeability and outstanding resistance to heat, aging, weather, ozone, chemical attack, flexing, abrasion, and tearing. It is resistant to phosphate ester based hydraulic fluids, and has excellent electrical insulation performance. Butyl is not recommended for use when in contact with petroleum oils and fluids.
Copolymer of isobutylene and a small amount of isoprene
Impermeable to most common gasses
High damping capabilities
Air tight and gas impermeable
(a property unique to butyl rubbers)
Low glass transition temperature
Good ozone resistance
Displays high damping at ambient temperatures
Good weathering, heat, and chemical resistance
Good vibration damper
Applications utilizing these materials
Sealant for rubber roof repair
Tubeless tire liners
Stoppers for glass bottles, medicine bottles, and pharmaceuticals
Used in sealants and adhesives
Butyl O Rings
Construction sealants, hoses, and mechanical goods
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