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![ExxonMobil Chemical Butyl Rubber Plant]( "ExxonMobil Chemical Butyl Rubber Plant")
Butyl rubber
Exxon™ butyl rubber is the foundation of today’s butyl rubber technology. Butyl rubber is a copolymer of isobutylene and a small amount of isoprene, providing for a highly saturated backbone. The primary properties of butyl rubber are excellent air-barrier performance, good flex fatigue and vibration damping. From innertubes to curing bladders, butyl properties are valued across a range of rubber products.
Benefits
- Low permeability to air, gases and moisture
- Vibration damping
- Low glass transition temperature
- Low modulus elastomer
- Low compression set
- Resistance to aging and to weathering from atmospheric exposure
- Wide vulcanization versatility
- Fast cure rates
- Processing safety: no nitrosamines or nitrosamines precursors
- Broad range of durometer and tensile strength properties
- Low filler content for specific gravity, cost-effective compounding
Products
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Exxon™ butyl rubber
Discover technical details and specifications for butyl rubber product grades.
View data sheets
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Tire innerliners – the key to air retention
Electric vehicles with underinflated tires lose battery range, so retaining air is key. Learn about an existing easy solution.
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Boost your tire performance
Innerliners made with Exxpro™ specialty elastomer keep air in the tires longer and boost vehicle performance.
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Why air retention matters
Learn more about ExxonMobil Chemical’s butyl rubber products and how tires with halobutyl innerliners maintain proper tire pressure, and better air retention brings better performance.
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Industries and applications
Featured resources
View highlighted news, events, technical papers and case studies below. To see our full collection of resources, browse our
Library.
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![ExxonMobil Chemical Library icon]( "ExxonMobil Chemical Library icon")
Gradeslate: 80 years of leadership in butyl technology
Reference the list of ExxonMobil Chemical’s butyl rubber gradeslate, including grades and typical applications.
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Video: Proper air retention can make all the difference
It’s the everyday moments that can easily go from simple to complex, good to bad, or economical to expensive – simply due to tire inflation. ExxonMobil halobutyl tire innerliners help to keep the air in your tires.
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Video: Air retention
We keep the air in your tires and the good times rolling.
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Airing a problem with tire safety and performance
Jeffrey Valentage, Global Tire Market Development Manager at ExxonMobil Chemical, explores an often neglected element that ensures the long-term safety and performance of tires. This article is available in English only.
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Sustained commitment: Supply, innovation, technology and quality
An interview with Kurt Aerts, Vice President, Global Specialty Elastomers and Butyl, ExxonMobil.
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