We live in a rapidly-evolving world with ever-changing requirements. Exxon™ butyl rubbers provide critical performance attributes, enabling key industries such as tire manufacturing, automotive, and pharmaceutical to adapt quickly and even gain market share. Our broad range of consistent quality products allows the development of specific solutions to many current and future challenges:

  • Environmental pressure and fuel efficiency demands force the automotive industry to work to decrease CO2 emissions continuously. Fuel-efficient tires with innerliners made with halobutyl rubber can reduce fuel consumption and emissions.
  • Although electric vehicles do not emit CO2, driving range remains a concern. Tire manufacturers can provide automakers with an extra boost by developing EV-specific tires with innerliners made with top-of-the-line Exxpro™ 3563.
  • Autonomous vehicles will drive and interact without human participation, increasing the risk of insufficient monitoring. Thousands of tire-related crashes already occur every year, and this will compel self-driving car manufacturers to develop technology and high requirements for their vehicles and tires.
  • The Pharmaceutical industry's development of new or improved medical drugs and medications increases the need for high-grade stoppers. Exxpro™ specialty elastomers are a cost-effective super-clean solution.

Exxon™ butyl rubber to top-of-line Exxpro™ specialty elastomers, Exxonmobil provides top quality products, technical expertise, and global supply reliability to help you succeed.



Product solutions

  • exxpro blue car arch

    Boost your tires for the new mobility

    Lower permeability than regular halobutyl polymers, making it perfect for tire innerliner applications to achieve better tire and vehicle performance.

    Learn more
  • ExxonMobil Chemical Butyl Rubber Plant

    Butyl rubber

    Exxon™ butyl rubber (BR) is a copolymer of isobutylene and isoprene with excellent weathering resistance, good aging resistance, low Mooney viscosity, vibration damping, low modulus, and low compression set.

    Learn more
  • ExxonMobil branded Tire


    Exxon™ bromobutyl is a brominated copolymer of isobutylene and isoprene (BIIR) with low permeability to air, gases and moisture, low glass transition temperature, and a wide vulcanization versatility with fast cure rates.

    Learn more
  • Rack of tires made with Chlorobutyl

    Chlorobutyl rubber

    Exxon™ chlorobutyl is a chlorinated copolymer of isobutylene and isoprene (CIIR) with improved compression set and better resistance to heat, ozone, and flex fatigue compared to regular butyl.

    Learn more
  • BIMSM Pharma Stoppers

    Specialty elastomer for pharmaceuticals

    Exxpro™ specialty elastomers are brominated isobutylene paramethylstyrene terpolymers (BIMSM) help meet the requirements for cleanliness, drug compatibility, low extractables, and leachable.

    Learn more
one car drive through the Exxpro tire gate to future world
blue tires

Featured resources

View highlighted news, events, technical papers and case studies below. To see our full collection of resources, browse our Library.
  • 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.

    Read more
  • ExxonMobil Chemical play button icon

    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.

    Watch the video
  • ExxonMobil Chemical share button icon

    Pioneers of innovation: The fathers of synthetic rubber

    Read how these pioneers have opened doors to further learning and exploration in their fields and beyond.

    Read more
Don’t see what you’re looking for? Check out Quick links to explore additional content.