Reduce rolling resistance, reach an exceptional IPLR

With the radical changes in mobility happening now, we need more than ever before, maintenance-free tires with the lowest possible air-loss rates. Innerliners made with Exxpro™ 3563 enable exceptional IPLR performance (< 1.8%) affecting more than just energy efficiency. It impacts the vehicle’s safety, emissions and extends tire life. It’s a difference that can be measured with real data. Compared to the global average 80% halobutyl (HB)**/ 20% natural rubber (NR) innerliner blend, Exxpro™ 3563 delivers:

  • 12% improvement in in-use rolling resistance
  • 20-50% improvement in air retention

*Inflation Pressure Loss Rate

**HB acronym includes both bromobutyl and chlorobutyl

Gain a competitive edge with Exxpro™ 3563 in your tire innerliners


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    Increase tire life and performance

    Improved air retention impacts durability, traction, cornering, braking and vehicle handling.

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    Meet more stringent OEM specs

    Increased air retention helps meet the new tire-related fuel efficiency and emissions standards being implemented by vehicle manufacturers.

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    Meet expanding efficiency regulations

    Better innerliner performance helps minimize CO₂ emissions and boost fuel economy.

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    Improve in-use energy consumption (fuel or battery)

    Better tire innerliners help maximize fuel efficiency and battery range.

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    Well suited for today’s and tomorrow’s automotive trends

    Develop new tire designs that meet the increased demands created by electric and new energy vehicles (EV) and evolving driving cultures.

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    Gain a competitive edge

    Lead the marketplace by meeting tomorrow’s challenges today.

Advanced chemistry, advanced performance

Inclusion of high para-methyl styrene concentrations lead to lower segmental mobility and lower free volume, resulting in significant permeability reduction compared to halobutyl rubbers.



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Compound consistency

Compared to halobutyl, Exxpro™ 3563 provides compound consistency advantages:

  • Ease of manufacturing: lower heat shrinkage, higher green strength and good tack
  • Greater production output: better filler dispersion
  • Better air retention: reduced segmental mobility and bulky hpMS
comparison of polymers

  • European Rubber Journal: Why tire air retention matters now more than ever

    Exxpro 3563-based tire innerliners provide as much as 46% improvement in IPLR over current industry standard blends, reduces wear and rolling resistance, and improves vehicle handling.

    Read the white paper
  • ERJ Elastomers for Sustainability Top 10

    Read on to see where ExxonMobil ranks in ERJ's top 10.

    Read now
  • As published by SAE: Range anxiety? Geely talks about tire air retention

    A three-way collaboration between Geely Auto Group, Linglong Shandong Tire and ExxonMobil led to Geely changing its tire IPLR specification to < 1.8%.

    Read the article to find out why
EV car

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

    Rubber & Plastics News: How mobility trends are affecting new material development

    In this interview, Sujith Nair, Senior market developer, butyl polymers, discusses the impact of future automotive technologies, with elastomers like Santoprene™ TPV and Exxpro™ 3563 on vehicle performance.

    Read the article
  • ExxonMobil Chemical Library icon

    Exxpro in Tire Technology International magazine article

    With radical shifts happening in the mobility sector, connected, autonomous and electric vehicles are on the horizon. Having maintenance-free tires with the lowest possible air loss rates would be beneficial.

    Read the article
  • ExxonMobil Chemical Library icon

    ExxonMobil project heads E4S sustainability ranking in ERJ article

    ERJ's elastomers for sustainability (E4S) has top-ranked ExxonMobil for its new Exxpro specialty elastomer to advance the barrier performance of tire innerliners and in turn, extend the battery range of electric vehicles.

    Read the article

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