EV car

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
  • 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