Pushing the limits of air retentionUpgrade your tires — and your business — with Exxpro™ 3563, the most advanced material for innerliners in the world. Exxpro 3563 delivers step-change performance in innerliner permeability, the most significant factor in improving air retention.

Exxpro™ 3563 — A step-change in air retention performance

Exxpro™ 3563 specialty elastomer

Advanced chemistry for advanced performance

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

Exxpro 3563 molecular structure

Step-change air retention

Compared to today’s most common innerliner composition (80% bromobutyl / 20% natural rubber),

Exxpro™ 3563 can improve air retention by

20-50%.

BIIR 22225

4

3

2

1

00 1 2 3 4 5

Low Mag

µm

Exxpro™ 35635

4

3

2

1

00 1 2 3 4 5

Low Mag

µm

Maximize your tire performance

Compete with the best tires on the market

Meet demands of future vehicles and driving cultures

Fully saturated structure (i.e. no unsaturation in polymeric backbone) leads to exceptional resistence, with respect to cure reversion, heat aging, and ozone.

Compound consistency

Compared to bromobutyl rubber (BIIR), Exxpro 3563 provides compound consistency advantages, including better filler dispersion and enhanced product consistency.

CH3

CH2Br

CH3

CH2 CH2 CHC

CH3

CH3

CH2 C

*Final percentage improvement will vary depending on your starting point and innerliner design.

Exxpro 3563 100 phr

Exxpro 3563 can easily be processed at 100 phr without any additional rubbers (like natural rubber) to yield ultra high barrier resistance. Step change innerliner performance can be achieved for next generation PCR and TBR tires, electric vehicle tires and in the future, tires for autonomous vehicles.

Exxpro™ 3563 – The next step in innerliner performance

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butylrubber.com

Perm

eabi

lity

Coe

ffic

ient

cc•m

m/(

m2 •d

ay•m

mH

g

HB/NRblend 80/20

Exxpro 3563/NRblend 80/20

Exxpro 3563100

0.50

0.45

0.40

0.35

0.30

0.25

0.20

0.15

0.10

0.05

0

Step-change in tire performance

15-20% decrease in air loss80/20

Baseline global average

40-50% decrease in air loss 100 phr

Exxpro 3563/NR 80/20 blend

Exxpro 3563100 phr

HB/NR blend 80/20

Exxpro™ compounds have more than 20% lower permeability

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