In comparison to the formerly used tyres, contemporary radial tyres contain bromobutyl rubber that is found in its inner lining. This inner lining is used to hold the tyres’ air. Benefits in the use of bromobutyl rubber, include the tyre’s ability to self-seal with respect to small puncture holes, and improve its air retention performance and therefore the tyre’s durability.
In regards to air retention, the lining provides a barrier that prevents air from entering the tyre’s structure and degrading its rubber. Due to its polymer structure, a 100% bromobutyl polymer tyre provides the lowest air permeability rate. Ultimately, this ensures that the product life cycle of the tyre is longer, and contributes to the safety of motorists by avoiding tyre failure. An increase in a tyre’s longevity, requiring less tyre replacements also has an overall positive impact on the environment.