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Hankook improves sound-absorbing tyre technology.

Kumho Asiana
Posted: September 12, 2017 at 7:40 am   /   by   /   comments (0)

South Korea’s Hankook Tyre has updated its sound absorber technology with a new foam and adhesion process that further reduce tyre weight. The acoustic foam is now being adhered with partial coverage of a heat-resistant silicone-based glue instead of being fixed in place with a full-surface coating.

This updated adhesion process in conjunction with the lighter-weight acoustic foam allows for further weight optimization, Hankook said. The new materials also better resist heat resulting in improved load-bearing capacity and durability, particularly under full-load conditions and at top speeds, the tyre maker said. Hankook’s original sound-absorber technology was introduced in 2016 to help reduce interior noise.

It has been used in original equipment tyres on the Audi RS5 Coupé, Audi Q7/SQ7 SUV, and the new Opel/Vauxhall Insignia. With Hankook’s sound-absorber tyres, the noise level inside the vehicles drops by as much as 5 to 7 dB(A). Light weight, sporty UHP tyres with a low aspect ratio but large resonant cavities tend to benefit most from the technology, according to the company.

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