As EVs lack engine noise, tire rolling sound becomes more noticeable, often perceived as intrusive and unpleasant. To combat this, manufacturers have been equipping EVs with “Silent Tires,” featuring acoustic polyurethane foam linings. However, this solution has presented logistical and cost challenges, increasing tire production expenses by up to 25%.

The new Laser-Fit process, developed by Henkel and 4JET, promises to streamline production and reduce costs. This method involves creating acoustic foam directly inside the tire from liquid materials at the end of the production line, eliminating complex logistics and manual steps.

Source: Henkel