iON tires have a polyurethane sound-absorbing foam attached to their inner liner. This material alone accounts for a whopping 9.2-decibel reduction in resonant sound. Of course, it doesn’t ...
During trials, the bricks showed similar sound-deadening performance as foam and wood. He also made the shape available on Thingiverse, if you want to try printing or casting it yourself.
Cymat’s Aluminum Foam, marketed under the trade name of ... Along with its unique appearance, it has sound-absorbing properties making it ideal for applications requiring both sound absorption ...