Polyurethane Foam Vehicle tires act as a drum for road noises in that the rubber absorbs bumps in the road, the same way the head of a drum absorbs taps from a drumstick. Expansion joints, potholes, and heaves pound the rubber, which compresses the air inside and transmits hollow thuds to the cabin. The hollowness of the tire functions like the cavity of a drum — allowing the noise to amplify and reverberate.
noise-cancelling spray foam insulation
Tire manufacturers have long been working to decrease road noise. One area where they’ve been successful is the inclusion of noise-reducing polyurethane foam inside the tire liner on the opposite side of the tire’s tread. The polyurethane foam is meant to absorb noise and vibrations from the road closest to their point of origin. The polyurethane foam acts in much the same way as the insulation in a sound studio.
These acoustically insulated tires have stealthily spread through the market to all the major tire manufacturers now offer them.
Just by looking, you wouldn’t know the polyurethane foam is there. The tire looks and functions in the same way as a standard car tire from the outside. It can be mounted and used the same way as any conventional tire, meaning the special polyurethane noise-canceling tires can be installed on any popular make and model of vehicle.
