Most cars are very hostile acoustical environments. All the Engine noise, road/tire noise, wind noise and the cacophony generated by nearby vehicles added with light weight metal sheet, plastic interior trim and glass made an extreme challenge for quiet or sound quality on the road. There are two basic concepts that need to be addressed. First, reduce the noise coming from outside the car. This is the noise "floor" with which the sounds you want to hear must compete. Second, take care of the reflections, resonances and rattles that are generated by the the noises comprising the noise floor and your sound system itself. Sound deadening is the first, most basic step toward controlling vehicle acoustics.

The primary function of the sound deadening mats are basically add mass, lowering the frequency of the vibration below the threshold of human hearing, and their viscoelastic adhesive damps vibrations. In another word, the heavier the metal sheet and interior are, the less vibration.

The mats we have here are specially produced to achieve the in car environment's need. They come with PSA (Pressure Sensitive Adhesive) and Peel and release liner for easier installation. 60-70 Mil Nominal Thickness is provided to be the most effective spec for automotive.