Dynamat is a thin, flexible, easy to cut and mold sheet that actually stops noise causing resonance and vibration:
As a car operates, it generates noise. This noise is caused by the vibration from the internal components and from the road to the chassis of the vehicle. The chassis (doors, floors, roof etc.) transforms this vibration into audible noise. Dynamat transforms the vibration into silent energy.
Contains one 32" x 54" piece of Dynaliner for use on roofs, floors, behind trim panels, inside speaker enclosures and inside door pillars. Dynaliner provides maximum noise control when applied over Dynamat. Not for high heat areas.