Our automotive upholstery shop in Seattle specializes in soundproofing cars and trucks. We've found DexDamp sound dampening sheets are an effective way to muffle road noise and engine vibration. It won't elminate sounds, but it dramatically reduces them.

before DexDamp

To get a better idea how it works, try this experiment. Tap your knuckles on the outside of a car door panel. Next, place the palm of your other hand on the same door panel. Keeping your palm in place, tap the door like you did the first time. The difference in pitch and volume gives you an idea how a sheet of DexDamp works.

Here are some examples of DexDamp in action:

DexDamp is a non-curing, light-weight, self-adhesive mastic used to reduce structure-borne vibration. It is processed with an aluminium constraining layer.

DexDamp's advanced formulation offers superior damping performance at a reduced weight over traditional mastic constrained-layer and asphaltic extensional dampers. It is odourless, non-staining and compatible with automotive treatment baths and finish processes. DexDamp is manufactured in accordance with ISO 9001/14001 quality assurance system.