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Cork as sound deadener? Recommend other materials to absorb noise.
I have been pretty obsessed with killing the road noise in my car, but without spending a ton.
Currently, my doors have three layers of Resisto (asphalt based roofing mat) and a layer of heavy foam based carpet underlay. The floor of my car, including the trunk floor has two layers of foam based carpet underlay. This is all on top of the stock deadener. I got the foam carpet underlay for free, which is why I have been using it everywhere. However, the stuff doesnt seem to kill road noise as much as I hoped so I am thinking maybe there is better material out there to absorb road noise.
I notice that in music rooms or recording studios, they use cork to absorb sound. Do you guys think this would be a good idea to use in the car? I always read about people using carpet underlay, peel and seel, dynamat etc... but never cork. The stuff is only about 3mm thin and fairly expensive, so I dont see myself using anymore than 3 layers on the floor and door.
Suggestions on other sound absorbing materials welcome. I dont really want to go for an aftermarket mat type material because those are expensive and seem more focused on killing vibrations, rather than absorbing sound.
Last edited by nobb; 03-21-2008 at 05:59 PM.
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