How do I 'make at home' my own sound deadening material for my car without spending money on dynamat?
Lewis Dot Diagram Of Aluminum
Fiberglass or foam rubberThe air pockets in either one absorb and insulate soundThe thicker the betterCork works well tooThe cheapest way would be to make a fiber comforter of some sort, like a thick blanket, but it would hold moisture and rot that's not good unless you could keep it dry somehow!
