spray on rubber. same thing but HELLA cheaper. it works, trust me. I had a $4000 stereo and I didnt hear a single rattle. did my whole car with just 3 cans of it. 2 for the back end alone because thats where most of the rattling is and I took out all that crap that comes in the car (stock) to deaden the sound and sprayed everywhere else. with just 1 can. door panels and rear panels. NO RATTLING!! I even sprayed my damn license plate. =) not a rattle!!
