TRUE "DYNO-MAT" WAS CREATED FOR THE CAR AUDIO GUYS TO GET RID OFF THE RATTLES. I USED IT IN THE DOORS AND FLOOR OF A CAMARO I BUILT. IT WORKED GREAT AS A HEAT AND NOISE BARRIER. HOWEVER HOME DEPOT DOSE NOT SELL IT. YOU NEED TO GO TO A CAR AUDIO STORE OR I KNOW JEGS SELLS IT.
