A bodyshop recomended this product. "Peel and Seal" from Lowes...in the roofing dept. It is tar wirh the aluminum backing. It IS thinner than other more expensive products. I used 3 rolls to do all four lv doors, rear tailgate and back luggage area walls. Each roll was only $13 and it molds very well to metal. I will use something thicker for the floor.
