question about fuel tank pad

Vinyl window sealing tape works fine also. It sticks to the tank and is about 1/8" thick. I used two layers. I also you the same stuff as sound deadener in floor boards, doors, panels etc... It is just a thinner version of the Dynamat is all it is. Get is at Lowes in the roofing area is where it is located. It is around $7 a roll. One roll did my tank with some left over.