Guys, I did my truck close to ten years ago with the bubble foil on both sides material. It is still in place. I did the inside top of the cab, the back of the cab, the inside of the doors, floor of the cab (where the gas tank is) and the firewall. I used 3M Super Trim Adhesive (Yellow) #08090.
I would have to pull hard to get any of it off of the surface it's glued to. I put three layers in the cab top and doors. It is almost unbelievable how it has cut the sounds and has done well with the heat also.
The other material I am using on the firewall in addition to the bubble foil material, is the material found in a welding blanket. The fire wall heat in my truck is plentiful. Gotta stop that!
