67ramairowner, the Frost King is adhesive on one side and foil on the other side. It's about 1/4" thick, if I remember correctly. He put it on with a roller, and it stuck well and followed the contours of the floor. The main purpose out here in hot central CA was to keep HEAT out of the car. It seems to do that pretty well (better than the stock tarpaper in my cars does!). As a bonus, it's fairly quiet inside the car as well, even with stiff gears, four speed, and loud exhaust. No Lexus, but overall, it increased the "quality" feel of the car. When I do carpets in mine next time, SOMETHING other than paper is going in , that's for sure.
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Jeff 
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