The Fat Mat Rattle Trap is 80 mil thick. I got mine on Amazon and it was a good deal. It went down well, had a good stretch with no tearing, the Dyna Mat tends to tear if over-stressed. I used a heat gun to get it to lay down in odd contours. I'm using it under my roof, no headliner yet, but looks good. Last summer was HOT. But it helped cool off the car inside. The inside roof surface was always cool even on 100* days. http://www.fatmat.com/shop/25-sq-ft-rattle-trap-bulk-pack-install-kit-included-6585
The Jalopy Journal
