Dan64
Well-Known Member
I used it in my 64'. I used the 50 mil on the roof and inside of doors and quarters in front of wheel tubs, package tray, behind dash. I used the heavier 80 mil on the floors and firewall. I have Dynamat on my 31' coupe and it seems to be thicker but it also cost 3x as much and not worth it. I think it's all the same stuff when comparing the same mil thickness, get the best deal you can find.