What type of material is used in newer Fords? All of my later model Ford headliners feel as if there is a semi solid material under the headliner. They don't have that tent like feel of the older cars.
Newer headliners are a fabric with foam backer glued to a pressed cardboard like material that is the shape of the headliner.
Some nothing, some have structural foam blocks in places to give it rigidity and some also add moulded plastic framework(mainly in sunroof cars). There are some that still use a tar paper type material that looks like the original dynamat and most of the time its painted over, which means it went on after the e-coat, but before final paint. The last 10 years or so they have harnesses that are glued to the backer for lights, switches, etc.
There can't be much on the roof of my F150, it's pretty noisy in a rain storm. I may have to drop the headliner this year, and install some Dynamat.
I have P & S on the floor and it seems to have worked well, but I would not use it under the roof. The stock-type fiberglass insulation with a little glue works just fine.
Has anyone ever used any of the products intended for use in the home theater category? I'll probably end up using something like this for the roof to eliminate weight gain in the worst possible area for handling... http://www.ebay.com/itm/SOUNDCOAT-1...oam-56-x-8feet-Adhesive-backing-/160936072531 or maybe this in limited quantities just about everywhere else.. http://www.fatmat.com/shop/100-sq-ft-rattle-trap-bulk-pack-install-kit-included-6582 And I've used this stuff in my work vans since it adds so little weight and kills that "cargo van drone" without spending much to do it. http://www.usafoam.com/acousticfoam/eggcratefoam.html
I wanted to see what FatMat was made of, and found this: http://forums.corvetteforum.com/aud...tmat-peelseel-and-other-asphalt-products.html