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[trainman0978]

I think using insulation in the entire truck is asking for problems, you have moving parts in the front doors, and it would be hard to flatten the insulation out under the rubber flooring, and I kinda think you would diminish its " insulating" qualities, not to mention you would have fiberglass dust all over your car for months. statistically - that can't be very healthy. That is another thing, clean your interior very well after doing this mod, fiberglass can do serious damage to eyes skin and lungs.

I think sound deadener around your compressor will be fine, I think the second skin site says that it has a heat resistance of around 500 degrees. Remember though, butyl mat ( damplifier , dynamat ) is a product designed mostly for vibration, and to prevent metal from resonating surrounding noises and vibrations. This is what made it so popular with car stereo enthusiasts. ( read BASS rattle elimination ) I would suggest a layer or two of damplifier pro, and then a single layer of overkill pro on top of that. This is what I did to my roof, and I don't even hear the rain on my roof anymore. And I do mean a VERY hard rain. The closed cell foam products like second skin are impressive to just have in your hand, and the fact that the material is just heavy in your hand further proves what it does, it is a acoustical sound blocker. Very similar to what you would find in a recording studio, just flat, where as a sound studio you would find a egg crate type surface - but basically the same thing.

Carpet padding on the back of the panels would offer some sort of benefit but I am holding out for my next order from second skin. The overkill pro is really thick, so I think I am gonna hold out for the overkill to do the back of the door panels and trim panels, and put overkill pro on the inside of the front doors against the outer door skin. I am gonna have to wait till after christmas though, cause I gotta buy everybody else something, as I have bought myself an abundance of goodies this year already.

As far as a adhesive goes, try 3M super #77 - spray adhesive , if this wont hold it nothing will. Just follow the directions. spray both surfaces and let it sit about a minute to tack up, then stick parts together.