It should work with one wrap, however if it continue I would suggest a second wrap.
No, this is not recommended for your stated application.
I used it on my Son's 1967 Ford Falcon Futura's hood 3 years ago and it's still in excellent shape. I used a heavier foam backed product on my diesel ramp truck to deaden noise, as this really only insulates against the elements, not noise. It probably does to an extent, but not on a loud diesel.
rub it down with an old burlap bag. the coarse material will remove a lot of the mess.
I don't see why not. It is sticky. But they do sell garage door insulation kits that have thicker insulating value.
I would say yes. It is sticky on one side and you would just cut to fit as required.