yooper
SILVER Star
There are sound and thermal insulation coatings on the market. This company is just one of them: http://www.secondskinaudio.com/ Pretty sure the coatings are all waterproof.
They have sound insulation coatings that go on the inside, and thermal reflective coatings that would go on your firewall in then engine bay or on the bottom of the tranny hump.
There are other companies out there.
Dynamat and it's ilk are laid down with adhesive. It would be VERY easy for water to get under there, stay there, and cause mischief. For a trail rig that you want to hose out, I think I would go with a coating or have something "portable" that I could remove from the floor for cleaning. Put some kind of insulation between the floor and the factory rubber mat. On the firewall inside the truck I think Dynamat or something similar is a great idea - there is a LOT of noise coming through there in your truck...
They have sound insulation coatings that go on the inside, and thermal reflective coatings that would go on your firewall in then engine bay or on the bottom of the tranny hump.
There are other companies out there.
Dynamat and it's ilk are laid down with adhesive. It would be VERY easy for water to get under there, stay there, and cause mischief. For a trail rig that you want to hose out, I think I would go with a coating or have something "portable" that I could remove from the floor for cleaning. Put some kind of insulation between the floor and the factory rubber mat. On the firewall inside the truck I think Dynamat or something similar is a great idea - there is a LOT of noise coming through there in your truck...