[rcrahn]

Looking to insulate and soundproof your cab? There is one great choice.
Try cool car ceramic.
We used it throughout the shell interior and trunk in our 1969 firebird. See photo. I am very pleased with the results. I spoke with the inventor and he told me something incredible. They take a electric griddle to shows and half of that griddle has been coated with coolcar, about the thickness of 4 credit cards thick. They turn the griddle on high and you can place your hand on the coolcar sprayed side. It is warm.
Try doing that with Rhino liner. Incidentially, he told me rhino liner and other bed liners contain solvents and they are flammable. Cool car is made of ceramic beads and will not burn.