If you are going to put it in the bed go with linex. I use the two part liner and spray it on($12 will get a shots gun). When I spray the inside of the cars it really cuts down the noise and heat transfer. It will really need to be prepped right. Generally I have sand blasted these surfaces but if you go at it with 180 grit, clean it real good and put some epoxy primer down for adhesion then two part liner and you'll have a great looking and lasting job.
Steve
