I've tried it before, it just gets sort of sticky when it gets hot. I don't remember the brand i used. I recently used peal and seal from Lowes and it worked pretty good. I also used Fatmat, it worked very well.
We use Lizard skin it is a wonderful product it is the best value for the money. You will notice an immediate difference in its sound dampening quality. Bed liner has no sound dampening qualities.