Thanks for all of the replies. I called the dealer and told 'em to spray in the Line-X.
One of the problems I had with my current truck bedliner (plastic) is stuff sliding around. So I bought a rubber bedmat to go over the bed liner. Stuff still slides around but not as bad. Also when the back of the truck is not loaded with anything, that bedmat gets blown around by the wind when on the highway. So when I do want to load something, I have to climb up in the bed and straighten out the mat. It is a real pain. Thanks again...LoadIt