Kayteg1 wrote:
Spray on bedliner is judged the toughest finish in the World, but I don't know how well it will stick to the wood.
Epoxy penetrates the wood, so it will never peel and also makes the wood much stronger.
I think for best protection would be epoxy and then bedliner.
I'd probably agree there. There are paint-on epoxies that come to mind like West System Epoxy, which would at least seal the ends and keep water away from the exposed wood. From there, priming and adding a bedliner would ensure a long seal, as well as protection against what rocks get tossed up from the road.