Has anyone had any experience with having either Line-X or Rhinoliner applied directly over a POR-15 treated cruiser tub, fenders, etc.? The local Line-X folks that I've talked to don't seem to be familiar with POR-15 (they've called their "home office" and don't seem to get any help either) They will not warrant their work unless the truck bed or any other surface is first sandblasted or otherwise stripped clean and then prep'd with an industrial grade epoxy primer. Supposedly this is because their product goes on at a surface temperature of 180 degrees - all other paints will blister off. Well, POR-15 is suppose to withstand temps of up to 600 degrees so - no problem right? Any comments or suggestions will help.