Join Date: Feb 2009
Location: Northeastern BC
I used Gator Guard (Dominion Sureseal) in my old Nissan a few years back. I got it at CT. It's a 2-part urethane type finish. It's pretty tough stuff and the price is right. I put it on with a roller and a brush. Realistically, for a full-size, you'd probably need two kits. I found the trickiest part was seeing where you need to go over it again. It's a lot of work to do a neat job.
For one-part finishes like Duplicolor or Herculiner, I'd try Herculiner first. I've used the Duplicolor on other stuff, and it's definitely tougher than just paint, but I'm not convinced it's the best for a truck bed considering you basically have to do the same amount of prep work as a 2-part finish. On the other hand, it's very easy to fix scratches and dings.
If Princess Auto were a real girl, I'd ask her to marry me.