POR15, undercoat, or sprayon bedliner?

I can't wait to try the Eastwood product. It's true that the POR hardens really fast. I haven't figured out a way yet to get it to stay good. In my experience, once that can is open, either use the whole thing or throw it away. Not very cost-effective that way. I found it really easy to cover though, and streak-free.

As for that peeling situation, I wonder how they prepped it. You don't have to paint over rust, if you follow their directions to paint over steel (though it is supposed to adhere to rust the best, chemically). Still, it will be interesting to see how my underbody holds up over time. I'm not too worried about it, but if it does peel, I'll just use a different product.