I looked up seam sealer at O'Rielly auto. They have a few to chose from, but the Bondo brand looks like what I need, only down side it comes in a caulking gun size tube for $15. I was hoping for a smaller tube, didn't plan to do the whole truck. But then again, it is the cheapest, small tube ones at West Marine and the Rain Forrest cost more, so I guess I just toss the rest. I'm sure the next time I need it, it will be hard.
Thank you!
Tom