52 Carl, ya know.... I have the mixing gun and panel adhesive here I actually thought about that, but went ahead and just finished the job with seam sealer. I should have gone with that first thought. The stuff is amazing, I replaced box sides on my '94 F150 about 5 years ago with it and no movement or cracking despite a lot of abuse.
At any rate, I got it smooth enough for now, it's just a driver and very much looks overall look a work in progress anyway (and it is). I'll dig it out and redo it when the time comes.
Interestingly enough, it appeared someone else had already dug the factory sealer out, it was completely devoid of any sealer. When I blew it out with compressed air, it was just going straight into the cab, and I couldn't find any trace. I imagine whoever did that probably assumed (as I did when I looked at it) that the outer cab slid over a lip and that water would shed off. The whole truck has been in primer since the 90s. No wonder it was leaking!
Never a dull moment.
