I'm trying....really hard....to put dicor along that seam. I think I have the living room slide done ok....it's not pretty at all, but I think I have it sealed up. It took about four days.
It's such an impossible place to caulk. I can't see what I'm doing. I barely have room for the caulking gun to fit up there, let alone hold it at the right angle so it actually hits the place I want it to go. I tried using some plastic tubing to extend the tip of the caulking tube, but anything more than a few inches and it takes so much pressure to get it though that it blew a hole in the side of the dicor tube.
I'm trying to do the bedroom slide. It's even harder. I'm about to give up. Im just making a mess at this point.