Post painting seams, that is.
I’m working on a couple of Eduard 1/48 biplanes. It’s my first venture into 1/48 aircraft and 1/48 biplanes. One is an Albatros DIII for the One True Scale campaign. That’s painted and waiting for decals to arrive. It’s holding together fine.
The other is a Nieuport 17 that a friend of mine started and didn’t want to finish. I had to do substantial seam repairs on the top and bottom. I covered almost the entire bottom with mr surfacer - a couple of coats and sanded it smooth. The top was better - not a very noticeable seam, but filled with mr surfacer and sanded smooth. Close check after priming and the seams were gone. Painted and still no seams. So I sealed it and put decals on and all is good. Tonight I was working on rigging and noticed that both seams had reappeared. The one on top is barely visible but the one underneath is quite noticeable. How did that happen?
I had this happen once before on a hurricane. I was pretty convinced that a seam reappeared but talked myself into thinking I just hadn’t been thorough enough. This time, I’m sure it was gone and is now back.