Why does nobody talk about how hard it is to fix a warped book board after it dries?
I had a copy of an old atlas I was rebinding last Tuesday, and everything was going fine until I glued the book board and left it to dry overnight. When I came back the next morning, the board had warped BADLY like a shallow bowl, not even close to flat. I tried clamping it with some heavy weights for 6 hours, but it only got a little better. Then I tried dampening the opposite side and pressing it again, which sort of worked but left a weird texture on the surface. I think the issue was I used too much PVA glue on a thin board, but I'm not sure. Has anyone else dealt with a warped board that just won't flatten out, or do you have a go to fix that actually works?