ORIGINAL: Gray Beard
I straighten out small warps with the covering. I quit using wood glue for sheeting too, it seems the water in the glue causes warps?? That's what I'm seeing anyway, as soon as I started using the wood glues I started getting warps, I went back to CA and all is well again.
The only problem with that (in my case) is that even a minute amount of CA in the air causes the sniffles, itchy eyes, etc.
I wonder if Ambroid (from the world of ancient people) would cause warps? I can't remember, been too long ago.
Don