Originally Posted by CPMcGraw

Have you got a MonoKote iron?

Pop that blister with a T-Pin, several places, then heat up the iron. Press it down flat onto the fin for a few seconds, then check it.

If the white glue has completely dried, then heating it up will liquefy the glue briefly, allowing a complete bond. When you take the iron up and it solidifies again, you'll break the fin trying to get the paper off.

Which leads to another trick -- apply the glue in a thin layer to both the paper and the fin, then let them dry first. Use the iron trick to make the final bond.

I used this trick to apply 1/16" balsa wing skins onto foam cores...