A layer of Tite bond 3 works better. I size the back of every skinned bow I build. Wipe a thin layer on and let it cure over night. Come back the next day and put a layer on the skin and a layer on the bow and apply the skins.
I heat treated the bow, (Marc St Louis way) then I sealed it with Shellac, I tillered the bow, I sanded the back lightly,now I am ready for the skins.
The moisture is not really going to come from the TB3 ? but from the wet skins ? Right?
So sizeing with TB3 is the way to go?
Thanks Pearl