Quote Originally Posted by DarkMark View Post
I think a layer in the ply is separating and if I go back down to wood I would probably end up sanding through the layer and cause other problems. Not 100% sure. PITA alright.
Traditional cures for delam ply include injecting epoxy resin with a hypodermic. Much more difficult than it sounds due to viscosity. Feel for you, I think pragmatically all I would do for now is monitor the situation.