Second wing root leading edge skin gets epoxy on both surfaces. After waiting a couple of minutes for the epoxy to saturate the surface of each part, I staple the skin onto the lower spar. The following scenes contain violence which may not be suitable for weak stomachs or young children.
Parental guidance is suggested.
The plywood and the cold water. The plywood meets the cold water for the first time. They seem to be getting along just fine. After exploring this further I had been convinced this would be overkill. So one day in desperation to move forward I risked everything and popped a pitcher of water in the microwave until it boiled.