Richard

Please excuse my laziness, but if you use Elmer's ProBond, you don't need to glue the seems. True and tape the pieces together for the skin, spread the ProBond on as you would epoxy. Spray a little water on the core. Put the whole thing together and weight it. The ProBond foams when kicked with a fine spray of water. It foams into any voids between beads in the foam. It also foams into the seams in the sheeting. Block sand them after curing.

ProBond does not delaminate. Several years ago, I lost a Curare in Bowling Green, KY. Dumb thumbs directed in earthward wide open. Lots of things broke, but none of the sheeting let go. Even where the wing broke, the sheeting was still firmly attached.