Don doing the same here but using 5/8 inch (sold as R12) 24 by 96 inch
sheets at Home Depot. Extruded Polyurethane Foam insulation. Added 5 ribs to
outer panel to facilitate easier installation of panels. Glassed both sides
and hard as a rock. As soon as the fuel assembly arrives and gets installed
closing up the wing will be a breeze and the best part, Very little sanding.
Got to love it. Epoxy resin is a no brainer but since they are wet wings
had to go with vinylester. Works well as long as you got the mix right,
otherwise the foam melts.
Doug Rupert
Simcoe Ontario
