RE: covering material strength
Yep, extremely strong stuff. A wing covered with micafilm seems like it could be used as a baseball bat. Use Coverite Balsarite or SIG Sticksit for adhesive. Thin the Balsarite some with acetone so it doesn't glom up and make lumps under the covering. I use 2 or 3 thin coats and sand lightly with 320 or 400 paper then cover.