Hi, you work is very interesting, I have few considerations:
1. I work at 3M Aerospace and we use RP2220 to seal the edge of our erosion protection “boots” for commercial and military applications. If you need a small bead can seal the front or all the edges.
https://www.3m.com/3M/en_US/company-us/ ... 060&rt=rud2. Another option is to use this solar energy to help to extend the flight of electric Xenos. Check:
http://www.sonexbuilders.net/viewtopic.php?f=4&t=5498Please keep us update on your progress of you need support