On Monday, June 10, 2019 at 5:31:54 PM UTC-6, TravisBrown73 wrote:
There are no adhesives that I know of that would be road-reliable (read, "Not going to kill someone by having a panel blow off at freeway speed")for any amount of time. You would be opening yourself up to a lot of liability there. I wouldn't even try it.

Don't think a trailer mounted solar panel is going to "kill" anyone if it blows off, even at freeway speeds. Think of something like a 18" by 18" piece of corrugated cardboard. It's not like a piece of foam breaking off the Shuttle external tank and hitting at 545 mph (877 kmh).