Krafty
I made my own CF sail panels using epoxy/hardener, but I noticed that you said that you didnt want to use this. But, this is the only TRUE materials the pros use for all fibers.
I still have to do a little sanding and reapplying the epoxy, but it does hold up under extreme weather conditions.
I will try to buy an extra set of sail panels, so I can use my current panels for experimentation since it takes a long time for the epoxy and hardener to cure. I hope this helps.