I am almost finished building my first balsa kit — sunbird glider. I really like the look of the wing structure and decided to cover it with natural solartex. I would also like to leave the fuselage as it is, but I need to put some kind of protective layer on it, because I imagine untreated balsa will get dented and dirty very easily. I am finding conflicting information on the internet, partly because most people like to cover their airplanes with some color film, so there is no information on natural wood finishes. What would happen if I used beeswax and linseed oil? Would it swell up and get ruined? I'd like the wood grain to be visible, and I don't mind it get darker, I just want to protect it, possibly harden it. Any ideas would be appreciated.