From a Chemistry point of view, the polymer coating isn't fully cooked for quite some time as Pat notes. That matters little for electrics. But if you use high nitro glow fuel or to a lesser extent, gasoline, it's not a good idea to spill fuel on your finish since it has not cured enough to produce a fuel proof surface. That comes with aging .... A couple weeks at least is often adequate. If you use liquid fuels and spill them on the finish, wipe the spill as soon as possible.

I learned this the hard way. I had the clear coat bubble up when a un-noticed small leak on my fill line on the side of the fuse dripped fuel on the fuse side. Over a couple flights, enough sloshed out of the tube to bubble up and discolor the clear (PPG 2 part urethane, cured for maybe 5 days). It ruined a beautiful paint job on my Alliance.