In this video I use a rattle can polyurethane warm satin spray to seal my decals, and to provide a layer of protection against the sun. It takes a bit longer this way as apposed to using a brush, but the result is well worth the extra work and time to do the masking off some areas. I hope this helps someone make their decision on weather to go this route or not. I checked all of my control surfaces, and servos. Nothing got stuck. I might also add that when I used a brush on one of my other planes I did have hinges get stuck.