Top-Flite Clear Kote works wonders.

I regularly use this on new planes.

Here's what I do....

I lightly "buff" the new covering with a plastic dish scrubber. Those things that look like plastic Brillo pads.
I then clean off anything left with a soft chamois.

I spray several LIGHT coats of Clear Kote on the plane, omitting any clear canopy items by masking them off.

After this I again buff the coating with the plastic scrubber until it attains a softer ever so slightly opaque finish.

It looks great when done. The plane is not quite as shiny as before, but the covering looks more authentic.

I've never had any trim or decal come up or off after doing this properly.