Yes, you do. And usually right away, too, not after such a while. Try it and see what happens, just go slow to start.
If I were you, I'd grab another part, like a wing top half from another unbuilt kit, clean it, spray the inside with your Alum Plate and rub it gently after 15 minutes or so.
Then go to work on your Stratojet. Might start on a tailplane or somewhere less visible. Also, superglue turns black when it touches that paint, so be careful.
And if/when you do mask, like for the no glare panel, use super lotack old tape.