robw56 wrote:I've never seen that rapid tac stuff. The decals I got are self adhesive vinyl.
This stuff helps with the paper-backed self-adhesive vinyl such as your airplane numbers. It's especially helpful the larger and more intricate your graphic is. But even on your numbers it should help you avoid any bubbles and wrinkles when applying them, and help you when peeling off the backing papers. Use a tiny bit on a lint-free cloth to prep the area. Position the graphic in place with both paper faces still attached, by taping the top edge only to the fuselage with blue tape. Soak the transparent outer paper with Rapid Tac and give it a minute to soak in. Peel off the solid paper from the adhesive side. (Meanwhile the outer paper remains taped to the fuselage, keeping your graphic positioned.) give the airplane another light spritz of Rapid Tac for good measure. Then use the squeegee they gave you to work the graphic onto the airplane, starting at the top middle, and working downwards and outwards. Lightly at first, then hard. If you botch it you'll likely need a new graphic made, but the good news is it comes right off with a heat gun, and if you're quick you have a couple seconds when you can adjust a mistake. A small simple graphic like that shouldn't be any trouble at all though.