In the above YouTube video link showing how to apply Otterbox, that guy talks about spraying some solution that he is holding directly on the body of Macbook, is that safe ? That looks freakin scary to spray some solution directly on the Mac surface ? How safe is that ?
It's perfectly safe as long as you aren't overzealous and hose down your laptop. You have to use some kind of solution or soap/water mix with all of those skins so you can position it after placing it on the surface and so you don't leave fingerprints on the adhesive size.