How to Apply Peel-Stick Wallpaper Peel To begin with, peel off a few inches of the backing material. Stick Apply Peel-Stick Wallpaper to the wall, beginning in the corner.?Do not peel all the backing all at once, peel off a few inches at a time, slowly stick it to the wall, and then continue to peel off a little more) ?Smooth Slowly remove the rest of the backing, smoothing out any air bubbles as you move down.