The scoring tool will speed up the time needed to remove very difficult wallpapers, such as foils, flocks, very old or painted over wallpapers. Some wallpapers remove easily dry, while others must be wet. To determine this, start at the bottom of the wall and lift a corner of the wallpaper with a snap-off razor blade or the edge of a wallpaper removal scraper. Many times the front of the wallpaper removes easily dry.