It turns out that to be effective, wallpaper removal (for re-paint) MUST be a first-class job with no room for sloppiness in technique, human error, or laziness by the tradesman or tradeswoman. For, you see, wallpaper ‘paste’ MUST BE COMPLETELY REMOVED or the job will ‘fail’. This is because ‘paint’ will not adhere to wallpaper paste without being adversely affected. Nor will drywall mud (for spray-on textures such as ‘orange peel’ or ‘knock-down’) be unaffected by paste left upon the walls. The paint will crackle (alligator), curl, or ‘pop-off’ and the drywall mud (for spray-on textures) will often ‘slide’ on the paste left upon the walls. It is therefore ‘VITAL’ that the paste under your wallpaper be removed ‘totally off the wall’ –– thus the name!