Wallpaper glue is a specialized adhesive that is formulated to stick wallpaper to walls. There are many different types of wallpaper glue, but the most common type is a latex-based adhesive. When repairing wallpaper, it is important to use a matching adhesive. For example, if the original wallpaper was glued with a latex-based adhesive, then you should use a latex-based adhesive when repairing it. Using a different type of adhesive could cause the new wallpaper to peel off the wall.

There are a few different glues that can be used to repair wallpaper. Some people recommend using a non-toxic glue like flour paste, while others recommend using a vinyl adhesive. However, the best way to fix wallpaper is usually to remove it and then re-paper the wall.