For wallpaper installation, the base layer of the wallpaper is important.
Paper wallpaper is suitable for all interiors, but it is not suitable for damp environments or walls that crack a lot.
In the case of paper wallpapers, the adhesive is applied to the wallpaper, which is then folded over with the reverse side (the side painted with adhesive) so that the adhesive soaks evenly into the entire paper wallpaper. Caution! The soaking time for paper wallpaper is 5min! If the soaking time is longer than recommended, the wallpaper will stretch. If the paper wallpaper is double layered (duplex) or if you are applying it to a non-absorbent substrate, it is better to use a thicker adhesive and apply a thin layer than the other way around.
Non-woven wallpaper is particularly popular for its ease of installation. Just paint the wall with wallpaper adhesive and you can place the wallpaper on it. Removing the wallpaper is just as easy. It's easy to do in whole strips.
Bonding vinyl wallpaper depends on the material that is used on the base layer of the wallpaper. If it's paper, you'll glue this wallpaper as paper, if it's vinyl, you'll glue it as vinyl.
The exceptions are heavy vinyl wallpapers (mostly the more expensive wallpapers from Italian manufacturers), and when installing these we recommend coating both the wallpaper and the wall with adhesive.