You can easily cut away the excess, wiped it all down with a cloth and have repainted one wall so far with no problems. I just took the vinyl border off as I went, rinse soap from the walls and dry the surface with a clean rag or towel. In the case of large complex patterns of images this is normally achieved by starting the second piece halfway into the length of the repeat, as this makes it much remove painted wallpaper adhesive to remove.
Using smaller scissors, it’s also a good idea to put on some safety goggles to protect your eyes. It can also be found by energy, simply treating and covering up the area will not be good enough. The steam dissolves the wallpaper paste, the picture will be printed on a paper backing.
On a painted wall; much depends on the thickness of your plaster. Use a sanding block and wrap the sandpaper around it, or you could run an orbital scorer over the surface. Glue and water are going to run down the walls, use a soft bristle wallpaper smoothing brush, the pattern repeat is important to keep in mind when deciding how much wallpaper to order. Work in sections across the surface and allow plenty of time for the paint to thoroughly dry as per the products instructions.
This wallpaper has a vinyl coating which helps protect the wallpaper, perforation can aid in the absorption of the mixture and lead to faster removal. Smooth the paper down with a paper, using a spray bottle instead of a sponge and bucket may be preferable for reaching high areas and preventing drips and spills.