Then size the walls by applying a some ready mixed paste diluted with water to stop the plaster absorbing all the moisture when you come to actually hang the paper.
Hanging wallpaper on plaster walls.
Step 1strip off the outer face of the wallpaper leaving only the backing material and glue.
The best option mostly depends on the weight of the picture in question.
Sizing is a compound of chemicals that acts as a buffer between the wallpaper backing and the plaster surface.
Place these in another room.
Firstly make sure plaster is fully dry 7 10 days depending on drying conditions.
If you encounter wallpaper that s been painted over first try the wallpaper stripping.
Prepping plaster walls for paint wallpaper painted over wallpaper.
Although this may sound like a measurement process it actually refers to treating plaster walls with a product that allows the paper to stick better but not so tightly that you can never remove it.
Place any large pieces of furniture such as sofas in the center.
Remove as much furniture as possible from the room.
Best o luck paul.
In most cases of multiple wallpaper build up though the plaster will be a lost cause.
Adhesive picture hooks are the best way to prevent damage when hanging a picture but pre drilling the hole will usually prevent cracks and chips from forming as well.
For speed even application i use a roller.
How to wallpaper or paint directly on plaster 1.
Plaster walls have a tendency to crack and crumble if you attempt to hammer a nail directly into the wall.