A collegue of mine has removed the wallpaper from a room in his house with a view to painting it. Under the wallpaper is bare plaster. Is there any particular preparation that would be recommended prior to applying emulsion (Any particular primer/undercoat)? The plaster is probably original - 1930ish. As an aside, what is the actual difference between primer and undercoat? Is one oil based and the other water based? Do they both have the same use or are they intended for different applications?
Any help or advice would be grately received.
Many thanks,
Ben
Any help or advice would be grately received.
Many thanks,
Ben