Just stripped some paper off a wall to reveal some nice grey plaster.
I know I have to wash it down otherwise the paste will affect the paint.
Any tips on the best thing? Just water? Sugar soap?
Secondly, I guess I'm going to have to used something to seal it with.
I've seen 'paint for new plaster' in the sheds, but is this just a money maker? Emulsion thinned 10% or PVA?