PVA on walls prior to painting...

[calvr1ch]

Before reading NOT to PVA freshly plastered walls prior to painting this is what i have done.... I have used a 5:1 mix of waterproof PVA, should i remove it before painting and how do i remove it.

 

[JohnD]

you could try the method I use to remove traces of wallpaper paste before painting:

brush or spray generously with hot water (a drop of washing-up liquid helps) to wet and soften the material

then a broad metal scraper to scrape off the wet slime, wipe the knife frequently on a rag to remove the build-up

after a while you will be able to see the difference between clean and slimy plaster.

The trouble with trying to scrub it off is that it soaks back into the wall.

 

[calvr1ch]

Would rubbing it down with sandpaper do the job?

 

[Nige F]

Go over it with zinsser water based primer/sealer. Cost about £40 for a 10x10 foot room. I did my bedroom because of powdery plaster It`ll stick to and solve pretty much any problem surface.