Dealing with PVA on plaster/walls

[JamieB3009]

Hello,

I need some advice.

I had my ceiling in a bedroom plastered and new coving fitted and the plasterer has obviously used pva before plastering/fitting coving and I am left with about a 2 inch band around the top of the walls where there is pva on the walls. Before I go to emulsion, I have tried coating the walls with zinsser bullseye123 as this is what I had but it still appears to be peeling a little/not taken. What is the best priduct to prime these areas before painting please so I don't have any issues?? Thabks

 

[Wayners]

Bodge a cheap orbital sander on a vacuum and you can sand it off. Use 120 grade..
I've always just applied emulsion over PVA and never had a problem. I know it can be a problem but I've never experienced it.

 

[opps]

As per @Wayners ' post, sanding might be the better option.

V hot soapy water and a green scouring pad will help, as will acetone but will possibly remove some of the paint.

Just thinking aloud... is it possible that the plasterer used silicone to seal the underside of the coving. If you paint over silicone with water based paint, you will experience fisheyes- the paint pulls away from the surface and you get tiny craters where the paint has pulled away.

Can you provide photos? A little bit of dilute PVA should not be an issue unless the area is subject to high levels of humidity.

If you push your fingernail into the gap between underside of the coving and the wall, is it springy? If the Zinnser strays on to the underside of the coving, does it flake when you drag your fingernail over it (when it is dry)?