Paint not sticking to plaster?

RaiderHammer

Hi can anyone help with this please.

Decorating the lounge only previously been wallpapered. Striped it all back and the plaster is bare, never been painted. So we painted all the plaster with 50% emulsion / 50% water after sugar soaping. But there is a line of red / brown plaster where a internal wall had been taken down at some point (before we were here) the rest of the room was grey plaster. The paint has adhered to the grey plaster but is peeling off the red / brown plaster which looks a little shiny.

Any ideas on what we can do to get the paint to adhere to this section of the wall?

A case of putting a thin layer of powdered filler over the red / brown plaster?

Any help much appreciated.

Thank you.

SailorSam

On new plaster you need to size the walls.

RaiderHammer

SailorSam wrote: »

On new plaster you need to size the walls.

Sorry what's that please?

Plaster in the area is not new, many years old I would say.

nickj_2

you've given all the walls a thinned coat of emulsion - so that should have sealed the walls
when you say you've sugar soaped the walls , this alone will not get rid of the paste , i normally go over then with a nylon scourer , warm water and a squeegee to loosen and remove the paste .
you could re clean the plaster , give it a light sand down and then prime with one of thse http://www.zinsseruk.com/product-category/adhesion-promoting-primers/