Paint problem on newly plastered wall

[LeadFarmer]

Ive got a problem with the paint on our newly re-plastered living room wall.

We've recently had the living room re-plastered, the walls were boarded over, skimmed and allowed to dry. I then put a mist coat of paint over the new plaster (watered down paint) followed by two coats of paint.

As each coat dried I noticed it was drying differently where the metal beading is on the chimney breast. Its as if there isn't enough plaster over the beading. I put a 3rd coat over the chimney breast but it looks awful.

(Paint is BnQ Colours Alep emulsion)..

 

[London Mike 49]

If I have ever had a problem like that, I've given the areas a coat of acrylic or oil based undercoat and another emulsion and it usually does the job .

Mike

 

[LeadFarmer]

Im wondering if its a paint problem, or a plaster problem?

Its a retail paint, and maybe not up to the quality of a decent trade paint? Ive heard that Ostendorf now supply BnQ with their retail paint, and not Johnstons as it used to be. Maybe it just doesn't have the qualities to cover properly?

 

[Nige F]

As per Londonmike - or a coat of Zinsser.

 

[LeadFarmer]

Ive applied 2 coats of Zinnser BIN over the affected area, so hopefully this will hide the problem once I've given a few more coats of the BnQ paint.

 

[LeadFarmer]

Well the Zinnser BIN didn't really work. Three more coats of paint and the marks could still be seen. I then had some Johnstones paint mixed to the same colour, two coats covered the marks perfectly. So I think it was mostly down to using crap B&Q paint.