Painting newly plastered wall/ceiling

[Ellie2758]

We've just had the ceiling and wall plastered and have been told that we need to seal it with watered down PVA before painting it. Any idea how long we have to wait before we can do this?

thanks

[handyman.]

you do not seal with pva.

get some non vinyl matt emulsion, and water it down 30% and apply. This is called a mist coat. Then paint as normal.

I would use dulux trade supermatt (from bnq), and it can be applied even if the plaster is still wet.

There is loads on this subject on here and screwfix, just do a search. Question asked at least twice a week

[handyman.]

its a myth that you seal walls with pva, made up by gipsys.

Try and find any paint maufacture who says to pva first, none do. But some idiots have made this up in their minds and some some reason its stuck.

[chrisandrob]

Have just finished painting our newly plastered staircase,2 coats Dulux matt white,first coat watered down 30%,then 2 coats of a coloured matt ,looks great !!!!

[Ellie2758]

lol, do gypsies manufacture the pva then???

thanks guys.

[Peter-Pan]

I`m with handyman on this and I`ve been a Painter&Decorator for 40,odd years.

[misgrace]

I'm with handyman too, and I have been a decorator for a good few years (not as many as peter pan though)

[handyman.]

Originally Posted by Ellie2758

lol, do gypsies manufacture the pva then???

thanks guys.

I believe they do........and the gipsy tilers use it all the time as well

[arnie&caseysma!]

I painted over my new plaster walls directly with the colour I was finishing with, the whole room needed two coats and it hasnt caused any problems at all!

[EMPTY PURSE]

I used emulsion in B & Q especially for plastered walls ... hall, landing and ceiling only needed 1 coat .. leaves a chalky finish ... just havent got round to putting colour on it yet, but worked a treat

[handyman.]

the first coat should never cover in one coat. The point of watering down the first coat is that the paint soaks into the plaster, therefore creating a key with the surface.

What can happen is the paint starts peeling off the new plaster........seen it happen too many times, but on the other hand, gives me loads of work sorting it out

[JennyW]

we watered down a cheap emulsion for the first coat then used our regular paint afterwards. No problems.

[Baggiebird1nil]

I used covermatt as advised when I had my bathroom replastered last year but underneath the window and where the ceiling joins the walls it's started to flake!

[handyman.]

did you water down the first coat? If you did, then the problem can be the plaster was finished off too shinny. In that case, you use sandpaper to key the surface first.

If its not that, then it could be caused by steam in the bathroom, coupled with using matt.

and if its not that, then it could be the surface was contaminated by pva when plastering

and if its not that, just move house, its easier

[wanabeegeek]

Unfortunatly i have already put a coat on without watering down the paint, i then have put 3 coats on one wall and i have come to drill the walls to hang pictures etc... and the paint flakes off around it, what can i do to rectify this problem??

And secondly all the rest of the walls and celing only have one coat on, can i put a 70/30 coat on that to seal it or is it too late?

Btw im using Dulux Trade Diamond Quick Drying Eggshell Paint Brilliant White if that makes a difference?

Please please please help