Painting over plastered wall

[quiet_riot]

Had a DPC in my house a while back, which meant the bottom half of the room is bare plaster. Finally got round to painting it all, but where the new plaster meets the old wall, the paint is causing almost like a bubbling effect.

Any advice on what I should do?

 

[powersleftfoot]

I would try putting lining paper up. That should do it.

 

[silvaboots]

It sounds like the wall is still damp,Is it cold to touch,When was the DPC done

 

[blumoonrisen]

prime it with pva first.

 

[denislawsbackheel]

don't
<a class="postlink" href="http://www.ultimatehandyman.co.uk/when_to_paint_new_plaster.htm" onclick="window.open(this.href);return false;">http://www.ultimatehandyman.co.uk/when_ ... laster.htm</a>

 

[quiet_riot]

DPC was done about 8 weeks ago, surely it should be dry enough now?!

 

[bluemoon32]

prime it with pva first.

Yep, the plaster will draw the paint in otherwise and look shit, don't listen to people who say not to use it.

 

[bezer57]

pva it first its a must !!!

 

[u2fme2]

prime it with pva first.

well said just about to say the same.
Its a must, let first coat dry and then do it again, in most cases one
coat is enough.
Ex painter and decorator,

 

[quiet_riot]

Cheers lads, will give that a try later.