Salts coming out of new plaster

1 Sep 2010
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United Kingdom

I've had a bit of plastering nightmare.

An area of wall was plastered, and to cut a long story short there was a water leak in the wall from some central heating pipes, this meant that the plaster took a very long time to dry out, and whilst it was drying out a lot of salts came through and have sat on the surface of the wall.

The water leak has been fixed, so I'm hoping that I don't have take all of the plaster off and redo it all.

But should I treat the wall before we paint it - I've seen a salt neutraliser mentioned on some forums.

Also how long should I leave it to drybefore painting? The wall was taken back to the brick (it's an internal wall in a victorian terrace) and then replastered (I think using hard wall and then skimmed). It's been 6 weeks since the leak was stopped.

Any help would be much appreciated.
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