salts in plaster

Discussion in 'Other Trades Talk' started by oldhouserestorer, Jan 17, 2006.

  1. oldhouserestorer

    oldhouserestorer New Member

    All of my house is plastered with old lime plaster, some of it directly onto brickwork, but mostly dry lined onto laths. There are lots of places where the plaster has been damaged by water ingress and the result has been hygroscopic salts. I can't seem to find a way to stop the salts, even though there is no more water ingress. I've heard there is a way of neutralising the plaster. I've tried a poultice of chalk, but this hasn't worked. Any ideas?
  2. Try posting on the Builders Forum, they don't always look here
  3. Backdraught

    Backdraught New Member

    Brolac do an alkali sealer which will seal the plaster and stop it taking in more moisture from the atmosphere. If it is very wet then you may want to take further advice or replace these areas.

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