Arthur wrote:
Hi.
I have some newly plastered wall and some 'salts'
have appeared on it. Is it ok to just paint over it or
what do I need to do first?

Thanks.

Arthur.

the salts will continue to appear for a number of weeks. You could use a
dehumidifier until the plaster is completely dry. If you do paint the wall,
you must use a porous paint, which can be obtained from trade outlets and
sometimes even Homebase and the like. Do not use anything oil based (like
anti-condensation or mould paints) because it will only exacerbate the
problem.