Painting over emulsion streaked by damp (but now dry)

[phil1963]

In January I had a leak from somewhere which I hope has now been sorted out. The INTERIOR (and exterior) walls are dry, but I now have to paint the kitchen as there are two, one foot vertical streaks down the side of the window where the water that leaked into the kitchen from above the window (did it run across the lintel, then drop down the sides of the window?) stained the emulsion cover INTERIOR wall.
I have been told that I need to "seal" the damp by painting over it with terps/white spirit or an oil based paint AND THEN re-paint it with emulsion as before - IS THIS RIGHT/THE BEST WAY or will the two streaks still show through after re-painting?
Phil.

 

[Third_Eye]

Have you already painted the walls ?

 

[phil1963]

No, they were painted 7 years ago and have been untouched since.

 

[Zampa]

Never heard of painting over with turps or white spirit.. ...that wont do anything..

Oil based paint is normally fine for sealing old stains like that...I used undercoat..dont bother using gloss its another take a break special!

The emulsion you put over it afterwards wont stick.

 

[Third_Eye]

Or you can give all the bare plaster one coat of thinned down vinyl matt and leave to dry and then overcoat the water stain area with Thompsons Damp Seal and leave to dry. Then apply two coats of your vinyl matt. Job done.

 

[spice]

If its only a couple of stains, and for cheapness, paint the stains with oilbase undercoat,(your bound to have some lying around in the shed) when dry,then emulsion.

 

[phil1963]

Cheers.