Patches showing through paint

Postby chard » Sun Nov 11, 2007 11:24 pm

We're building a new house, the plastering has been finished and we have painted with one watered down coat of Gliddon trade matt and then 2 coats of crown matt paint (a few shades darker than magnolia) - the problem is that the walls are patchy round the door and window reveals and dsepite giving these areas extra coats it is not covering! :(

Our plasterer insists he has never sean this before and that it is not a problem with the plastering - any ideas why this is happening and how we can fix it???
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Simply Build It

Postby kimhodd » Tue Nov 20, 2007 11:43 pm

Do you mean the plaster is showing dark or staining or can you see the edges of the patching
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Postby tucny » Sat Nov 24, 2007 5:42 pm

Has the plaster been given enough time to dry?? Have the door and window frames been sealed to the masonry property??

If yes to the above it could be a salt problem. Try a stain blocker, otherwise you may have to replaster taking precuations to prevent salts in the masonry migrating to the plaster.
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