Cracks and Painting plaster skim

[wrighty208]

Hi,
I've finished plasting a room with Multi-finish and as it's dried out a few hairline cracks have started to appear. (It's an old 1920's house with Brick/Breeze walls).

Will paint cover the cracks or is there something else I should do first? Also should I use PVA prior to painting to stop the walls sucking in all the paint? I've recently heard a story from someone saying new paint sometimes struggles to stick to PVA'ed walls???

Cheers

 

[FredFlintstone]

Hi Wrighty,

Did you VA the walls before skimming them? If not, the chances are your skim dried out to quickly which has caused the cracking. The other possibility is that the backing isn't sound and slight movement has caused the cracking.

Try filling with a fine surface filler, joint compound is perfect for the job, and sanding lightly.

DO NOT PVA before painting - your paint will not stick. Instead, water a standard matt emulsion down (60% paint 40% water) and use that as a first coat.

Regards

Fred

 

[wrighty208]

Thanks for your advise - I will do that.

FYI I did PVA the walls before skimming but I did do patch repairs knocking out any blown areas and filling with bonding so I guess that's what caused the cracks.

Thanks again.