plaster-how long before it dries out?

Deerd_2

Had my walls and ceiling in kitchen plastered 2 weeks ago.Still some damp patches.How do you speed things on as I have to paint over it at the weekend?Any suggestions welcome.

trigger_mike

Should be dry by now, normaly take a few days to dry.

trigger_mike

o.k, i might be wrong, read this:
http://www.diydoctor.org.uk/projects/paintnewplaster.htm

andrewmoorcroft

Open windows and get lots of air movement and heat. There are some trade paints that are suitable for new plaster and breathe well. Ask at a builders merchant or amy be wickes.

John_M_Business

Also, check the colour... as it dries, it gets lighter in colour (easier to see with the reddish plaster - but also visible with lighter ones)... once it is an even lightest colour, it is, essentially, dry.

Andybez38

In new build houses They are often painted only a few days after they have been plastered. I would think it will be ok to paint the walls now.

baggers_2

just a quick tip, when painting newly plastered walls get some cheap emulsion and mix with water 1/2 paint to 1/2 water this will prevent the paint from chipping and cracking, dont spare the horses just wallop it on. i hope this helps

shelly

baggers wrote:

just a quick tip, when painting newly plastered walls get some cheap emulsion and mix with water 1/2 paint to 1/2 water this will prevent the paint from chipping and cracking, dont spare the horses just wallop it on. i hope
this helps

I don't know about doing this to stop paint chipping/cracking but Hubby does this to "seal" the wall. If you paint a fresh plastered wall the plaster will suck up the paint very quickly making you use more. Painting first with watered down cheap emulsion stops that happening.


HTH

Nile

Hello baggers


Welcome to the MSE site.:wave:

boogiemaster

The plaster needs to be sealed so the paint doesn’t keep soaking into the plaster all the time.
A painter on here said to put some pva in some water and brush the wall with the water and pva solution, the pva dries to form a skin or barrier so that any new paint wont be allowed to soak into the plaster.
Some people water down emulsion and add pva and that would also work, the plaster should be left to dry out naturally, but the builders turn the heat up and make the plaster dry out to fast and that causes cracks.

catkins

Most new houses use a thin skim of plaster. It is possible that your plaster is thicker in places hence taking longer to dry. You should really wait for it to dry on its own. You could use a dehumidifier to speed it up.