Plastering that has gone bad?

trl002

Hi i have just had my two bedrooms replastered all walls and ceiling. In bed room 1 two of the 4 walls are one colour and i am 100% sure they are dry. BUT the ceiling and two walls are multi coloured (see image) this is also the case in my other room. Is there something wrong or is it not dry yet?

The plastering ine room 1 was done over a week ago all windows have been left open and a fan has been put in the room, room 2 was done 4 days ago.


Could someone tell me what is going on with the plaster? is it damaged????

http://img268.imageshack.us/img268/2556/20090801141600.jpg

itisme

Hello trl002

I'm no expert, but just to let you know, I had my walls and ceiling plastered 5 weeks ago.

I have just painted today (with a little water in the paint to make it easier)
as I wanted to make sure that they were completely dry before painting.

I wouldn't start to paint yet, leave it a bit longer and most of the patches will slowly go away.
Hope this helps

Meepster

You ideally want to leave new plaster to dry for 3 to 4 weeks. Depending on how thick the plaster is, it could feel perfectly dry on the surface, but still actually be wet underneath. The plaster is "blotching" like that as it isn't dry yet. Shouldn't be anything to worry about, just give it time...

trl002

you think i can paint (50% paint & 50% water) on it yet? or want a few more days.

A friend told me to put a heater on that will speed up the drying time, is this a good idea?

aliasojo

A dehumidifier is apparently better than a heater, I'm told.

trl002

aliasojo wrote: »

A dehumidifier is apparently better than a heater, I'm told.

Dont own one unfortunately i sold it a few years ago

HugoSP

There's nothing wrong with that - it's still drying out.

I would leave well alone until it has dried out properly - with the weather we've been having lately the RH will have shop up and hindered drying.

Doozergirl

Do not put a heater on it - it will cause it to dry out too quickly making it likely to crack. It's far better to let it dry naturally.

If you paint it with 50/50 you are intorducing more water; I think there is enough in there already! Be patient.

munkypuzzel

The plastering is fine, just not dry yet.. dont worry be patient

aahbarnes

That plaster is perfectly dry and ready to paint. The lighter patches are just the 'fat' which has come to the surface during trowelling.

Never use a heater or dehumidifier, the plaster will dry too quickly and crack.

trl002

aahbarnes wrote: »

That plaster is perfectly dry and ready to paint. The lighter patches are just the 'fat' which has come to the surface during trowelling.

Never use a heater or dehumidifier, the plaster will dry too quickly and crack.

Hi Are you sure its dry and just fat layers???? i left the windows open all weekend and it doesnt seem to change colour, looks the same!