Painting new plaster

[ibisti]

Just had a bathroom plastered and wondered what was the correct way to paint the fresh plaster once it had dried out?

[tomash]

Mmist coat first, this is a mix of cheap emulsion and water 50/50 paint it on which will seal the plaster.

Then carry on as normal.

[nixy p]

I'm sure i heard somewhere about applying PVA solution first?

[the_g_ster]

Don't apply PVA, it won't let the new plaster breathe, cheap crappy emulsion that is watered down as advised and it will work a treat.

[s3fella]

Make sure you use a matt emulsion no silk or vinyl finishes as it will trap in moisture.

You can get specialist new plaster paint from Wickes and others. About £14 for 5 L.

If it is well dry, (like 6 weeks dry), PVAing it and painting will be fine. Otherwise a watered down coat as others have said. If dry, I tend to use PVA from a sprayer as it's dead quick and allows paint to be used in about 30 mins.

[Spudler]

tomash said:

Mmist coat first, this is a mix of cheap emulsion and water 50/50 paint it on which will seal the plaster.

Then carry on as normal.

This,but 20/80 water/paint is fine. NO PVA.

[Rollin]

I've used B and Q value matt before with good results.

[trev540]

As said before DO NOT USE P.V.A. for anything when decorating other than sealing dusty garage floors. There are much better products on the shelf at a proper decorators merchants just ask at the counter. For new plaster a mist coat of 60/40 or so will be best before doing anything such as making good or rubbing down any dodgy plastering. The mist coat will be dry very quickly so you can crack on.

[J.R.B.]

As has been said, do NOT use PVA. It's an old plasterers myth to seal it with PVA. Once plaster is properly dry (couple of weeks if just a skim, otherwise a good 4 to 6 weeks), thin first coat with water and then bang on a couple of coats of something decent over the top. In a bathroom I'd be inclined to use quick drying eggshell rather than an emulsion.

[Dogwatch]

Got an identical problem to the OP - is this the bathroom season??

Thanks everyone for the warning on PVA. Looks as if a cheap matt emulsion with water is the biz.

Got to paint the ceiling again as well, at least it has been done before so one good coat should do it. I hate painting ceilings

[GG89]

On shell renovation jobs it's not unusual for painters to roll on a very weak 6 parts water to 1 part PVA on new plaster to stop the suction. Itis quite messy so I would just give it a mist coat as said above. Don't know what plaster you're using J.R.B but 4 to 6 weeks to dry? If its a skimcoat on to plasterboard for example in a heated house it would be dry within 2 to 3 days.

[hman]

Pva mix goes on the wall first before the plaster as I understand it, then mist coat and finals.

Looks good in my house anyway!

[NiceCupOfTea]

Spudler said:

tomash said:

Mmist coat first, this is a mix of cheap emulsion and water 50/50 paint it on which will seal the plaster.

Then carry on as normal.

This,but 20/80 water/paint is fine. NO PVA.

Plus one. Too much water and it'll splash everywhere.

[SWH]

I did Dulux Supermatt 50/50 with water, big roller... nice and messy, then straight on with the final colour the next morning.

As above B&Q Value Matt white will probably be just as good - it's pretty thin already from what I recall!