Painting newly plastered walls

[b21playa]

Hi allrecently had walls re-skimmed and it's starting to dry so want to paint it soon. I've got some leyland contract Matt paint and wanted to know if this needs to be watered down for the first coat?

Thanks

 

[London Mike 49]

Water it down by 10% or 20% , I find it useful to use a cheap kitchen balloon whisk to mix it up.

Mike

 

[b21playa]

Water it down by 10% or 20% , I find it useful to use a cheap kitchen balloon whisk to mix it up.

Mike

Thanks Mike

I have a mixing paddle for a drill so that's not a problem

Cheers

 

[Nige F]

Water it down by 10% or 20% , I find it useful to use a cheap kitchen balloon whisk to mix it up.

Mike

Good idea Mike - plasterer's labourers used to use a similar heavy duty tool for sirapite.

 

[b21playa]

Did watch a video with someone using a whisk and seems to be quick and easier, as well as cleaner

 

[Doggit]

Sorry Mike, but the mist coat should be nearer to 50:50 for a contract paint. 20% would be fine for a value paint that's pretty watery to start with, but unless its as thin as hell, it won't soak the dust into the plaster, and it'll just settle on top of the dust, and then peal off over time.

 

[b21playa]

Sorry Mike, but the mist coat should be nearer to 50:50 for a contract paint. 20% would be fine for a value paint that's pretty watery to start with, but unless its as thin as hell, it won't soak the dust into the plaster, and it'll just settle on top of the dust, and then peal off over time.

I'll see how thick the paint is when I open the tub, never used this before ad was on offer at screwfix.

Got a whisk to mix and seems less messy, and hoping to spray it with an airless sprayer

 

[chappers]

Sorry Mike, but the mist coat should be nearer to 50:50 for a contract paint. 20% would be fine for a value paint that's pretty watery to start with, but unless its as thin as hell, it won't soak the dust into the plaster, and it'll just settle on top of the dust, and then peal off over time.

How absorbant your wall is and therefore how much you need to water your mist coat depends a lot on how over zealous your plasterer was when troweling the wall. sometimes you will hear a plasterer boasting about how the finished wall was like glass. Well it might look good but it's no use for decorating.
If I have plastered a wall myself I wouldn't add more than 10-15% water and never had a problem. hole in the top of the paint lid and an electric paddle in the drill for me, but quite like the balloon whisk idea

 

[London Mike 49]

We had to paint the whole of our house after the building works had finished and we used crown white emulsion as the mist coat. It wasn't a trade paint so I don't know how it compares to a thicker paint but the result is good with no peeling or flaking.
I did give all the walls a rub down with 80 grit sandpaper ( even the newly plastered walls and ceilings) and that helped with adhesion.

Mike