Painting over fresh plaster

[romeogolf]

I had some artex skimmed a few weeks ago and the first few rooms I painted over using diluted emulsion/mist coat and had no issues.

I've got another two to do, but before I go and buy some more cheap paint to water down, I was wondering if anyone could advise if the remains of this primer would do the same job? The benefits are that it's thicker/less messy, and I already have half a tub of it...! Thanks!





https://www.diy.com/departments/dulux-3-in-1-white...

[LennyM1984]

I'm not an expert (but am in the same position). I believe the purpose of a watered down mist coat is to effectively suck the paint into the porous plaster in order to seal it and prepare it for a proper coat. I would guess that the primer you have pictured would just kind of sit on top of the plaster.

[mart 63]

That stuff is for DIYers, its just a ripoff. Just go to a trade store and buy contract matt, half the price.

[Simpo Two]

romeogolf said:

I had some artex skimmed a few weeks ago and the first few rooms I painted over using diluted emulsion/mist coat and had no issues.

Now that you've sealed the plaster I'd just go for a normal coat or two of the final emulsion (NB I'm not a decorator).

[ro250]

mart 63 said:

That stuff is for DIYers, its just a ripoff. Just go to a trade store and buy contract matt, half the price.

I did that and had absolute hell with chalky residues and textures showing through the 'topcoat'. Would never use contract matt again.

[illmonkey]

I used Dulux trade brilliant white for my skimmed ceilings. Initially do a mist coat, then continue painting normal coats with it.

Jewson's do a deal on 7.5L, works out cheaper then Dulux decorators centre.

[kambites]

I've always just used a coat of 50/50 diluted emulsion. I'd be dubious of anything thinker, the whole point is to saturate the plaster with moisture.

I just buy the cheapest white matt emulsion I can find and it's always been fine.

Edited by kambites on Wednesday 26th February 18:33

[Mr Pointy]

romeogolf said:

I had some artex skimmed a few weeks ago and the first few rooms I painted over using diluted emulsion/mist coat and had no issues.

I've got another two to do, but before I go and buy some more cheap paint to water down, I was wondering if anyone could advise if the remains of this primer would do the same job? The benefits are that it's thicker/less messy, and I already have half a tub of it...! Thanks!

For a mist coat thicker is the opposite of what you want as you need it really thin so it penetrates the plaster. If you want to use it up it's fine, but water it down as before.

[Hoink]

When painting our extension, I used bare plaster paint. It went on well, gave a good coverage and still looks good after 2 years. The make I used was No Nonsense but I'm sure there will be other brands which do similar.

[Murph7355]

Keep mist coating.

[Baldchap]

ro250 said:

mart 63 said:

That stuff is for DIYers, its just a ripoff. Just go to a trade store and buy contract matt, half the price.

I did that and had absolute hell with chalky residues and textures showing through the 'topcoat'. Would never use contract matt again.

Contract matt is a really good way of telling who shouldn't be decorating a house.

[ThingsBehindTheSun]

Murph7355 said:

Keep mist coating.

This, years ago I had a kitchen plastered and couldn't be bothered due to the mess so just painted straight onto the new plaster. Big mistake, unknown to me the plaster sucked all the moisture out of the paint and left the paint like a skin on the surface.

As I was getting down the step ladder, I stumbled, put my hand against the wall and the paint stuck to me and came off in a big sheet. I ended up having to pull and scrape the whole lot off and start again.

Always mist coat now.

[LennyM1984]

Baldchap said:

Contract matt is a really good way of telling who shouldn't be decorating a house.

I always use contract matt for mist coating and/or laying down a base coat prior to filling/sanding. I don't see the point in spending a fortune on normal paint to then sand most of it off/or water it down. What's the issue with contract paint?

[mart 63]

Baldchap said:

Contract matt is a really good way of telling who shouldn't be decorating a house.

Why is that, it's on fresh plaster.

[Techno9000]

ThingsBehindTheSun said:

Murph7355 said:

Keep mist coating.

This, years ago I had a kitchen plastered and couldn't be bothered due to the mess so just painted straight onto the new plaster. Big mistake, unknown to me the plaster sucked all the moisture out of the paint and left the paint like a skin on the surface.

As I was getting down the step ladder, I stumbled, put my hand against the wall and the paint stuck to me and came off in a big sheet. I ended up having to pull and scrape the whole lot off and start again.

Always mist coat now.

Made the mistake of not mist coating some new plastered walls 25 years ago... removed a vinyl sticker recently and, where it was over a wall so painted, it took the paint off with it back to the bare plaster. Lesson taken....always mist coat new plaster.

[Arrivalist]

illmonkey said:

I used Dulux trade brilliant white for my skimmed ceilings. Initially do a mist coat, then continue painting normal coats with it.

This is exactly what I do.

[Glassman]

As mentioned by several: mist coat.

[ooo000ooo]

Hoink said:

When painting our extension, I used bare plaster paint. It went on well, gave a good coverage and still looks good after 2 years. The make I used was No Nonsense but I'm sure there will be other brands which do similar.

I've used the no-nonsense stuff based on recommendation on here, it's good stuff and cheap. Also good for painting over heavily coloured walls when changing colour.
I think screwfix have rebranded it and a lot of their no-nonsense stuff recently.

[wolfracesonic]

mart 63 said:

Baldchap said:

Contract matt is a really good way of telling who shouldn't be decorating a house.

Why is that, it's on fresh plaster.

I came across this earlier in the week, whilst looking up the differences between vinyl and contract matt, mist coats. TLDR: contract matt is cheap, chalky crap.

[dhutch]

kambites said:

I've always just used a coat of 50/50 diluted emulsion. I'd be dubious of anything thinker, the whole point is to saturate the plaster with moisture.

This. The sloppy watery mess is part of the fun!