Painting over new plaster on cielings and walls

jonneymendoza · 19 May 2023 at 17:19

Hi.

I am looking for some advice on putting on a primer on my walls and cielings and came across thos product https://www.screwfix.com/p/no-nonsense-trade-bare-plaster-paint-brilliant-white-10ltr/51004

Any good?

I will first start painting the bathroom cieling with this and then apply something like this https://wrxtrade.co.uk/product/wrx-trade-water-based-ceiling-paint/ or this https://www.decoratingcentreonline.co.uk/catalogsearch/result/?q=zinsser perma white&tagrid=57053929.

The latter i amy not consider as people said ist a bit runny?

I want something thats mould resistent for the cieling of my bathroom for the main paint that goes on top of the primer

Mason- · 19 May 2023 at 17:21

Best bathroom white paint is Zinsser Perma White. Use it in bathrooms and kitchens.

Edit: just seen you linked it in your OP. I didn’t find it particularly runny or hard to use compared to other paints.

Any cheap white emulsion watered down will do for fresh plaster you don’t have to buy a specific paint.

jonneymendoza · 19 May 2023 at 17:25

Mason- said:
Best bathroom white paint is Zinsser Perma White. Use it in bathrooms and kitchens.

Edit: just seen you linked it in your OP. I didn’t find it particularly runny or hard to use compared to other paints.

Any cheap white emulsion watered down will do for fresh plaster you don’t have to buy a specific paint.

Brilliant thanks and i would apply first the water down emulsion paint like the bare plaster one or similar and then once that is dry, use the zinsser perma white for the bathroom cileing?

casper_uk · 19 May 2023 at 18:26

The trade bare plaster wasn't very good when I tried it. I switched to https://www.screwfix.com/p/dulux-matt-pure-brilliant-white-emulsion-paint-10ltr/1013v and mixed it at roughly 900mls to 300mls of water. It gave a nice decent cover then.

Murphy · 19 May 2023 at 18:54

Why can't you just use a mist coat or am i missing something.

jonneymendoza · 19 May 2023 at 19:33

Murphy said:
Why can't you just use a mist coat or am i missing something.

I could but i am lazy lol plus i need to measure it and be consistent for each time i mix the water with the emulsion

SoliD · 19 May 2023 at 19:35

I've found that the dedicated stuff is much easier to apply and so much less flick than watered down emulsion, its not really more expensive either and you can just whack it in your roller tray and go.

Murphy · 19 May 2023 at 19:46

Yea, i can't argue with that. I guess it would be cleaner/easier than having to mix it yourself.

a1ex2001 · 20 May 2023 at 00:40

jonneymendoza said:
I could but i am lazy lol plus i need to measure it and be consistent for each time i mix the water with the emulsion

You really don’t need to be that accurate with the mix, it is hilarious that people quote down to the ml, I always just do a rough mix in he roller tray by eye takes a couple of minutes tops and all my walls still have paint on as if a few ml’s either way actually matters lol

robj20 · 20 May 2023 at 06:02

Mason- said:
Best bathroom white paint is Zinsser Perma White. Use it in bathrooms and kitchens.

Edit: just seen you linked it in your OP. I didn’t find it particularly runny or hard to use compared to other paints.

Any cheap white emulsion watered down will do for fresh plaster you don’t have to buy a specific paint.

Don't just use any emulsion.
For fresh plaster you really want Contract Matt. It's low polymer content helps it to soak in to the plaster rather than sitting on the surface.

bigmike20vt · 20 May 2023 at 09:15

our entire house is painted on plaster.... we just bought the cheapest white paint we could ( B&Q value ) and watered it down. no need to be accurate as it needed to go on walls and ceiling anyway and you don't need to colour match to your final coat .
the paint stuck perfectly..... (we have massive cracks showing in the walls but that isn't the fault of the painting.)

unwashed potato! · 22 May 2023 at 01:10

robj20 said:
Don't just use any emulsion.
For fresh plaster you really want Contract Matt. It's low polymer content helps it to soak in to the plaster rather than sitting on the surface.

Thanks. Probably explains why our paint comes off so easily now, as the paint feels in places like it's just say on the plaster rather than into it.

jonneymendoza · 22 May 2023 at 08:28

bigmike20vt said:
our entire house is painted on plaster.... we just bought the cheapest white paint we could ( B&Q value ) and watered it down. no need to be accurate as it needed to go on walls and ceiling anyway and you don't need to colour match to your final coat .
the paint stuck perfectly..... (we have massive cracks showing in the walls but that isn't the fault of the painting.)

Why do have cracks on the wall? Subsidence?

Bad plaster?

Did you go for wet or dry plaster?

bigmike20vt · 22 May 2023 at 08:58

jonneymendoza said:
Why do have cracks on the wall? Subsidence?

Bad plaster?

Did you go for wet or dry plaster?

we had the house structurally checked...... it is apparently fine but (not being an expert) i would say very slight subsidence. Some of it is on our new extension, and is likely just due to it settling a bit. i will just get the polyfiller out before we decorate next.

the microcracks we have is just the nature of it i think..... when we removed the old wall paper (wood chip, the worst thing ever invented) along with some RTexed walls (the 2nd worst thing ever invented) the quality of the plastering was awful so we got a plasterer who just skimmed over it. My dad warned me it would crack.... and he was right, but they are only microcracks and am hopeful they will cover up next time we decorate. the important thing however is - other than the bathroom ceiling - the paint has stuck properly to the walls.

jonneymendoza · 22 May 2023 at 10:58

bigmike20vt said:
we had the house structurally checked...... it is apparently fine but (not being an expert) i would say very slight subsidence. Some of it is on our new extension, and is likely just due to it settling a bit. i will just get the polyfiller out before we decorate next.

the microcracks we have is just the nature of it i think..... when we removed the old wall paper (wood chip, the worst thing ever invented) along with some RTexed walls (the 2nd worst thing ever invented) the quality of the plastering was awful so we got a plasterer who just skimmed over it. My dad warned me it would crack.... and he was right, but they are only microcracks and am hopeful they will cover up next time we decorate. the important thing however is - other than the bathroom ceiling - the paint has stuck properly to the walls.

Would it not have been better to tear down the old plaster and start from the brick?

That's what I done in the two main rooms. Skimming it only fixes it temporary.

bigmike20vt · 22 May 2023 at 11:05

jonneymendoza said:
Would it not have been better to tear down the old plaster and start from the brick?

That's what I done in the two main rooms. Skimming it only fixes it temporary.

without doubt would have been better, but we were on a really tight deadline as well as a limited budget. we did a lot of it ourselves and didnt have the time or energy to do that in every room in the house.
either way its done now and has lasted almost 10 years and whilst there are some cracks if you look closely, it still looks fine at a distance. the larger cracks i think polly filler will fix it and we will paint over next time.

not ideal but was the best solution for the time and budget we had..... but all that aside... the point still stands, you really dont need special paint to paint on raw plaster, thinned down cheap paint is fine.