ᐅ Painting a Utility Room with Gypsum Plaster – Which Paint Should Be Used?

Created on: 12 Jul 2020 18:36
A
Appel2000
Hello everyone,

Now that our interior plaster (gypsum plaster) has dried and the heating technician is expected soon, I wanted to paint the utility room beforehand. No wallpaper or anything, just paint, so the entire wall with the equipment, etc., looks "clean."

Which type of paint should I use?
When I look online, I find all kinds of advice: with primer, without primer, emulsion paint, silicate dispersion paint... it's more confusing than helpful.

What is the correct procedure?
How have you handled this?

Thank you very much!
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Crossy
13 Jul 2020 10:57
That’s what I thought too. Just prime well and, if necessary, apply two coats of good paint. That was my plan. I actually didn’t want to sand the entire surface anymore.
Mycraft13 Jul 2020 11:19
This is exactly why primer is necessary—to prepare almost any type of surface for painting. You only need to sand the plaster if you want it to be especially smooth.
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Crossy
13 Jul 2020 11:44
I’m also willing to try it without sanding. In theory, I could apply wallpaper or fleece over the primer without sanding the entire surface first. I’m still considering how to proceed in the children’s rooms. For HAR and similar cases, I’ll stick with my original plan to prime and paint the gypsum plaster without sanding beforehand.
A
Appel2000
13 Jul 2020 19:42
Thank you for the many replies…..
Apparently, I’m not the only one with this "problem."

I often read:
No dispersion paint, because it’s not breathable and promotes mold growth. And the utility room tends to be more humid (washing machine, dryer) than dry…..

So, should I prime and then apply paint?
Mycraft13 Jul 2020 19:47
Hmm, you do contradict those thoughts a bit... but yes, primer... let it dry overnight... final coat
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guckuck2
13 Jul 2020 19:57
Deep primer is basically a plastic mixture. You don’t need to worry about the dispersion anymore.

Both dispersion paints and deep primers claim to be "(vapor) diffusion open" or "breathable." As long as they don’t completely seal the wall, these statements are actually correct.

It's just a huge nonsense.