ᐅ To paint lime plaster or not?

Created on: 17 Mar 2026 11:37
A
a_v_s
Some things only come to mind once the quotes start arriving.

New build, waterproof concrete shell (here it doesn’t really matter), precast concrete slabs, drywall in the attic. All brick walls and some concrete parts (staircase landing, etc.) are finished with lime plaster. Not a lime-cement plaster, but pure lime plaster.

The painter’s quote is huge. 1200m2 (12,917 sq ft) of surface to paint... honestly, I don’t want to do it myself either ;-)

Now my question is whether lime plaster actually needs to be painted. Of course, it’s not 100% bright white, but that’s not necessarily required.

The painter plans to use Keim Innopro (2 coats).

Questions:

1. Is it necessary?
2. Or is it like casting pearls before swine?

The entire house is built in a modern take on rustic style (wooden windows, travertine, etc.).

The precast concrete ceilings obviously need to be painted (here, spackling and painter’s fleece are planned). The only question is which color they should be to harmonize with the somewhat grayish walls.

Best regards

Andreas
familie_s18 Mar 2026 09:51
user-d29 schrieb:
Is that lime plaster with cotton fibers? Pure lime plaster usually has a fine, felted texture. If needed, it can be smoothed to a Q3/Q4 finish with lime putty for a very smooth surface. A matter of personal preference.

The one in the photo? That’s done by a professional. We don’t have pure lime plaster, but rather what is marketed as “lime plaster” that still contains cement. True, lime putty smoothing would have been possible, but it was extremely expensive for us. And I wouldn’t have wanted that perfectly smooth “baby bottom” finish anyway, but rather a character like an old building, which the crew couldn’t achieve.
user-d29 schrieb:
Honestly? It looks like a shell construction—not fully finished. Personally, I find that absolutely horrible if nothing more is done. But of course, taste is subjective.

I completely agree with you. I also find it terrible. That’s why on the ground floor, we didn’t have edge profiles. Unfortunately, the plasterer didn’t want to do that on the other floors without an extra charge. I hope the lime paint will disguise it.
user-d29 schrieb:
This has nothing to do with age, but with the effect of colors.

A matter of taste. And you can also bring color in through the interior design.
U
user-d29
18 Mar 2026 10:13
familie_s schrieb:
Unfortunately, the plasterer did not want to do that on the other floors without an extra charge. I hope the lime paint will cover it up.

But this becomes a problem for the original poster, since the question is: paint or not. So you are still planning to paint with lime paint (at least in a white shade)?
familie_s18 Mar 2026 10:31
user-d29 schrieb:
But this becomes a problem for the OP, as the question is: to paint or not. So you are still planning to paint with lime paint (at least in a shade of white)?

Yes, exactly. In my first post, I advised the OP to paint for several reasons. Perhaps, however, his plasterers work more carefully.