ᐅ What type of plaster is this? Repairing a breakthrough in Liapor masonry (built in 2019)

Created on: 25 Dec 2025 22:20
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putzer0819
Hello dear experts,

we bought a house built in 2019 and recently made an opening for the children’s room. So far, so good. Of course, now I need to repair the plaster – but the original craftsman seems to be no longer available.

Therefore, my question is:
can someone estimate what type of plaster this is and possibly how it was applied? It is about 12mm (0.5 inches) thick. The masonry is made of Liapor / expanded clay.

Thank you very much for any tips!

Merry Christmas!

Close-up of a wall with a rough surface and black gravel texture
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putzer0819
9 Jan 2026 20:03
@Nauer we have now tried painting... even after the fourth coat, we are still far from the height level of the old paint. Either they used a completely different paint back then... or could it possibly be a very fine textured plaster?! There’s no way they painted the entire house four, five times, or even more...

And in some spots, I was able to cleanly peel off the old "paint" in one strip... so in those areas, the base plaster is definitely at the same level...