ᐅ Wall construction on lime-cement plaster (healthy indoor environment / mineral-based)

Tolentino schrieb:

I would rather recommend the questioner to apply a durable, washable wallpaper there.

Is "elephant skin" wallpaper still available?
That was used in the past.

Yes, it exists, but it has a strange shine.

cryptoki schrieb:

I still don’t understand the connection to the original post,

nordanney schrieb:

Standard emulsion paint also works with a suitable primer.

Mold formation is fantasy. It has nothing to do with silicate paint. But I still don’t understand why latex paint is supposed to be applied. Simply repainting with dispersion silicate paint is fine.

Does dispersion silicate paint work on a silicate coating without primer, and is there one with abrasion resistance class 1? The painter could have told me that. That would be great. Has anyone done this and gained experience?

Christadoreen schrieb:

Does dispersion silicate paint work on silicate coatings?

You can generally assume that dispersion silicate paint has been applied before. Pure silicate paints are hardly used anymore because of the application process. I would just paint over it.
I can’t comment on the abrasion resistance classes.

Christadoreen schrieb:

Has anyone done this and has experience?

No problem on exterior walls.

As far as I know, it is pure silicate paint. The walls were previously filled and then painted with silicate paint.
The painter gave me a jar of the paint back then, and it hardened after a short time and could no longer be used.

cryptoki schrieb:

I don’t yet understand the connection to the original post, but okay. Good silicate paint with abrasion resistance class 1, apply two coats, and then enjoy it for years to come. Not sure why anyone would want to seal the wall with latex paint or how that relates to healthy indoor living, etc.

This is exactly how it should be. In my opinion – pardon my language – latex paint is the worst and not nearly as easy to maintain as people might think. I know someone who had washable latex paint applied up to about 1.20m (4 feet) in a heavily used stairwell, and it was a complete disaster. It looks unattractive and is harder to clean than the dispersion silicate paint used on the upper part of the walls. We also once painted a small wall section in an awkward spot of an old kitchen (where there should have been a tile backsplash) with latex paint, hoping that stains and splashes would be easier to remove. The opposite happened: tomato sauce stains soaked in immediately and left pink marks that couldn’t be removed. If you scrub too hard, the surface gets damaged and small crumbs come off. I strongly advise against using it.

cryptoki schrieb:

Thanks. Wouldn’t it actually be easier to embed a reinforcing fleece directly into the silicate filler and then paint it straight away with silicate paint? Why is this done less often? That would eliminate the steps of priming and gluing painting fleece.

For painting fleece, I would prefer glass fleece. Cellulose fleece seems more sensitive to moisture/mold, or am I mistaken?

I’m interested in the answer to this question as well. We did exactly that in our old apartment: embedded fiberglass mesh in the filler, applied mineral primer, and then dispersion silicate paint. It looked much nicer and more high-quality than painting fleece and created an excellent indoor climate. In our current (temporary) apartment, the landlord had painting fleece glued to the walls, and in our opinion, it looks terrible. Every drilled hole remains permanently visible, and the walls absorb moisture much worse. To put it bluntly, it feels as if the walls were wallpapered with plastic sheets. I don’t understand why anyone would choose that. I assume it’s due to lower costs, less effort, and easier application.