Coat, plaster alt. Render?

[andreashj]

The previous room was tiled so the surface finish wasn't important there. The plaster can be sanded directly without first applying compound.
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[NordiCs]

In our newly built house, we skim-coated the entire ground floor with Maxits Gypsum and then painted with Beckers Silicate paint. We did this ourselves by first filling the worst unevenness and then scraping the wall smooth with a spatula once it dried, after which we filled the wall again to make it completely smooth, and finished by scraping it once more with a spatula. After this, we painted with white silicate paint, and we are very satisfied with the result; we got a smooth wall with a real basement feel.

The wall was originally built with something called Lammiblock (http://www.lammistenhus.se/sida1_2.php?s1=1).

Personally, I found it very easy to work with for a layman like myself, but it ended up with me having a partner who likes to dabble, so she ended up doing most of it ;D

 

[andreashj]

Nordics, can you define "kä llarkänsla"?

I have no experience painting on gypsum, but my wish is to be able to sand the wall to make it so smooth that the "käöllarkänslan" is eliminated!

Do you have a close-up of your wall?

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[LyckeKonsult]

Thank you!
While we're on the topic of gypsum plaster; is it possible to apply thin layers a few mm on existing plaster? Where existing plaster has fallen, it becomes thicker. Is there a risk of cracks?
What should be considered regarding the preparation work?
/a

This is a quote from another thread that I continue here...
Yes, it is possible to apply thin layers and also repair holes where the plaster has come off.
Since the gypsum plaster does not shrink when it dries, the risk of cracks forming against the surrounding plaster is small.
If you are to apply thin, you must ensure that the water is not absorbed too quickly into the substrate... priming may be necessary...

 

[andreashj]

Thank you and bowing. Now I feel strengthened for this weekend's work! /A

 

[andreashj]

Now we are at it again.
Can you refresh a painted concrete ceiling with gypsum plaster? I'm thinking of hiring a plastering company for this but I'm a little worried about whether it will last, i.e., no cracks in the future

The ceiling is concrete with old plaster. It looks like cheese with lots of drill holes and other things (has been a garage). Some form of paint (probably plastic) is applied to the existing plaster. Is it enough to scrape off all the loose stuff, prime, and then plaster with Gypsum?
Or does it need mesh to prevent it from falling down or cracking in the long run???
/A