Primer for utility room - fresh screed

Hello,

I was advised to prime the area of the heating system in the utility room shortly before the installation of the heater, as this is apparently difficult to do afterwards, and many builders tend to skip it.

The situation now is that at the time I could paint, there is fresh (but already walkable) screed, and the walls are not yet dry. They have a few millimeters thick gypsum scratch plaster.

Normally, it is recommended to work on the walls only after the building drying process. But since this is not about a perfect result (but rather an improvement compared to the alternative of not painting the area at all or doing so under very difficult conditions), this would probably be negligible? Or are there other reasons besides the quality of the result to wait for the drying?

How would you approach this?

How would you approach that?

We were also given the opportunity to paint. We gladly did so: it was the first thing we were allowed to do productively ourselves in the house. It turned out to be a nice coat including priming with emulsion paint. The plaster can also dry with the coat.

Exactly. Deep coat it, then dispersion paint. It will dry over time.

Did you paint directly on the plaster? Regarding dispersion paint, I read that it is not suitable for plaster because it seals it. Our utility room is in the basement; should one possibly pay special attention to the type of paint selection for the basement?

So, our entire house has gypsum plaster walls except for the bathrooms. My brother is a master painter. He and I did all of it. Sanding, plastering, sanding, primer, Sto basic dispersion paint. That is completely correct professionally. In the bathrooms and kitchen, we applied fiberglass and painted with latex. K.

Did you paint directly on the plaster?

No... primer first...