ᐅ Which primer and paint are suitable for gypsum plaster in new construction?

Hello fellow home builders,

The thread title says it all: The plasterer will soon start applying gypsum plaster to the walls of our new build. He said I need to sand the sinter layer, apply a primer, and then paint. So far, so clear.

Which primer should I use for this?

Which paint is suitable for this? So far, I’ve read online that you should use silicate dispersion paints or lime paints because they are breathable and help maintain the plaster’s climate-regulating properties...
However, the plasterer told me today that "lime paints don’t work" and that "I can also use any regular interior paint like plain white emulsion...". What is correct?

Best regards,
kirsel

We applied a silicate-based primer, followed by a silicate interior paint. It worked really well, but neither product was cheap (which I would generally advise against for a home). I’m not sure what else is suitable or what should be avoided when used with gypsum plaster.

One00 schrieb:
We applied a silicate-based primer and then painted over it with silicate interior paint. It worked really well, but both products were definitely not cheap (which I would generally advise against for a private home). I’m not sure what else is compatible or should be avoided when used together with gypsum plaster.

Please tell me which products you used. Thanks!

kirsel schrieb:
a these are vapor permeable and maintain the plaster's climate-regulating property...

The gypsum plaster is rather not vapor permeable.

We painted the entire house with Caparol Indeko Plus. For primers, we used various kinds (from branded products to no-name ones from the hardware store). The final result is identical everywhere.
Only with the paint did we focus on quality – and it is really expensive. Some painters used Caparol for the neighbors as well.

What are your opinions on the two theories mentioned in the first post?
Which color type is suitable for plaster and which is not?