Is priming possible after a thin layer of paint?

Hello,

The painter didn’t offer me that and I didn’t know if it was necessary.

The painter must have assumed that you know the walls need to be prepared.

The ceiling has already been primed, can you afterwards apply primer on the paint and pretend that you are then doing the first coat? In other words, after applying primer on one layer of paint, apply 2 more layers of paint on top?

No.

Primers serve to prepare roughly porous, absorbent, and sandy substrates. They are applied before the wall paint; primers are transparent and fluid. This allows them to penetrate deeply into the substrate and strengthen the wall. A deep primer thus ensures the strengthening of porous and sandy surfaces as well as balancing the absorbency.

So, back to square one

Kind regards from the Rhineland

Hello,

I would like to add something. As the construction expert already said, deep primers serve to stabilize the substrate and thus create a load-bearing base (not necessary for gypsum plasterboards) but also to equalize the absorbency (level), which is necessary for gypsum plasterboards if they are only painted. Now your surface was wallpapered, probably with [Raufaser] (actually not wallpaper) and then painted. Here, a wallpaper primer should have been applied beforehand so that the wallpaper or [Raufaser] can be removed later. It is now too late for that (good luck to whoever has to remove the wallpaper later) but it can still be applied to the areas that were not wallpapered.

So:

Gypsum plasterboard only painted: 1x deep primer
Gypsum plasterboard wallpapered: 1x wallpaper primer (if patterned wallpaper, then pigmented)

Regards

Hello everyone,

I have installed smooth non-woven wallpapers. They are called Erfurt PLANO.