Painting after a plaster skim

[B17NNS]

In future I'll keep my ill informed opinions to myself

[rb5er]

Spudler said:

AlmostUseful said:

Will prime it and see what happens... It's only a few sq metres, can be sanded off easily enough if required.

So, not really worth asking in the first place.

As had been said several times it doesn't need "priming" or "sealing" just mist coating.