Have painted straight onto plaster without mist coat - help!

[Falcon1]

I spent all of Saturday painting a coat of primer onto a newly plastered ceiling. The plaster was dry, but I've only just been informed that I should have used a mist coat first. Damn! How bad is this mistake? Do I need to do something before painting the top coat? Is it all going to flake off?!

Bumping for you since it's probably a time sensitive issue. Have you noticed any problems so far?

I've recently painted almost my whole house onto new plaster (huge renovation job). So long as the plaster is dry (it's gone pale) you'll be fine - I just put a coat of cheap white emulsion on first then my coloured emulsion on top, I've had no problems at all.

I've painted straight onto plaster and it was fine. The plaster was definitely completely dry though. Only found out about a mist coat a few weeks ago, plasterer never mentioned it

It just uses more (expensive, coloured) paint if you don't seal it first with watered down PVA or cheap emulsion

We've got a couple of walls that we did it to a good year and a half ago - took more paint (which is why they suggest cheap white emulsion) but it's been fine.

Oh that's a relief, thank you all! There is a bit of flaking around the metal rim of the plasterboard, but I don't know if that's because of not using a mist coat or not. I think I might just hire a decorator as I clearly don't know what i'm doing!