Painting on plasterboard in bathroom

[markyyyyyy]

Hi all

I have put up normal standard plasterboard (12.5mm thick) on my BATHROOM ceiling.

I intend to paint it white

What do I need to do in order to make it waterproof, but also in a state to paint. My understanding is this:

1. Get some Matt emulsion and add water to it to act as a mist coat
2. Paint it with normal paint once the mist coat has dried

Do I need to skim the ceiling or can I just put mist coat then a coat of paint straight on to the board as it is (once I have filled in the joints).

Also, when painting on to moisture resistant board, is the process the same?

Thanks

 

[emilybronte]

Plasterboard is designed to be skimmed, not just left unskimmed and painted. In a bathroom it is especially advisable.

So, get it skimmed, then when dry, mist coat it.

Then you can apply whatever paint you choice - but I'd recommend an eggshell finish if there is any danger of steam getting to it.