Tiling

Hi


Just after some advice.


I read on the internet that's its not advised to tile over paint and with the paint in my bathroom being the waterproof stuff I have stripped it all off.


Dead easy...


But it has also take the layer of paint off that was underneath and exposed the bear plaster, which is dead neat and clean, looks like it was only plastered very recently.


What am I best to do with the plaster before I start tiling to ensure I get a solid stable fix.


I have read to mix PVA with water but I have also read that I shouldn't do that.