Removing bathroom tiles damaged plaster

[Marlon]

Hello,

I have removed old bathroom tiles in preparation for putting up new ceramic tiles.
In the process of removing the old tile skim coat and some other plaster below this has come off also, leaving a powdery plaster type substance and in some places exposed concrete (concrete constructed property).

What would be the best product to cover the wall in preparation for tiling? Would one coat plaster be ok?

Many thanks

 

[Andy Allen]

One coat plaster would be fine or you could dot and dab new platerboard to the wall.