Do I prime skimmed and bare plastered board walls before tiling?

[glass256]

I have recently stripped the bathroom. I have 2 walls in non water area. One wall is new plasterboard and the other wall is skimmed plasterboard that I have managed to get most of the paint off though planing to use a 120grit orbiter to clean off any loose pain

Both these walls will be tiled over. Do I need to use a specific type of primer on these two types of walls before calling a tiler in to tile the bathrrrom

Thanks

 

[Slippery]

yes, use either SBR or acrylic primer.
Your tiler should do the job and he will probably have his favorite, if he was going to go ahead without it, call a real tiler!