Sandbagger are you suggesting the zinsser instead of tiling or under the tile to prime the green board.
Prime walls prior to tile john bridge.
Most importantly do your homework.
Start by removing any molding switch plates outlet covers and other hardware attached to the area being tiled.
Patch any cracks or holes with spackling compound and sand smooth.
If you are tiling over brightly colored walls with translucent tiles apply primer to the walls prior to sanding so the color doesn t bleed through the tiles.
Vacuum clean and wipe the walls.
Sand any high or uneven spots to create a level surface prior to tile installation.
It will look great.
However prime and paint your baseboards before you install them.
Prime the wall with thinset and allow ample drying time.
I read for about 4 months from a great free forum john bridge tile forum and asked a lot of questions plus you can read all about others mistakes and learn from them.
Of course john is right tile and then baseboards.
Start with planning your wall tile installation.
If i m using it to prime under tile we re back to the original question of this post.
Do a precise measurement of the surface.
My question is do i need to prime a wall somehow.
Like davy and cx i don t prime drywall before tiling.
Or prime and paint the entire wall room before starting with your tile project.
Then go back and fill and touch up the nail holes.
Or do i just put the adhesive straight on the wall and stick the tiles on like i always thought.
My tiler said to get some pva for priming after looking on the web i understand pva should not be used for bathroom tiling priming.
Count how many tiles you ll need.
The technical folks from thinset manufacturers that i ve talked to prefer not to apply thinset over paint due to the fact that wet thinset has a relatively high ph level and will work on softening the paint until it dries.
Prime the surface prior to the tiling.
The technique of layering means for you to apply one layer of filler and let it dry before you apply the next coat.
I can t stress this enough.
When i said mortared and screwed i meant glued and screwed with construction adhesive to the old plaster ceiling and screwed through the joists which.
Prime an area larger than you plan to tile to minimize the cut in work when you paint the rest of the room.
Getting my bathroom tiled on thursday i have the tiles spacers grout and adhesive all ready and tile strips.