Priming Green Plasterboard

[daza1001]

Hello All

Do you still need to prime Green plasterboard before tiling with a cement based adhesive & porcelain tiles 600mm x 300mm . I have primed the shower area & tanked with the Mapei Kit.


Thanks all

 

[Chalker]

I do, but it's not needed.

 

[White Room]

I don't....

 

[daza1001]

Why is it not needed?

 

[Stef]

I prime everything I tile.
Its not needed but it stops as much moisture getting pulled from the adhesive & gives u a chemical key also.

 

[Qwerty]

As others have said......some do some dont. I always personally do

 

[White Room]

I don't prime standard board so why would I prime mrb...

 

[WetSaw]

I don't prime standard board so why would I prime mrb...

Because you're too tight to buy primer?

Is that the right answer? What have I won?

 

[Time's Ran Out]

Damp sponge!

 

[White Room]

Because you're too tight to buy primer?

Is that the right answer? What have I won?

Diddly

 

[WetSaw]

Damp sponge!

I don't think name calling is helpful.

 

[Spider0056]

After tanking the wetroom. I have weatherproof boards on the floor. I am concerned I could damage the floor boards while tiling the walls. Is it best to tile the floor first to prevent damage?

 

[Joseph Kover]

After tanking the wetroom. I have weatherproof boards on the floor. I am concerned I could damage the floor boards while tiling the walls. Is it best to tile the floor first to prevent damage?

Can do, especially if the floor joints run up on the walls, or cover the floor

 

[Joseph Kover]

I prime everything

 

[SJPurdy]

After tanking the wetroom. I have weatherproof boards on the floor. I am concerned I could damage the floor boards while tiling the walls. Is it best to tile the floor first to prevent damage?

I assume you mean you have prepared the floor (over-boarded?) and then tanked it and you are concerned about damaging the floor tanking. In most cases I would tile the floor first and then protect it with hardboard sheets tapped together and cut a few cm away from the walls so that I can see the floor joints and there is room to fit a spacer as I work up the walls away from the floor. The alternative is to protect the tanked floor with eg hardboard and then tile the walls leaving off the bottom course; which is then fitted after the floor has been done (because I think always best if floor tiles go under wall tiles).

 

[Flintstone]

I prime everything

 

[Dan]

If it's just tanking paint just give it another coat before you tile the floor maybe?

 

[bcd-87]

i prime everything, even the clients if they get in the way

 

[Italy]

Why is it not needed?

I do not know, to be reported mapei
This is enough for me.

 

[Kevbos]

If you doing a wet room always tile floor first and walls second it's standard wet room procedure creates best waterproof seal in internal angles.

 

[Stef]

If you doing a wet room always tile floor first and walls second it's standard wet room procedure creates best waterproof seal in internal angles.

How does that work?
What difference does it make if the walls are tiled 1st?

 

[WetSaw]

If a room is tanked, it's tanked. It doesn't matter what order you tile in as that's not want is making it waterproof.

 

[dbstiling]

Better to be safe than sorry. I prime everything.

 

[bcd-87]

So do I tile first and hem tank is that what your saying ?