Priming Anhydrite screed - Tile Advice

[DHThompson]

Hi folks,
I’m just about to start tiling the ground floor of my house with Limestone tiles, the area is around 80m2. The floor has a anhydride screed which I have recently sanded and hoovered. I planned to prime the area with neat ROCATEX acrylic primer twice before I lay my decoupling mat. I ran out of ROCATEX after the first application so (stupidly) added a PVA water mix (3:1) to do the second coat. Can anyone advise if this will cause problems, and if so how I can remove the PVA?
Thanks

 

[Flintstone]

Not good !
I would say your gonna need to sand the screed down and start again. A few questions.
Is it heated ?
Is it dry ?
Has it been sanded ?
Are you uncoupling ?
What adhesive are you using ?

 

[Flintstone]

There is one option actually and that is to Lay BAL flexbone 2easy.

 

[hmtiling]

If you go the sanding route don't apply first coat neat.