Ditra mat on Cemfloor

[djkprojects]

Hello all,

 

I have a cemfloor liquid screed (with UFH) which I ‘m going to install Ditra mat on and then tile on top.

 

I’m going to abrade the screed but what’s not clear to me is whether it should then be primed.

 

I’ve always used BAL adhesive and it states to prime with ADP but not when installing decoupling membranes.

 

I’m using UltraTile SPES adhesive this time (never used their adhesive before) and they state to prime the screed with their UltraTile Primer but don’t specify whether this applies when installing decoupling membranes.

 

Anyone has any experience here?

 

Thanks

Edited September 10, 2023 by djkprojects
Typo

[Bonner]

I would follow the adhesive manufacturer’s recommendations. Primer is used to ensure the adhesive bonds to the floor, whatever you are sticking on top. Having said that, our resident expert @nod, may know other tricks of the trade.

[nod]

1 hour ago, Bonner said:

I would follow the adhesive manufacturer’s recommendations. Primer is used to ensure the adhesive bonds to the floor, whatever you are sticking on top. Having said that, our resident expert @nod, may know other tricks of the trade.

Spot on

Always prime 3-1 SBR is fine