weberset spf question

[hmtiling]

I'm not one of the members who'd use it with gulf stone though. Bag and bottle for me

 

[J Sid]

Tilemaster ultimate s2. Using it at the moment and it's quick

what you using it to fix Harry?

 

[hmtiling]

what you using it to fix Harry?

It's overkill but a failed floor. Part screed(traditional) and part ply. Ultimate underneath and above decoupler

 

[hmtiling]

And a soft joint before anyone says anything

 

[J Sid]

And a soft joint before anyone says anything

goes without saying

 

[SJPurdy]

you missed copying
"Using the thin-bed method and following all applicable industry standards, set the tile or stone covering directly on the Schlüter®DITRA 25 in such a way that the tile adhesive becomes mechanically anchored in the square, cut back cavities of the Schlüter®DITRA 25 matting.

notice the mechanically anchored and not chemically fixed.

but if fitting, say gulf stone who recommend a two part adhesive or the TM equivalent as favoured by many members on here, Schluter say you mustn't use these adhesive on ditra due to these adhesives bonding / chemically fixing to the plastic and stopping the product uncoupling.

Also care should be taken if laying tiles "immediately" after laying the ditra. un-cured adhesive sticking the ditra mean tiles can't be lifted without pulling the ditra up.

I just checked the Schluter web site installation instructions for ditra 25 and it is still as I stated. I understand what you are saying regarding not to bond to the plastic (with for example a two part addy) but there is still no warning in the online fixing instructions.