What is the best adhesive to use on sand and cement screed

[Like_knowlege]

My builder is laying porcelain tiles onto new screed. (75mm). We will let it dry for 3 weeks and use ditra matting also.

What would you recommend as the best adhesive to use ?

We are laying a total of 50m2. The tiles are 8mm thick, and the width and length is 20cm and 120cm respectively.

I am thinking of a 3mm grout between the tiles .

[wine~o]

I would query whether 3 weeks is enough.. Double that I'd have thought.

Mapie keraflex is my preference for porkies.

[darrenba]

Surely your tiler would be using what they recommend?
It's not for the client to choose the adhesive

[steviejoiner74]

And 3 weeks seems a bit soon unless it's been awfully warm in your neck of the woods.

[Handyman in Sussex]

With all of the above.

1mm per day drying time = 75 days.

Have you got UFH in the screed and if so has it been through it's warm up procedure yet? You can start that at 3 weeks.

Tile adhesive is for the tiler to choose not the client. (Or is the builder doing the tiling and asking you what to use......)

[Like_knowlege]

Thanks for all your suggestions. I found someone who said I can tile in 5 days. They use a additive and it is the real deal. So none of the 1mm per day waiting times

[Ktuludays]

With all of the above.

1mm per day drying time = 75 days.

Have you got UFH in the screed and if so has it been through it's warm up procedure yet? You can start that at 3 weeks.

Tile adhesive is for the tiler to choose not the client. (Or is the builder doing the tiling and asking you what to use......)

And if it cracks does he cover any remedial work?

Sent from my HUAWEI VNS-L31 using Tapatalk

[Like_knowlege]

yes and insurance backed and been a month now and no problems

[bc5843]

Out of the 2 tilers I've used, they used either Dunlop or Norcros... not sure if they have a suitable tile adhesive for sand or cement screed, but might be worth looking at what they have available.

https://www.dunloptrade.com/tiling/tile-adhesive/
http://www.nxadh.co.uk/product-range/

Hope that helps!

[kave]

Old thread, but on the first page. The OP asked a simple question, so I thought I would respond with a simple answer for anyone searching in future.

For a sand and cement screed, any cement based adhesive is compatible and will give a perfect bond, after all they are both cement based. It's only liquid pourable screeds, calcium or other anhydride screeds which are fussy and require special attention paid towards adhesive selection.