Tilemaster Ditra And Anhyfix

[F430]

Hi there, after some general advice here.

Just laid the the first time some ditra matting onto a anhydrite floor using TileMaster Anhyfix.

Did all the prep IE sand floor vacuum prime etc, all went well or so i think ??

So question how well should the Ditra stick to the Anhyfix ??

The reason why i ask is i have tried in a test area and to my surprise the Ditra comes up quite easy like it has not bonded at all to the adhesive.

The adhesive has stuck very well to the floor but not the Ditra mat?

I know it is an uncoupling membrane but surely it should stick to the adhesive ??

Getting a bit worried now, can anyone offer some advice ?

 

[Spud]

how loose did you mix it up and did you use a roller or block of wood to rub it in to the adhesive ?

 

[Time's Ran Out]

Just done exactly the same prep and didn't have an issue. Found the adhesive to be really good.
Have to admit though I didn't even try to pull any up!

 

[J Sid]

not used Anhyfix, does it skin over quickly?

 

[F430]

how loose did you mix it up and did you use a roller or block of wood to rub it in to the adhesive ?

I mixed it as per the instructions, was a good mix Ie not thick and not runny I used a grout float to push the mat into the adhesive, i pushed really hard and went over it 3 times in different directions and i ain't a light chap ! The floor is very flat and it all seemed to go on very well, I did pull a few parts up when laying to make sure i was getting full coverage.

My concern is over how long the supplier had the Anyfix for as the bags do look like they have been in the warehouse a while.

 

[F430]

Some photos if they work.

 

[Time's Ran Out]

not used Anhyfix, does it skin over quickly?

It's really good and it won't skin over within a couple of minutes it takes to lay the Ditra.
It's a very creamy adhesive but went off quite quick and hard.
Seemed like a good combination to me.

 

[LM]

I can't understand why Schlutter won't recommend an adhesive for sticking down Ditra to a dry screed like they do with af200 on ply. I've fitted thousands of metres of stuck down carpets direct to screeds and believe me when I tell you they stick like sh*t, you try pulling up a needle punch carpet that's been stuck down, you have to cut it into 4-6 inch strips, use a clamp and pull with all you've got to get it up, so I can't get why you can't stick Ditra to a screed with an acrylic adhesive

 

[Time's Ran Out]

Only suggestion is check the bags for date of manufacture.

 

[F430]

Only suggestion is check the bags for date of manufacture.

All i can see is a batch number which is 24021605

 

[J Sid]

I can't understand why Schlutter won't recommend an adhesive for sticking down Ditra to a dry screed like they do with af200 on ply. I've fitted thousands of metres of stuck down carpets direct to screeds and believe me when I tell you they stick like sh*t, you try pulling up a needle punch carpet that's been stuck down, you have to cut it into 4-6 inch strips, use a clamp and pull with all you've got to get it up, so I can't get why you can't stick Ditra to a screed with an acrylic adhesive

you can use AF200 on screed to stick Ditra

 

[LM]

you can use AF200 on screed to stick Ditra

I asked Schluter about this on the phone and they told me categorically no, hence my post

 

[LM]

I asked Schluter about this on the phone and they told me categorically no, hence my post

By no means I'm I claiming to be an expert about it, I'd just like a definitive answer from Schluter, in my opinion there's no comparison with the 'grab' of acrylic vs cemitisious on fleece like materials

 

[Ian]

All i can see is a batch number which is 24021605

Could that be 24th Feb '16? Batch number 5? All the tilemaster products I've used have a production date on them.

 

[LM]

View attachment 81893
you can use AF200 on screed to stick Ditra

What do you use on screed then Julian? I'd respect your opinion.