Ditra on Anhydrite

[Mark@Tilemaster]

Its no problem sticking to the fleece back Peter. Tilemaster AnhyFix is ready for launch in 2 weeks time and our adhesion strengths are in keeping with a C2 rated cement based adhesive which is very encouraging.

When using our product with an uncoupling membrane, absolutely no reason for any concerns!

 

[DHTiling]

Its no problem sticking to the fleece back Peter. Tilemaster AnhyFix is ready for launch in 2 weeks time and our adhesion strengths are in keeping with a C2 rated cement based adhesive which is very encouraging.

When using our product with an uncoupling membrane, absolutely no reason for any concerns!

Any primer required.. ? ...

 

[Mark@Tilemaster]

Strictly speaking no David because the AnhyFix is 100% compatible with anhydrite/calcium sulphate screeds.

We are recommending, however, one coat of primer, diluted with 3 parts water. The reason being to reduce porosity and remove dust, no other reason. For the same reasons you would prime a concrete or sand/cement screed prior to tiling.

 

[DHTiling]

Nice one... i await having a look at the new adhesive....


I take it is ok with wet heating etc, which is associated with these pourable screeds.. also have you any spec PDF on it yet.?

 

[Mark@Tilemaster]

It is, all UFH systems. We will have the end product ready early next week so we can supply samples David if its of interest. Tech data sheet I just need to finalise.

Anybody else wanting samples of AnhyFix please say and i'll make the arrangements.

 

[Lee@emctiles]

Me please......

 

[DHTiling]

Yes please... i will try some... will be very interesting to try it.. these gypsum adhesive are great for wall tiling as well to newly skimmed walls as gypsum to gypsum is the best compatibility IMO.

 

[DHTiling]

Saying that.. i take it is gypsum based or is it like Kerakoll h40 which is a friendly adhesive but dries by dispersion..?

 

[Gazzer]

It is, all UFH systems. We will have the end product ready early next week so we can supply samples David if its of interest. Tech data sheet I just need to finalise.

Anybody else wanting samples of AnhyFix please say and i'll make the arrangements.

Yes please, I was talking to Widerange Tiles about this very subject recently. They are pushing epoxy primer and SPF adhesive, but when I explained that in a real world where you would have to give 2 coats of primer over the required drying times. It would be easier to use the more expensive gypsum based adhesive and get the job done quicker. Obviously it depends on the size of the areas to be tiled.
They had asked if I had used it yet as I believe they have been talking to yourself about it.
So again yes please to the samples and Widerange will hold them for me . Thanks

 

[Andy Tiler]

It is, all UFH systems. We will have the end product ready early next week so we can supply samples David if its of interest. Tech data sheet I just need to finalise.

Anybody else wanting samples of AnhyFix please say and i'll make the arrangements.

I'll try a sample mark?.
Cheers

 

[Mark@Tilemaster]

Its different to the Kerakoll Ideal David and Anhyfix doesn't rely on dispersion. Its a rapid setting gypsum based adhesive that will set within 3 hours. AnhyFix is made with a blend of gypsum based materials, one of them a rapid setting product and the usual herbs and spices so it doesn't rely on suction from the tile or substrate in order for it to set.

Its also ideal for new plaster skim, but cannot be used in wet/damp environments.

My understanding on the Kerkaoll product is that it doesn't contain much, if any gypsum, i believe its based on the marble dust etc but how true this i don't know? I have heard of the Kerakoll taking a while to set when used in conjunction with an uncoupling membrane.

 

[Mark@Tilemaster]

you can pay for yours andy!

 

[Mark@Tilemaster]

Leave it with me Neale and i'll take care of it for you. Had an excellent response so far by the way

 

[Al@Lifetiles]

Just to add a real life situation to this thread... I was about to tile a 70m2 (UFH)Anhydite screed with the following prep: labourer sanded and applied 1/1 Mapie Primer G, allowed to dry overnight then neat primer G. Ditra was then fixed with Mapie Keraquick mixed with Latex plus. The stone (supposed to be 15mm thick) arrived on a slow boat from China and was 18mm thick! The floor flowed through glass doors to an outdoor patio so the heights had to be exact. End result was Ditra had to be lifted so floor could be sanded back. Lifting the Ditra was near impossible. Specialist floor grinding company called as the Ditra was stuck solid and we simply could not get it off floor.
Just thought I'd mention it.

 

[Andy Tiler]

you can pay for yours andy!