Anhyfix fail on ditra matting - TilersForums.com

[Dumbo]

I very rarely put down ditra or dual and tile to it the same day as I learnt early on if you have to lift a tile the matting comes with it . No chance next day . Still wouldn't of worried to much as I believe ( please feel free to correct me if I'm wrong) Schluter first marketed ditra as a loose lay system that didn't require sticking to the background

 

[Old Mod]

Just like Ardex 'Jawbone' is now, it's a new product in the states.
Although it's not called 'Jawbone'here, and I'm pretty sure it's not by Ardex either!
Go figure!

 

[Simons70]

In the end of day ditra is just a plastic.We try to avoid ditra and use Bal matting where is possible, lay down with Ardex 200.

 

[Chris Gibbs]

I very rarely put down ditra or dual and tile to it the same day as I learnt early on if you have to lift a tile the matting comes with it . No chance next day . Still wouldn't of worried to much as I believe ( please feel free to correct me if I'm wrong) Schluter first marketed ditra as a loose lay system that didn't require sticking to the background

I very rarely put down ditra or dual and tile to it the same day as I learnt early on if you have to lift a tile the matting comes with it . No chance next day . Still wouldn't of worried to much as I believe ( please feel free to correct me if I'm wrong) Schluter first marketed ditra as a loose lay system that didn't require sticking to the background

i do know that it needs to stick down to the floor upswing the matting as its main key, otherwise there wouldn't be any matting in on the back. That's not the issue though really, just trying to inform people about gypsum based adhesives on uncoupling membranes cos it can be expensive trying to remedy later on, especially with a new aga fitted on top haha

 

[Ajax123]

Never had this issue. Seen lots of anhyfix used with and without uncoupling. Have you spoken to tilemaster aboutnit to find out what went wrong?

 

[One Day]

I'm going to defend Anhyfix here. I take your point Chris and you're right - to a point.
Anhyfix doen't work quite like cement based adhesives.
The first time I used it was on a floor which was to take 30 grands worth of tiles. So I wanted everything right. In my mind, and as far as common sense told me - it was a good idea to fix the Ditra with a gypsum-based adhesive. Schluter said no, but only because they hadn't tested it.
I used it and was shocked at how easily it lifted - even after 48hrs.
Honestly though; after a few days or more you will not get it up. The bond strength is very gradual, but ultimately very strong. I know this because on the same job I had to lift 9 tiles due to a set-out error (not mine) two weeks later.

I trust it, and I'm using it regularly to fix my Ditra to anhydrite floors.

 

[Dumbo]

I'm going to defend Anhyfix here. I take your point Chris and you're right - to a point.
Anhyfix doen't work quite like cement based adhesives.
The first time I used it was on a floor which was to take 30 grands worth of tiles. So I wanted everything right. In my mind, and as far as common sense told me - it was a good idea to fix the Ditra with a gypsum-based adhesive. Schluter said no, but only because they hadn't tested it.
I used it and was shocked at how easily it lifted - even after 48hrs.
Honestly though; after a few days or more you will not get it up. The bond strength is very gradual, but ultimately very strong. I know this because on the same job I had to lift 9 tiles due to a set-out error (not mine) two weeks later.

I trust it, and I'm using it regularly to fix my Ditra to anhydrite floors.

As I said earlier I don't fit matting and tile the same day as If you have to lift a tile the matting comes up . So if you were to do things like I like to would you recommend fitting the matting then leaving it for 2 clear days before tiling to prevent mat lift if you have to reset tile . Also does anybody know if tilemasters own matting suffers this same problem .

 

[One Day]

As I said earlier I don't fit matting and tile the same day as If you have to lift a tile the matting comes up . So if you were to do things like I like to would you recommend fitting the matting then leaving it for 2 clear days before tiling to prevent mat lift if you have to reset tile . Also does anybody know if tilemasters own matting suffers this same problem .

Agreen is a pain if you need to lift a tile. Ideal world, yes you could wait a few days.
If an anhydrite floor is done properly though it will be so flat that you won't need to lift any tiles!
I've never used tm membrane with anhyfix so I can't comment...

 

[Dumbo]

Agreen is a pain if you need to lift a tile. Ideal world, yes you could wait a few days.
If an anhydrite floor is done properly though it will be so flat that you won't need to lift any tiles!
I've never used tm membrane with anhyfix so I can't comment...

When you're as bad with a trowel as me there aren't many that don't need lifting .

 

[Flintstone]

Every anhydrite I've seen has been pretty much perfectly flat. There shouldn't be a need to lift tiles but sometimes tiling defies logic!