Info on Weber.Col anhydrite 2 Gypsum based adhesive...

[DHTiling]

N&C Nicobond are just about to launch their gypsum based adhesive to market. It is called Gypfix and will undoubtedly be in their distributors in the next few weeks. Site trials are being carried out as we speak. Also Creative Impressions are now looking at increasing their own distribution network so at last the industry looks like it is listening to the need for gypsum on gypsum.

I think the weber stuff has been temporarily withdrawn due to the French packaging

Weber are going to make it in the UK.. should be out late this year to early next year.

 

[Daz]

I missed this thread first time round - Doh!
Yeah, I did around 80sqm of 600 x 600 porcelain with it at the beginning of the year. As Rich has said it is easy to work with, although you do need to clean your trowels regularly otherwise they will just get gummed up and trashed. I used it to stick tiles directly to the screed and to stick the "old style" Dural Ci in the wetroom.

I've got some pics of the coverage on the back of a tile and it is good; I'll try and find them.

But as Dave advises, the product is not actually available through the UK market yet so you'll need to source another manufacturer shorterm.

I will be trialing the N&C offering in approx 4 weeks time which I'm looking forward to. All the technical information and support that I have received from N&C to date has been excellent and I am satisfied that the product will perform well. I'll try and do a report once the project gets underway.

 

[Ajax123]

you changed your name Daz.......you speeded up a bit now then or what?? ;P

 

[Daz]

:lol: Alan, I thought Daz was more personal especially as that is how most regular contributors know me.

 

[Rich]

I had a chat with a Weber rep the other week and he told me that Weber were pulling their gypsum adhesive because they are very close to developing an adhesive that will bond to both cement and anhydrite screeds and they have had far to many people using it to tile onto sand and cement.

Geoff, I left that site before I could find out the results of my little experiment unfortunately.

 

[Anthony Rigby]

Firstly I'm a DIY'er if that makes any difference but I'm also an industrial chemist and this bonding to calcium sulphate screed is really interesting....I'll get my coat ;0)

After having a chat with Ajax I've plumped for the Gyvlon screed, 35 square meters laid by these guys... TW Pump Hire - Liquid / Flowing Screed Application (ps thats not an advert as I'm not connected at all but merely recommending them from experience)

It's been in a while now and we've had the wet UFH on so it should be quite dry. Now as a DIY'er trying to find somewhere that did Gypsum based adhesive was neigh on impossible however by luck creative impressions is located about 20 mins from where I live. I took a drive down there yesterday and picked up some bags of their GBTA along with some primer.

I decided for the sake of the short while to prime the surface after ensuring all the laitence had been removed. The primer looks very much like PVA although it did smell like it had some type of ammonia based compound mixed with it. Two coats of primer went on easily and was no issue at all.

I'll report back as to the use of the GBTA and my experiences once completed.

Two tilters type questions first if that OK?

I'm putting Tavertine 60x40 stone down, what bed size would you plump for? I was going to work on 3mm however I'm not sure if thats sufficient?

Also the room is open plan so I was going tile half of the room, move the furniture, kitchen units etc to the other half once tiled and allowed to dry and do the other half... will this be OK?

Cheers for now..

Ant

 

[Daz]

Hi Ant & welcome to TF,

Travertine, 35sqm & wet UFH.....have you considered a decoupling membrane too?
A decoupling membrane will eliminate any lateral movement and therefore reduce the risk of the stone cracking with the UFH.

How thick is the travertine? This will help advise the most suitable trowel size to use.

As far as furniture is concerned, you will be fine moving things around provided everything has dried properly. Just be careful with regards to scratching, sealing etc..

Good luck,

Daz