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

[Rich]

a lot longer pot life than , creative impressions gypsum based addy,
how long as the webber one been on the market

I couldnt say how long it has been in production, it is only available from france and in french bags. Iv been told that there are no british standards regarding gypsum based adhesive, thats why its not made or sold over here.

What adhesive is the creative impressions?

 

[DHTiling]

a lot longer pot life than , creative impressions gypsum based addy,
how long as the webber one been on the market

It has been in the uk market around 5 months now if i recall right..

 

[nybor62]

i did a job last year , gyvlon floors about 300 m2 in total using creative impressions gypsum addy as recommended by ajax , who did come out to see me on the job, have never had a call back the addy worked great
but the pot life was about 20 mins , you could only mix about enough for 2-3 m2 at a time
ajax was most helpfull top man

 

[Ajax123]

a lot longer pot life than , creative impressions gypsum based addy,
how long as the webber one been on the market

in France for several years. In the UK since about mid last year. I have been pestering various suppliers to get their gypsum gear into the UK and Weber listened. There are a few others on the way as well. The creative impressions stuff I think has had a slight change to formulation to give it a longer pot life as well. As for wet areas bear in mind the adhesive should not be used in areas where IT (the adhesive) might become constantly or persistently wetted. I would not use it in a walk in shower for example but I would be happy to use it in a domestic kitchen or bathroom.

 

[Ajax123]

That made my ears prick up as well Dave.

Just to add, both me and the supplier that I used to get this adhesive in were told by one of the reps that there is no need to prime the anhydrite screed before tiling, then when I got hold of the info above it clearly states to "Prime with Weber PR360 primer and allow to dry". Not to blame the rep but there is very little info on this stuff and I want to stress the importance of making sure that the prep is right.

It will depend largely on the moisture content of the screed at the time of tiling. the primer is essentially just to prevent the dry screed from sucking the moisture out of the adhesive. If the moisture content is high in the screed say up to 2% then the screed will not suck the life out of the adhesive and the screed may not need to be primed. I think though for the time being untill someone can offer a warrant that not priming will be ok I would prime.

 

[Rich]

I have been using the Weber adhesive today, no problem at all to work with. The bags are suprisingly easy to lug around (didnt realise how used I had got to lifting 20/25kg) being only 15kg. Mixed up well, hard to describe but felt very fine but with gritty bits in it. I was using it wet as I was pouring with it, pours out nicely and hold the notches of the trowel very well as well as being nice and creamy to spread around. I was expecting to have limited time to work with it but if anything I would say that it wasnt going off quick enough but this may have been down to the fact that it was a cold and damp day.

I have left a little bit of mixed gypsum adhesive on the screed in a room that is not being tiled and I am going to leave a little bit of cement adhesive next to it so that I can see how much better the gypsum bond to the anhydrite screed than the cement.

So all in all a big thumbs up to the Weber gypsum based addy, I hope it is easier to get hold of soon as it is nice stuff to work with

 

[GiddyUpNeddy]

Could I ask which suppliers stock it and how much does it cost?
I have just looked a job (60 x 60 porcelain floor, appx 30m2, Under floor heating, anhydrite screed)
The client has had the floor laid twice by the same company and the tiles have blown completely. The company has now also gone bust!!
I was planning to strip everything off, cut out around the perimeter and install an expansion strip through the screed, scrabble the top of the screed,
prime as required and re-tile using Weber.set flexi. But, I would use the gypsum based addy if it is available.
Does anyone have anything to add to what I have planned?

 

[Qwerty]

I have left a little bit of mixed gypsum adhesive on the screed in a room that is not being tiled and I am going to leave a little bit of cement adhesive next to it so that I can see how much better the gypsum bond to the anhydrite screed than the cement.

So all in all a big thumbs up to the Weber gypsum based addy, I hope it is easier to get hold of soon as it is nice stuff to work with

Rich, how did they compare in the end?...... a long time ago I know, but interested to see as got an anhydrite screed job soon. Ta mate

 

[Ajax123]

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

 

[Qwerty]

Doh! Cheers for that!