Got a leaflet through my door yesterday........
For a new product from Stonefix... CI75, fix ditra etc to anhydrite without priming ! Saving cost of primer & labour...
Bloomin expensive,around £270.00 for 8 litre tub,however covers very large area at 1mm to 2mm depth of bed !!
Not intending buying any,but wondered what the guys at BAL thought of it ??

I got that in the post too. I didn't imagine it was that expensive. Is it ready mixed, it seems to come in a tub?

Think 1 litre will cover around 12 sq m
Ready mixed.
Guess only suitable for perfectly flat floor,otherwise it would not fully stick using such a thin bed

Priming won't be an issue if using what could be tubbed acrylics to fix Ditra to anhydrite screed, the problem is always removal of the laitence....that is dity,dusty and labour expensive

And how will this ready mixed dry as it's being covered in ditra? And ready mixed on a floor, not on my watch.

Yes I saw this leaflet as well..... It isn't half the price it isn't half the height and it is half the truth!!!

The BAL Solution.

Anhydrite Screeds

1. Prime with two coats of BAL PRIME APD. Allow to dry between each coat.
2. Tile with BAL SUPERCOVER RAPIDSET FLEX or BAL equivalent.

Notes: In order to use the Ci75 Stonefix product to be applied, according to the data sheet, the anhydrite screed still has to be dry to the same level as primimg followed by tiling with BAL SUPERCOVER RAPIDSET FLEX i.e 0.5% water by weight or 75% Reletive humidity or below. There is no advantage there.

The build up to our system is about 3-4mm maximum compared to about:

1-2mm Ci75
3-4mm matting
3-4mm Tile adhesive


Timber Floors

If Chipboard is stable

Fix tiles direct in a 3-6mm solid bed of BAL SINGLE PART FASTFLEX.

Notes; Plywood is only necessary onto a timber floor if the existing chipboard floor is not sufficiently rigid and stable enough. Anti-fracture membranes such a Ditra matting (or Stone-Fix's) will protect tiling from lateral movement but will not prevent cracking of the tiles if the floor is subject to movement or deflection. Therefore, you still have to overlay with plywood, in my opinion.

It is claimed on there data sheet that Stone-Fix Ci75 can be used for fixing down tilebacking boards. Stone-Fix Ci75 can only be applied to a 1-2mm depth for the fixing of Tilebacking boards. Therefore this product would not be suitable for most walls or for floor s that are not billiard table flat. Threrfore in the case of floors, self smoothing compound would most definately be required. Alternatively BAL or other cement based adhesives can be bedded up to 3-4mm or can be used on either wall or floor

Thought so
Cheers

I had this leaflet too - nice and shiny wasn't it?

Full of cack though.

Are Anhydrate screeds common in the UK? Over here in Ireland we are having all sorts of problems with these screeds being sold with only have the information that the consumer needs about it. We come in looking like the bad guys when we fill in the blanks.

james

Yeah, they are getting more and more popular. They have even crept into the domestic market with not only new builds, but even some conservatories being done with them.