Discuss What primer and adhesive - underfloor calcium sulphate in the Tile Adhesive and Grout Advice area at TilersForums.com.

judge

TF
Arms
351
1,078
Me and harry would be ok we have a quality screed installer down here . Each one is bang on . As regards moisture it says 1.5 %cm I expect that's the same as by volume . Just wonder what it is rh as that is what most of us will measure by .
I asked the bal rep what rh is acceptable for the flex one when I met them at my local topps to which he replied he wasn't sure.he said he would get back to me (about five weeks ago) .even though it's been tried and tested on the continent for the last ten years(I think) ?I'm still a little optimistic about it
 
H

hmtiling

That's not really the answer . I think schluter say 2%by volume with a cement based adhesive and I've never been able to find out what that is as a rh figure .
Rh changes with ambient temperature. It's a little confusing to me. Not the hardest thing to achieve
 
D

Dumbo

ive never used and will never use any cement based adhesive on a anhydrite floor.i must of done 50 plus floors which are anhydrite based, i always use tile masters anhyfix.to ether fix tiles or decoupling mat once mat is laid you can use a cement based adhesive
I did an alpha hemi hydrate screed where I had to put a cut tile until the next stage of work was completed . When I had to remove said tile to continue tiling , it didn't want to come up , it was well bonded to the screed and that was done with a cement based adhesive .
 

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What primer and adhesive - underfloor calcium sulphate
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Tile Adhesive and Grout Advice
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