Ditra & Rapid Set?

[beanz]

Can you lay Ditra with Flexi Rapid???? 😀

 

[DHTiling]

What ever suits the substrate IMO..

 

[John Benton]

I have without any problems

 

[beanz]

I thought it'd be ok, but figured i'd better check.. Floor is screed on top of concrete and suspended floor. Needs SLC too, berfore the Ditra. I only noticed the suspended floor, as there's a crack at the join, hence the Ditra.. ;-)

 

[Dougs Third Go]

I always use rapid set flexi for uncoupling mats.

 

[Alan.P]

I've used glue and flexi rapid, just that with the rapid you have to keep off it til set or you'll break the bond.

 

[beanz]

I've used glue and flexi rapid, just that with the rapid you have to keep off it til set or you'll break the bond.

Ah, that's good to know, cheers Alan 😉

 

[darren pealing]

Re: Ditra & Rapid Set?

same as that alan.

- - - Updated - - -

same as that alan.

 

[beanz]

If I was to use a standard set, could I lay the entire area, then work on it? Ie. setting tiles out, then fixing..

 

[Dougs Third Go]

If I was to use a standard set, could I lay the entire area, then work on it? Ie. setting tiles out, then fixing..

might be a bit troublesome when you want to lift a tile to check coverage as you'll pull the ditra too

 

[Alan.P]

Exactly as Doug says.

 

[beanz]

might be a bit troublesome when you want to lift a tile to check coverage as you'll pull the ditra too

Bugger! Didn't think of that!?! I'll have to go with rapid then, as I need to at least start the tiling tomorrow.. :-/

Cheers Doug 😉

 

[Tony73]

noticed that not all rapid flex adhesives are good for ditra. I think webber is better than mapei keraquick.

 

[beanz]

Is that something you've noticed while working with the different adhesives Tony? Or manufacturers recommendations?
With standard set, would I be able to set out/dry lay while it's going off? Or is there a point that I'd just have to stay off it!?! I've got a feeling I'm gonna be losing a lot of time tomorrow. 🙁

 

[Alan.P]

With standard set, would I be able to set out/dry lay while it's going off? Or is there a point that I'd just have to stay off it!?! I've got a feeling I'm gonna be losing a lot of time tomorrow. 🙁

As a rule of thumb I keep off it until set, never used standard set before but would imagine that walking on it at any point before it's set would not be good.

 

[John Benton]

I fix it and then dependant on size of area I stay off it and leave it till next day before fixing tiles.

 

[beanz]

Ok thanks guys.. What a pain! Maybe I would've been better off using hardie backer for this job, rather than latexing, then waiting for it to dry, and then laying ditra and waiting for that to dry too... Oh we'll, you live and learn lol!

 

[Alan.P]

So, what exactly does the floor consist of now, or then ???

 

[beanz]

SLC'd today. It was screed over concrete and suspended floor.. Cracked on join, and a couple of small cracks elsewhere on the screed.

 

[Dougs Third Go]

SLC'd today. It was screed over concrete and suspended floor.. Cracked on join, and a couple of small cracks elsewhere on the screed.

hardiebacker don't recommend their boards over concrete floors

 

[beanz]

hardiebacker don't recommend their boards over concrete floors

I was thinking about it after I posted, and it wouldn't have solved the de-coupling problem anyway.. Just grasping at straws really, trying to think of a way to do it where I don't lose half a day.. I'm too slow as it is, so losing half a day isn't a good look lol!

 

[Diggy]

I've used both Glue & RS flexi , don't mind either ........ so long as I'm not the bloke knocking up the RS all the time :0). Glues cool for just pouring straight out of the tub , just don't get it on ur hands and work as clean as poss.

Diggy

 

[bugs183]

I've never had any problems with working setting out etc on newly laid Ditra, in fact the Schluter Instruction PDF says you can fix tiles straight onto newly laid Ditra.
I often lay the Ditra then set out and get the tiles in ready to fix the next day.
But as the guys say above, Standard Set adhesive doesn't feel right (fine for fixing tiles to Ditra), so i also use rapid set, but leave overnight, as lifting tiles can lift the matting.

 

[beanz]

Well, the builder im working for didn't supply Ditra, but it looks like the same sort of thing. More green than orange, if that rings any bells with anyone..? Hard work trying to get the matting flat with a trowel. Gave myself a blister and everything!?! lol

 

[Tony73]

durabase? and maby you using wrong tool for matting? :lol:

 

[beanz]

durabase? and maby you using wrong tool for matting? :lol:

Yep, that's the one.. Tell me about it, it looks so much easier on the videos! :lol:

 

[The Legend; Phil Hobson RIP]

I use a special heavy plastic float for Ditra/ Dural to remove any trapped air, you can buy a roller similar to the ones vinyl layers use. I always use rapid set and never walk on it until has gone off, unless I have to, then I use ply to spread the weight.

I have noticed in the past if you walk on the mat whilst adhesive is still soft, it can leave footprints/ indentations, not so bad if you are using large format tiles with deep notched trowel, not so good if you are laying small geometric tiles with a smaller notched trowel.

 

[bugs183]

I'm very light on my feet though, i'm a princess.
Not a fan of Dural if i'm honest, just doesn't feel as good as Ditra.

 

[jonnyc]

I don't like using durabase /dural either. Not as flexible as ditra and can ditra as cheap as dural. I always use a 50kg vinyl roller .
iam same as most who don't like to lay tiles same day,although as bugs says, schluter say you can.

 

[troweler]

Nothing like Ditra imo.

 

[The Legend; Phil Hobson RIP]

I just realised Ditra/Dural should not be used with tiles less than 50mmx50mm. Just so I don't give out wrong info.