Mapei Keraquick won't set?

[Futuregrout]

Thanks both. I agree it is not ideal by any means, but I'm just trying to make the best of it so I can finish off the floor and sell the house. I get the feeling you guys think I'm doing it wrong... would I be better getting a leveling compound instead, rather than trying to stick down a backerboard?

The kitchen bit is actually the smaller of the tiling jobs I need to do today. I've also got about 4m2 to do in another room (where substrate is no problem), and I was hoping to use my Keraquick to do that. The stuff is supposed to go off in a few minutes so rather than asking you lot to work out whether it is knackered, I'll just do a small test here instead.

 

[DHTiling]

All we can do is advise how it should be done and not a quick fix.. if you use say marmox board, you might be ok but we cannot see how / if any deflection is there..

The main point is that timber expands at a different rate to the screed side, so this creates a point of stress.. this can transfer to the tile above and crack at that point..

You are selling the property , so it is your choice if you wish to finish it to sell and look good for now.

hope the advice helps.

 

[Futuregrout]

Thanks, David. As you say, I'm selling so I don't want to spend a fortune here which is why I was hoping to do it with the stuff I already had in the shed. On the other hand, I hate the idea of doing a bad job and leaving someone else with a problem to fix in 12 months time. The board I was using was aquapanel 12,5mm.

The floorboard is very solid, but I can't pretend I've done any proper test for deflection.

The easiest option is just to tile to the end of the existing backerboard. It will mean a half-tile on the entrance to the kitchen which will look a bit crap, but at least it will be solid - I might just do that.

 

[Peter]

Heard quite a few stories about Keraquick and Latex Plus taking a very long time to set. Worst one was 18 hours, and when the rep came out a few days later it had set and he said there was no problem with it.