Pending disaster?

[zzr-matt]

mmm whats the best way of removing the adhesive from the wall? It really has bonded well to that!

You can get them off by getting a screw driver under a corner and gently twisting it, pop and its off. Got about a 20% breakage rate so far....

 

[zzr-matt]

Just been to try the single tile that I put up as a temporary splashback behind the basin downstairs... Thew it up a while back with some cheap unibond tubbed stuff that was in the garage...

That damn thing is completely bonded to the wall, snapped a corner off and some plaster trying to remove it. I can only assume I mixed the keraflex wrong🙁

 

[DHTiling]

If they are coming of that easy then YES!! take them off....scrape ony loose and high bits of adhesive off.. prime.. and then just tile over it...make sure the adhesive isnt to dry as this will make poor contact...good luck...

 

[zzr-matt]

I think I will try and get them all off tomorrow, count up the breakages and have a look at getting the adhesive off / priming it then I'll just try and find someone to do the job for me!

I'm just worried I'm going to do it again and be in the same situation 🙁

 

[Dan]

Is it just cement based adhesives that need to be left for a period of tie before the adhesive is fully cured?

I'm thinking as the pattern is in the adhesive so neatly the tiles have been pushed into it enough.

That to me looks like the tile has been stuck, the adhesive has 'dried' but it hasn't built up strength yet.

 

[DHTiling]

This usually takes 3/4 days to happen and with him saying they had been up a few days i didn't think this was the problem...but that is an option as well dan....but looks like he wants to take them off anyway....

 

[Matthew77]

I just recently completed two walls of a kitchen in 300 by 600 B&Q tiles. At the end of the day i was chatting to the lady i was working for and a tile from the top row fell off the wall(bad timing).
On inspection the tile was like yours totally clean on the back of addy although you could see the tile had left a good imprint in the addy on the wall. Now when i was laying these tiles i noticed they had a bfew mm of chalky stuff vertically along two edges (I guess to stop them scratching in transit) this stuff had rubbed off in transit i think and coated the tiles in a thin film of fine dust!
Luckely i'd been chiseling off the exess powder strips as i went & wiping the tiles with a damp cloth. I'd obviously missed a few.
So far all the rest have stayed on the wall, I have to go back in the new year to fix some shelfs to the tiled wall, I think i'll find out then if they are all fixed well?
From now on Any tiles with these strips are going to get a proper washing from me, i'd never seen this before on tiles.

 

[zzr-matt]

Is it just cement based adhesives that need to be left for a period of tie before the adhesive is fully cured?

I'm thinking as the pattern is in the adhesive so neatly the tiles have been pushed into it enough.

That to me looks like the tile has been stuck, the adhesive has 'dried' but it hasn't built up strength yet.

So before I let loose with the club hammer is it worth waiting longer. How long are we talking? Some have been on around a week!

 

[zzr-matt]

It would appear the ones that got put up around 2 weeks ago are bonded like sticky stuff to a blanket...

Its just the ones that are onto the surface that has been tanked and bare ply wood (as instructed by mapei technical) that can be popped off at the moment. The ones that are onto Primer G coated plaster dont seem to want to budge...

Is it worth waiting a couple of weeks with the ones on the tanked backing to see if its because the moisture can only come out of the adhesive by soaking into the tile not the backing as well? Or are there a big bunch of straws that I'm clutching at?

 

[wayne]

i would leave them a bit longer just to make sure. it does this a lot of times i have found.coverage is fine then day after pop a tile and there is none on the back of the tile. must be something to do with the moisture and the biscuit of the tile