Tile Is Not Bonding To Mortar, Laticrete Says Sounds Like Something With The Tile - Tiling, ceramics, marble - DIY Chatroom Home Improvement Forum


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Old 08-21-2012, 07:48 PM   #1
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Tile is not bonding to mortar, laticrete says sounds like something with the tile


I found a loos tile and popped it off. chipping off the mortar on the wall made another fall of, then tapping found more that did not sound right. I have taken off 15 or so and they come off real easy and have not mortar on them or very little.

Laticrete says is sounds like something with the tile is not letting it bond.

I back buttered some of these and the mortar bonded to each other but not the tile.

also after starting the project I learned some tiles have a coating. There was nothing indicating these were like that but since I had a wire brush and some water, some of the rest I brushed and some rinsed and some both, and some nothing. The tiles that were cleaned seem to be doing the same as the rest.

The mortar is hard and secure to the wall. please understand the tiles stuck and seemed secure. It was at least three days before I went to grout them and found this issue.

Tiles came from Lowes manufactured by floorim.

Any thoughts on this?

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Old 08-21-2012, 07:56 PM   #2
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Tile is not bonding to mortar, laticrete says sounds like something with the tile


Bad news----Porcelain tiles often need "back buttering" of the tile---

Temperature--type of mortar --and open spread time---and bucket life of the mix all can cause this---sorry to hear this---

At one time or another this sad event has happened to everyone who has set a lot of tile-- I shouldn't speak for others,but I'll bet I'm right.---Mike---

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Old 08-21-2012, 08:28 PM   #3
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Tile is not bonding to mortar, laticrete says sounds like something with the tile


I'd say your right mike, although mortar mixed to wet or to dry as well could cause this as well.
If you BB one tile you need to BB all tiles.

What size tiles?....

I'd say your right mike, although mortar mixed to wet or to dry as well could cause this as well.
If you BB one tile you need to BB all tiles.

What size tiles?....

Take a pic or 2 of what you have on wall and tile.
I'm shore some one can tell you if there is something wrong with the back of the tile it's self?

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Old 08-21-2012, 08:41 PM   #4
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Tile is not bonding to mortar, laticrete says sounds like something with the tile


I've also had issues with 'cuts' that were installed when still wet from the wet saw.
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Old 08-21-2012, 10:32 PM   #5
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Tile is not bonding to mortar, laticrete says sounds like something with the tile


Thanks for guys.

12 inch tiles.

I back buttered some I think was for thickness. but that did not bond to the tile it just bonded to the mortar on the wall.

This is my first tile job but I feel certain it was not too wet, dry is a possiblility I guess but that seems like it would have given some warning signs. Maybe not. Just how would I know if iti is too dry?

I mixed small batches in a one gallon bucket, whole bucket and half a bucket depending. and used immediatly after the cook time and remix.

room temp was 75-80 humidity probably not real high but dont know, and often the air conditioner was on.

Ok temp and humidity certain play in mortar adhesion but if that was the effect here I would think nobody would use it because it is too sensitive. Some times sensitivity is good and nice but when someone is too sensitive people get tired of being around them,

The mortar was/is laticrete multipurpose fortified.
i will take a picture but prob tomorrow, I am bummed by this.

Even with wet dry hot and humid would there not be some tells at install and shouldnt some adhere to the tile???
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Old 08-22-2012, 12:32 AM   #6
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Tile is not bonding to mortar, laticrete says sounds like something with the tile


Never seen mortar that won't bond to the backs of tiles. How did you apply it? What was the consistency of the mortar?

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Old 08-22-2012, 01:01 AM   #7
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Tile is not bonding to mortar, laticrete says sounds like something with the tile


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Never seen mortar that won't bond to the backs of tiles. How did you apply it? What was the consistency of the mortar?

Jaz
creamy? peanut buttery. just enough so it seemed sticky to itself and not sloppy. hows that?
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Old 08-22-2012, 01:16 AM   #8
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Tile is not bonding to mortar, laticrete says sounds like something with the tile


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creamy? peanut buttery. just enough so it seemed sticky to itself and not sloppy. hows that?
Huh? Sure sounds ok. Did you apply to the backs with the flat side of the trowel and apply pressure?

OK, so you mixed small batches. You poured cold water in a clean bucket and added the powder, mixed how for how long? Then you let it slake for 10 minutes? Then remixed?

The most likely reason might be that the mortar skinned-over before the tiles were set. Too thick to start, work too slow, hot weather, wind or sun, not enough mortar. What size trowel? What did you put the tiles over? Concrete backer, what brand?

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Old 08-22-2012, 01:27 AM   #9
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Tile is not bonding to mortar, laticrete says sounds like something with the tile


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Never seen mortar that won't bond to the backs of tiles. How did you apply it? What was the consistency of the mortar?

Jaz
Not sure what you want. backer board red gaurd 1/4 trowel.
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Old 08-22-2012, 10:13 AM   #10
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Tile is not bonding to mortar, laticrete says sounds like something with the tile


OK, I asked the brand of concrete backer you used. Also 1/4x1/4x1/4 is too small for 12x12 tiles. But, you said the mortar didn't stick to the tiles even when you back-buttered. That is what I don't get, hard to believe.

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Old 08-22-2012, 11:07 AM   #11
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Tile is not bonding to mortar, laticrete says sounds like something with the tile


Maybe used V notched trowel?....
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Old 08-22-2012, 02:35 PM   #12
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Tile is not bonding to mortar, laticrete says sounds like something with the tile


Hardi backer and square trowel

Pics in couple hours
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Old 08-22-2012, 02:41 PM   #13
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Tile is not bonding to mortar, laticrete says sounds like something with the tile


Could it be too dry if it stuck to walk so well?
If my mix or description was a bit dry it must have close, right? And then had much more stick to tile?
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Old 08-22-2012, 03:40 PM   #14
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Tile is not bonding to mortar, laticrete says sounds like something with the tile


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Could it be too dry if it stuck to walk so well?
If my mix or description was a bit dry it must have close, right? And then had much more stick to tile?
Please repeat in English.

And BTW, many people have trouble with Hardie cuz it is very thirsty, it sucks the moisture out of the adhesive. You were supposed to sponge or mist just before spreading the mortar. Sounds like you may have missed that part? But then I return that you said you also applied Redgard, (how many coats?), and mortar not sticking to tiles either. Me confussed.

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Old 08-22-2012, 05:10 PM   #15
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Tile is not bonding to mortar, laticrete says sounds like something with the tile


Maybe red guard wasn't dry when started troweling?....

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