Tiles - cavities underneath?

[Rolle85]

I have two tiles in the hallway that you can hear are a bit loose and it sounds like there's a void underneath. I would like to fix this and saw that there is an adhesive called "fix a floor" where you simply drill holes in the grout and then inject the adhesive that penetrates the void:

https://www.youtube.com/watch?v=tDApbyBZVFI

Does anyone know where you can buy this in Sweden or something similar? I checked on eBay, but the sellers only ship within the UK =/

 

[Lasson83]

Have the same problem in the kitchen with 1 hotplate, insanely annoying so got something like what you linked seems awesome👍

 

[Rolle85]

mm looking for a way to get hold of something

 

[para]

Does it even matter what kind of glue it is? Use anything that spreads out fairly easily. The hard part is probably getting the glue to reach the cavity. There might be fix around the entire hollow space.

 

[Lasson83]

Find something called LATICRETE Injection Adhesive for that purpose but no store that sells it :-0 http://www.laticrete.se/products.aspx?pid=5

 

[Rolle85]

no can't buy..

 

[Rolle85]

feels like a good product but that no one is selling is crazy..

 

[Lars48]

Works well with regular fogskum too.

 

[Rolle85]

but the fast polyurethane foam doesn't run down under the slab. Does this work??

 

[Jörgen Ö]

IF the tiles are a bit loose, isn't it better to remove them completely and start over from there!? Trying to fill up any empty space under the tiles seems like overkill in relation to the problem. I don't think it's easier in any way, as mentioned, if you remove the tiles instead, you might also find out why they are loose/hollow.

 

[Rolle85]

It's rather overkill to remove the entire tile than to drill a hole in the joint and refill it, isn't it? Especially if you don't have new tiles to replace them with in case you happen to crack the tile, which is a big chance you might do.

 

[f91jsw]

If it is loose, you can just lift it. Insert something sharp at the edge and pry it up. Possibly scrape away some grout first.

 

[Autodidak1]

If you only "hear" that they are loose, the fix usually has been too dry and hasn't adhered to the tile (formed too much skin). But the tiles might still be firmly attached. If you want to try lifting them, you should start by completely removing the grout (carefully without damaging the tiles). And then lift the tile. But I wouldn't do it unless I had spare tiles...

And if you have them, you can just break the tile that is "loose".

 

[Jörgen Ö]

It's more of an advanced technique to remove the entire tile than to drill a hole in the grout and refill? Especially if you don't have new tiles to replace it with if you happen to crack the tile which is a big risk.

That's why I wrote IF the tiles are loose......then it's better to pick them up. Successfully filling any void under the tiles is not as simple as it sounds, as someone above wrote, it requires that there is not, for example, mortar around the tile and that the hollow space is in the middle. Then you can drill as many holes as you want to no avail....you'll never get anything into the void.... If you know what it usually looks like under a tile, you understand the problem. And it seems like you can't get hold of the miracle solution either.....

 

[Lars48]

but the foam sealant doesn't run under the slab. Does this work??

It fills the void with pressure. It becomes better than glue. It has worked well for me, both slabs and parquet that make noise. Make it tight around the hole and fill it up properly. It works well.