Pre mixed adhesive for floor tiles replacement

[ElCI]

Hi all

My bathroom has a few cracked tiles that "rock" when being walked on and are loosening adjacent tiles.with my grand total of zero tiling experience in going to remove these damaged and loose tiles and replace them with some spares the previous owners helpfully left.

I always find mixing and sorting it stuff like this difficult to get right but also know from all my skimming repairs that pre mixed stuff is generally useless.

I seen a pre mixed floor tile adhesive in b&q (can't remember the name) and thought about trying it but thought I'd check here for any comments first. It's literally maybe 4 times I'll be replacing so a very small job. I'm happy for it to be less than perfect. Is there any specific adhesive and grout I should be using?
Any general help or advice would be much appreciated.

 

[aveatry]

Bathroom suggests going on to wood so use flexible adhesive would be my houghts.

 

[simplesteve]

Do NOT use premixed adhesive for a floor;
Premix adhesive is air cured, that’s why there’s a tight lid on the bucket- the stuff in there will never go hard. Now when you tile a floor, with a nice big ( minimum) 10mm notch trowel, and maybe ‘back butter’ the tile first, once you have fixed it into place, and you have 100% coverage of tile with cement, there will be very little air in there. That adhesive could take weeks to set ( if it ever does)
Powdered cementous adhesive dries by chemical process - as soon as you put some water into it, it starts reacting, it gets warm, and starts to set as the water disappears. This is what you want your thick bed of floor adhesive to be doing.

There is no need to get a ‘rapid set’ adhesive as a newbie just patching, just get a standard setting FLEXIBLE adhesive. That takes the time pressure and stress off you
Groutwise, any flexible grout will do. Just check that its suitable for the spacer size ( between tiles) that you have :- different types do different widths.

 

[aveatry]

Do NOT use premixed adhesive for a floor;
Premix adhesive is air cured, that’s why there’s a tight lid on the bucket- the stuff in there will never go hard. Now when you tile a floor, with a nice big ( minimum) 10mm notch trowel, and maybe ‘back butter’ the tile first, once you have fixed it into place, and you have 100% coverage of tile with cement, there will be very little air in there. That adhesive could take weeks to set ( if it ever does)
Powdered cementous adhesive dries by chemical process - as soon as you put some water into it, it starts reacting, it gets warm, and starts to set as the water disappears. This is what you want your thick bed of floor adhesive to be doing.

There is no need to get a ‘rapid set’ adhesive as a newbie just patching, just get a standard setting FLEXIBLE adhesive. That takes the time pressure and stress off you
Groutwise, any flexible grout will do. Just check that its suitable for the spacer size ( between tiles) that you have :- different types do different widths.

Good point on the air setting. I think the problem is getting the smallest amount of powdered cementous adhesive for just a couple of tiles.