What grout for wetroom floors? discuss!

[JMC tiling]

Hi all,

Just wanted to get a feel for what types/make of grouts everyone is using on wetroom floors? I have a done a few wetrooms over the past couple of years and have used Bal micromax and weber without any issues as far as I am aware, however, I have one to do in a few weeks and was wondering if epoxy grout is a better option? never used it before and am aware it can be a more difficult application but have also noticed that it seems it is for grout joints that are over 3mm (mapei kerapoxy specifically), is that correct? Also I understand that it isn't flexible so could be an issue on a timber based floor?

Cheers, John J.M.C Tiling

 

[Italy]

Epoxy Grout on a Heated screed / Under floor heating - http://www.tilersforums.com/threads/epoxy-grout-on-a-heated-screed-under-floor-heating.80995/

 

[Chalker]

Ideally epoxy. But Webber is very cementous, sets very hard and repels water

 

[AndY mac]

This one done on Thursday with grout 3000 natural grey. Grout was still fresh when pictured.

 

[hmtiling]

Ideally epoxy. But Webber is very cementous, sets very hard and repels water

Which weber do you use Chalker? I really didnt get on with the pro joint last time i used it about 5 years ago.

 

[Chalker]

Joint pro.
Cleans off easilly. Like mappai, I use the full bag and exactly the ammount of water specified. When it starts to go off in the bucket, just mix it again.

 

[J Sid]

I use all Ardex grout now for everything....
did my wet room at home 12 years ago with Ardex C2 without add mix on ufh wires and all is fine expect 1 joint where head drips on this joint and has eaten it down about 5mm, so a job to do..
So Ardex tried and tested.

 

[JMC tiling]

Which weber do you use Chalker? I really didnt get on with the pro joint last time i used it about 5 years ago.

So what have you been using on wetroom floors mate?

 

[hmtiling]

I'm probably gonna get shot down for this but i'm not keen on how Grout 3000 sets. It seems soft in comparison to UCP and others.

 

[hmtiling]

So what have you been using on wetroom floors mate?

Used to always be Mapei ucp, then Bal mm2 and now Grout 3000 but am thinking of going back to Mapei

 

[Chalker]

I'm probably gonna get shot down for this but i'm not keen on how Grout 3000 sets. It seems soft in comparison to UCP and others.

I know it's liked a lot on here, but I find it sets too soft.

 

[JMC tiling]

Used to always be Mapei ucp, then Bal mm2 and now Grout 3000 but am thinking of going back to Mapei

So you don't see that epoxy is necessary on these installs? I'm not sure I do really as a lot of the cement grouts mentioned are top quality

 

[hmtiling]

So you don't see that epoxy is necessary on these installs? I'm not sure I do really as a lot of the cement grouts mentioned are top quality

If the tiles are fixed properly i.e. solid bed,then no, i don't think epoxies are necessary.

 

[J Sid]

If the tiles are fixed properly i.e. solid bed,then no, i don't think epoxies are necessary.

as Harry says, no need for you domestic wetroom.

 

[Aston]

the epoxy will have an advantage over the cement based grout because it will resist the build up of bacteria and mold growth.