Grout Kerapoxy Cq - Tile Advice

[Paul72]

yeah, think I'm gonna go with the kerapoxy. Would you use the kerapoxy around the drain also? Thanks for your help.

 

[macten]

I've only done a couple of wet rooms and I've always siliconed around the drain. I would give Mapei a buzz and see what they recommend.

 

[One Day]

You shouldn't silicone around the drain! Water needs to get away under the drain - assuming it's a decent design drain with allowance for sub-tile drainage that is.

When installing a wet tray you should always prep it as if water WILL be sloshing around under the tiles.
Do that, it will last forever.

Trying to keep water out, coupled with poor drains - with no weep holes etc - and you could very likely see failures. Maybe not for several years - maybe sooner....

 

[One Day]

Many peeps silicone around drains after having seen grout crack and fail at that point.

Two reasons it fails at the drain -
One is movement around the drain from improper installation i.e. no support or poor support around the drain.
The other is simply cheap, nasty trays with poor drains.

 

[Paul72]

Thanks impish....the trays are AKW tuff form with the square grille waste and AKW tri form with the linear waste.

I'm going to use mapei kerapoxy cq grout. So should I just grout around the waste as normal?

 

[Qwerty]

Check with the former & tanking membrane manufacturer if epoxy is suitable with their products. Some aren't!

 

[Paul72]

Check with the former & tanking membrane manufacturer if epoxy is suitable with their products. Some aren't!

Thanks for the advice. I've just called mapei as I used mapei tanking and they said in reality the kerapoxy shouldn't come in to contact with the tanking as there's a bed of adhesive, but even if it did it wouldn't cause any reactions.