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@Neat Hat wrote:

@fightclub30 wrote:

@Neat Hat wrote:

@Bertogliat wrote:

My dad is a tile guy. Corners always crack. Always caulk the corners (and the edge of the tile).

When you say caulk the corners, you mean instead of using grout, caulk them instead? I have cracked corners in my other bathroom, and trying to avoid that this time, and already was considering just caulking them.

Also, one of the 3 batches of concrete I made didn’t set, and it has been way too long for it not to have. Not sure what happened, as I was very careful to get the ratio right and did the exact same process on all 3 batches. All were the same, but one didn’t go right. I put a fan on it for the day, hopefully that works, or I’ll have a big mess on my hands. It just needs to be solid and level so I can tile!

Any change of plane should be caulked instead of grouted, and I would recommend 100% silicone in a wet environment, all day, every day, and twice on sundays.

Actually it just needs to be flat, the Tile won’t care if its level or not… :biggrin2:

I am assuming you are talking about fat mud for a shower pan when you say the concrete hasn’t set. Did you check for the batch/lot date on the bag of concrete? Sometimes buying product from a big box store I’d have bags of really old stuff get mixed in with relatively new stuff. At Menards once I had a bag of thinset that was over a year old in between 2 bags that were less than 2 months old. If it is a fairly old mix, that could effect its ability to set up properly.

Not that this would affect its ability to set, but does it have the proper pre-slope in the pan liner underneath? Otherwise if there is excess water in there it will just sit…

No, the concrete is a self leveling concrete that I’m using to encase my in-floor heating elements, and level out the floor before tiling. It is just about 1/4 inch thick across the whole bathroom floor, to provide a good surface to tile. I didn’t check the date on the bags, but I bought them at Menards, so that definitely could be the case.

Thanks for the advice on the silicon in the shower, I will definitely go that route.

Self-leveler can be finicky. A little thicker than 1/4 and it doesn’t dry quick. Water temp changes it too. You should be fine with a fan and waiting a bit longer.

When I used my Schluter stuff in mine, I struggled (in my mind) using an un-modified thin set as required because it is more brittle than the modified I use for floors, but from what I read, the modified would never cure with the Schluter because no where for moisture to go.

I learned a ton and am proud that I did it all myself, but it was such a pain in the ass, especially only working on it in the evenings.