Tile – White thinset on a light marble tile – tile turned dark – will it lighten

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I tiled my shower niche last night, this is my first step tiling the bathroom, today I'll move on to walls etc. I used white thinset, and some portions of the tile turned dark after installation. I believe they soaked up moisture from the thinset, and theoretically will dry out and lighten up again.

Can anyone confirm? I finished about 8 hours ago and it's still dark so I'm starting to wonder.

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Best Answer

White thinset is always used on light colored marble, you used the right stuff. Give it a few days, it will turn back to the dry color. I see Kerdi around the niche. Are you planning on running Kerdi in the rest of the shower?

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