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Old 03-06-2018, 09:32 AM   #1
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Bathroom Tiling - unglazed porcelain tiles

Hello - what a wonderful resource! Seeking some expert advice...sorry in advance for the many questions but I just want to make sure I do this right (only other tiling experience was last summer with large format porcelain tiles in the entryway).

I am installing 2" x 2" hexagonal porcelain tiles (unglazed) over DITRA in a bathroom (floor inside and outside the shower).
1. When you're grouting rectangular or square tiles, you pull the grout float diagonally across the tile...which direction do you run the grout float for a six sided tile??
2. Should I seal the top of the unglazed tiles? The tile showroom sales person said no, but the tile person at the big box orange store said yes. The tile is a darker gray...
3. Related question - whether or not I seal the unglazed tiles, should I put down grout release? And if so, how bad is it if grout release gets into the joint lines? I am trying to understand if I need to meticulously hit the top of every tile with something small and precise (toothbrush?) or if I can "mop" the whole floor with grout release.
4. Should the grout on the floor match the grout on the shower walls?

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Old 03-06-2018, 09:45 AM   #2
John Bridge
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Hi JF,

I don't pre-seal unglazed porcelain tiles, but some do.

Grout release should not go into the joints.

Experiment with the float direction.
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