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Old 01-19-2013, 05:26 PM   #31
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Bathroom tile grout repair


Tile is set or installed either on a morter bed /concrete board such as wonder board or placed on plywood drywall or whatever this is listed in descending quality of install. 9 times out of 10 if the tile is surface bull nose it is not on a morter radius bull nose usually is. This is determined by looking at the edge pieces Surface has a small 1/8 curve and radius has about a 3/8 /1/2 curve. Use this guide to determine how2 bad the quality was or wasn't for starters Tile with a poor substrate around water will not last

Use non sanded grout if your spaces ore 1/8 or less use sanded if not
Regardless where the wall and deck change direction 90 degrees use flex calk in a tube. When done 3 days latter seal the grout with a good grout sealer

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Old 01-19-2013, 05:32 PM   #32
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Bathroom tile grout repair


Thanks...but that doesn't really answer my most recent question. The work is all done and its been 3 days so I'm at the sealing stage.
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Old 01-19-2013, 05:58 PM   #33
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Bathroom tile grout repair


The sealer can flush out some loose surface material--so a little dust on your finger is not a sign of failure---wait a day or two and wash the surface one more time to clean off and residue--
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Old 01-19-2013, 10:15 PM   #34
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Bathroom tile grout repair


Ok thanks - ill wait until tomorrow afternoon and give it a final sponge down. The bottle said 2-3 hours which is why I was questioning it. Even now over double the time the bottle has listed the grout still had a powderish feel to it. I expected it to feel more smooth almost like harden caulk.

I'll see what happens tomorrow. Maybe I spread it too thin or something, but I made sure all the grout was wet looking...twice.
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Old 01-20-2013, 06:38 AM   #35
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Bathroom tile grout repair


Don't expect the sealer to do more than what it is designed to do--

All a sealer does is make the grout less likely to absorb dirt----that's it---

Water will still be able to go through the grout and reach the sub-straight---

Sealer can not water proof the grout.

Good luck--it sure looks better now----Mike-----
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Old 01-20-2013, 08:11 AM   #36
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Bathroom tile grout repair


Thanks for the info mike.

My other bathroom upstairs has the same tile with a dark gray grout. When I try to scuff it with my fingernail it appears to be harden and nothing scrapes off. Was a different coating used to make it do that?

Same goes for my master bathroom with the tub back splash (area that I didn't re-grout) and the shower stall tile which I didn't re-grout either.

Just curious.

Later on this afternoon I'm going to give the floor it's final washing and polishing with a dry towel. I can report back more the .
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Old 01-20-2013, 08:14 AM   #37
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Bathroom tile grout repair


Could be one of many things----

To much water mixed with the grout---

to much water in the sponge when cleaning---

applying sealer before the grout was fully cured---

old stale grout-----

to many reasons to list---

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