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Unread 11-18-2019, 07:25 AM   #1
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dried mortar in grout lines

Hi there-
I have taken on a rather big job of laying 1000 sq. for 7x20 wood floor tile- I am breaking the job down in 4 sectors which I divided. I have started and looks okay but I do have a question about how to get dried mortar out of some of the grout lines- It is not everywhere but there it seems to be a lot. I have seemed handheld grout sander saws that could work but was hoping for other options. I have tried to get most of the cement out before dried but the spacer leakage system(Raimondi Tile Leveling System) I am using prevent me from getting everything- Also what is the best way to get mortar haze up after everything has dried too- Thanks for the help!!
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Unread 11-18-2019, 09:43 AM   #2
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Welcome to the forum, Andrew.

Of course the best time to clean mortar is when the tile set. Second best time would be the next day.

After that it gets more difficult to clean. On a durable porcelain tile, a utility knife would work. Some spots can be cleaned with a sponge and warm water. A scrub pad or micro fiber sponge may also be helpful.

Start with the lighter methods first, then graduate to the more aggressive methods.

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Unread 11-18-2019, 11:21 AM   #3
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what is the substrate under the tile? if there is no waterproofing to compromise, I like using a multi-tool with a carbide/diamond grit grinder.

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Unread 11-18-2019, 12:31 PM   #4
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I used my Dremel tool with a diamond bit... but I like Mike's suggestion better.
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Unread 11-22-2019, 08:23 PM   #5
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Originally Posted by Kman
Of course the best time to clean mortar is when the tile set.
I find that an old, floppy grout sponge gets into and cleans the grout joints a little easier than a firmer sponge.

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Unread 11-23-2019, 08:26 AM   #6
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Yep, what the others said. I like an old sponge that's too worn out for grouting. Anything after that needs to be done the next day with a utility knife or tools that were mentioned.

Before you start setting for the day, get the tile you already have set cleaned, tabs out of the way, joints cleaned up, etc.

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Unread 11-23-2019, 10:15 AM   #7
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I always keep a Denture Brush in my water bucket (it floats) and clean as I go. It has two brushes on it and the long, narrow ones are ideal for cleaning wet pooky.....


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Unread 11-23-2019, 11:34 AM   #8
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I buy a cheap synthetic 1" paint brush and trim the bristles about half way. Also keep it in the water bucket.
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