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Old 09-29-2008, 03:49 PM   #1
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Concrete prep: how to remove old adhesive/grout etc from ceramic tile?


putting in some laminate wood flooring to replace the carpet on the first floor. Had a small 5'x4' area of tile right by the main entrance which I removed earlier today, but there's still a residue on the concrete underneath. What's the best way to remove this? I've got a scraper with a 4" blade, but it will take me days at the rate I was going.

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Old 09-30-2008, 03:10 PM   #2
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Concrete prep: how to remove old adhesive/grout etc from ceramic tile?


For a 200 square foot area, I used a demolition hammer with a tile scraper bit rented from home depot. It took me 5 hours. It seems to help if you wet down the thinset first.

For an area that small, an air hammer with a chisel bit would probably work fine. Or an electric rotary hammer with a chisel bit if you don't have a compressor. Or an angle grinder. Or a hammer and a chisel and some patience.

Good Luck,

Sam

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Old 09-30-2008, 08:35 PM   #3
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Concrete prep: how to remove old adhesive/grout etc from ceramic tile?


You can use a rotary grinder, but it will fill your house with dust everywhere..I would try a chisel.
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Old 10-01-2008, 07:58 AM   #4
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Concrete prep: how to remove old adhesive/grout etc from ceramic tile?


may be too late to help but the orange apron store rents a sawtec grinder w/dust shroud which hooks up to your wet/dry vac,,, IF you can read this thru all the dust that's in your house we use dustmuzzles on all ours - dustless technologies [ no financial interest ]
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Old 10-01-2008, 09:20 PM   #5
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Concrete prep: how to remove old adhesive/grout etc from ceramic tile?


I used the floor grinder from Home Depot (rental) and it works great for taking down the high spots on the slab. However, even with the vacuum attachment, it will still fill your home with a very fine dust, which gets into everything.
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Old 10-01-2008, 09:53 PM   #6
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Concrete prep: how to remove old adhesive/grout etc from ceramic tile?


thanks for all the advice! I ended up using an electric hammer with a flex chisel, rented from HD. with the front door open and a fan behind me, I was able to keep the amount of dust to a minimum, but there's still a fine coat that will need to be mopped/wiped up. I'll post an after picture shortly

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