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Old 06-26-2011, 07:33 PM
 
4,246 posts, read 12,026,260 times
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Best solution and tools for this. I'm getting the concrete ready for tile.

Paint thinner and a scraper?
Dawn soap and a scraper?

Does the concrete have to be completely free of everything or can a little paint be on the concrete close to the baseboards?
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Old 06-26-2011, 10:03 PM
 
Location: Jacksonville, FL
11,143 posts, read 10,711,121 times
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A low volatility stripper like citristrip gel and a scraper would be best for indoors. Get as much paint off as you can, but a few spots won't make much difference. The most important factor is making sure the surface is smooth, with no dips or hills.
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Old 06-27-2011, 09:22 AM
 
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Being that it is in your house, you're not really suppose to use a chemical on the concrete to get debri off. You might have to rent an air impact gun to chizel. It works faster and it's easier than a hand scrapper. A scrapper works good for some areas but not for the whole floor. The paint near the baseboards in no big deal.
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Old 06-27-2011, 09:28 AM
 
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In the small area I'm doing right now there is a high spot. But I can't use a self leveling product because the tile is so thick that it'll be higher than the existing tile when I go to join the two.

So what works best sanding down the high spots? Grinder or belt sander? I'm going to go buy some plastic to tape off the area I'm working to minimize the dust from going throughout the house.

Can you not just use a bit more mortar to level out the tile then slowly over the course of the tiles level it off so that they're even but slowly rise then go down?
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Old 06-27-2011, 11:20 AM
 
Location: Alaska
5,356 posts, read 18,544,358 times
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I'd use an angle grinder with a diamond wheel to grind down the high spots. Be prepared for a lot of dust and wear eye and breathing protection. If you like some expert advice from professional tilers, check out the forums at JohnBridge.com. It's the go to place for DIYers who want advice with their tiling projects.
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Old 06-27-2011, 03:02 PM
 
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I'm seriously thinking about just letting someone else do it. I'm going to pull up about 150 more sqft of carpet and if there's a lot more uneven concrete then I'll hire someone to to install all of it.
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Old 06-27-2011, 03:16 PM
 
Location: Jacksonville, FL
11,143 posts, read 10,711,121 times
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Quote:
Originally Posted by danieloneil01 View Post
I'm seriously thinking about just letting someone else do it. I'm going to pull up about 150 more sqft of carpet and if there's a lot more uneven concrete then I'll hire someone to to install all of it.
In the long run you'll be better off. Hire a good professional, check references, all that good stuff, and you'll end up happier with the finished product.
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Old 06-27-2011, 04:43 PM
 
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Yup, I'm hiring someone to do it. I'll upload some pics later but there's a few more uneven spots but they're really close to the wall and my existing tile. UGH!
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Old 06-27-2011, 06:53 PM
 
4,246 posts, read 12,026,260 times
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Here's the latest ones. First 2 pics are of the same spot but up close to see the level. The 3rd pic is the same area but with a tile.






Different spot but all pics are of this spot with leveler on it.







New tile without any mortar is same height as existing tile.



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Old 06-30-2011, 09:32 AM
 
Location: New York
37 posts, read 86,922 times
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depends how smooth the concrete is.. if its really really smooth you may have to sand and roughen it up first so thinset will adhese.
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