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Old 08-03-2014, 12:06 PM   #1
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Too Thick for Thinset


I have to put down about 12 tiles that will match the tiles in the existing area. Problem is that whoever laid the original tile must have put a thick base down because when I put the thinset down the tile was not level and needed more height. I do remember in the past when I put a thick layer of thinset down it never really dried. Is there anything else I can put down as thick base for the tile? Thanks?
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Old 08-03-2014, 04:43 PM   #2
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Originally Posted by Mstrlucky74 View Post
I have to put down about 12 tiles that will match the tiles in the existing area. Problem is that whoever laid the original tile must have put a thick base down because when I put the thinset down the tile was not level and needed more height. I do remember in the past when I put a thick layer of thinset down it never really dried. Is there anything else I can put down as thick base for the tile? Thanks?
No. Use thinset. May have to mix it a little tighter.
What do you mean "it never really dried"?
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Old 08-03-2014, 05:22 PM   #3
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Sounds like you may have a mud bed under the tiles. How thick is the base, what's under it and what's the difference in thickness from the rest? Got pics?

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Old 08-03-2014, 08:17 PM   #4
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No. Use thinset. May have to mix it a little tighter.
What do you mean "it never really dried"?
I bought the premixed.
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Old 08-03-2014, 08:18 PM   #5
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Sounds like you may have a mud bed under the tiles. How thick is the base, what's under it and what's the difference in thickness from the rest? Got pics?

Jaz
Not sure what's under it. I'm about 1/2" short when thinset is applied
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Old 08-03-2014, 10:41 PM   #6
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I bought the premixed.
That's is one of the worst products to ever hit the market, you are correct, when applied in thick fashion it will never dry/cure. Never use a pre-mixed thinset for anything other than installing tile on drywall totally away from a wet area and never use it to fill anything. The pre-mixed thinset is crap and has its limits.
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Old 08-03-2014, 10:44 PM   #7
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Not sure what's under it. I'm about 1/2" short when thinset is applied
Not following this either. How could there be a 1/2" shortage if all you did was remove some tile and you are now trying to simply replace it?
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Old 08-03-2014, 11:08 PM   #8
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Quote:
Not sure what's under it.
.....and why not? Let's start with simple. Is it concrete or wooden floor?

I'm pretty sure you have a layer of mud under there. The pre-mixed stuff is not thinset and as Bud said it's junk for floors and wet areas. But please answer the q's.

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Old 08-04-2014, 03:53 AM   #9
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Not sure what's under it. I'm about 1/2" short when thinset is applied
What do you mean you're not sure what's under it. What do you see there?

As everyone else has pointed out, the premixed isn't useful. Basically it's glue, and it won't dry out. To build up you will need either to add a layer with concrete board or the like, or build up with a mortar that will allow you to build a medium bed. A problem that you're going to have is that the underlayment beneath the new section will be different from that below the old, and the border will want to crack.

The more questions you answer, the more helpful will be the answers.
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