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Old 02-11-2006, 07:46 AM   #1
madrabbit2
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Unhappy Mud Vs Thinset

I have an uneven back wall composed of 1/2 hardibacker in my tub/shower enclosure. Bottom to 1/3 is plumb, last 2/3 deviates approx. 1/2" to the top. Can I make a thinset bed over the hardi backer to even out the wall for tiling?
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Old 02-11-2006, 07:50 AM   #2
Scottish Tile and Stone
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Might want to make a batch of mud and square the walls up instead of thinset.
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Old 02-11-2006, 07:51 AM   #3
Tool Guy - Kg
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Hi mudrabbit, welcome to the site.
That's a lot. Can you shim the studs and straighten out the Hardi? That would probably be best.
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Old 02-11-2006, 07:59 AM   #4
madrabbit2
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cannot shim walls

cannot shim walls, hardibacker already installed and jointed. what is the difference between mud and thinset?
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Old 02-11-2006, 08:17 AM   #5
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Hi Rabbit, welcome. I agree with the others, 1/2 inch is too much to be trying to fix with thinset.

Fat mud would be the mud to use but a thin layer of thinset would need to be applied first to bond the mud to the wall. A screed stick or maybe two would need to be embedded in the mud to have something to ride the straight edge on to remove excess mud. This would be tough for someone with no mud experience but not impossible. Pulling the CBU down and fixing the studs might be sounding easier to you.
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Old 02-11-2006, 08:18 AM   #6
madrabbit2
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Unhappy Mud Vs Thinset

What Kind Of Mud Could I Use To Even Out 1/2" Deviation On A Hardibacker Tub Enclosure Wall Or Can I Use Modified Thinset?
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Old 02-11-2006, 08:20 AM   #7
kevjob
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u can use medium bed but it is difficult to smooth out thinset only goes up to 1/4 inch max.
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Old 02-11-2006, 08:26 AM   #8
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You might be better off unscrewing the Hardi and shimming or sistering behind it.
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Old 02-11-2006, 08:31 AM   #9
Davy
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Mr. Rabbit, don't start a new thread for each question. Makes it tough to keep up with.
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Old 02-11-2006, 09:25 AM   #10
Tool Guy - Kg
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I think pulling the cbu down and fixing the studs (shimming/sistering) like Davy suggests may be the path of least resistance in this case.

I merged your threads to keep us from going

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