Hardiboard over plywood: Liquid Nails or Thinset?

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Old 12-09-14, 07:49 PM
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Hardiboard over plywood: Liquid Nails or Thinset?

I wanted to get everyone's thoughts on what type of adhesive to use over plywood.

This will be for an eating area, not a bathroom, so water is less of a concern. I've heard liquid nails would be acceptable (and I know it would be easier and faster than cement type products.)

Thoughts? Advice?
 
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Old 12-09-14, 09:08 PM
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Not sure who told you that but it's wrong.
You need thin set.
The thin set helps to level out the low areas between the joist.
It needs to be a hard solid non flexing material which any form of Liquid nails is not.
 
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Old 12-09-14, 11:21 PM
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Definitely NOT any Liquid Nails or similar product. Thinset mortar is the only thing I know of that is approved for Hardibacker.
 
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Old 12-10-14, 02:41 AM
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And, of course, use mechanical fasteners.
 
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Old 12-10-14, 07:07 AM
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Thinset,CBU, thinset and then tile.
 
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