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Unread 05-25-2008, 07:21 PM   #1
BrianL
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Thinset differences

Hello all,

Just set a 18" porcelin tile floor, using white Versabond thinset. Halfway through, ran out but had 1/2 bag of white Megabond thinset. All went well, the next day was cleaning up the grout spaces preparing to lay grout, and noticed a big difference in strength. The Versabond was very hard, almost too hard to clean out any extra bits in the grout space while the Megabond grumbled quite easily.

Both were fresh bags, bit mixed according to directions. Layed on 1/4" Hardi, lightly misted with water prior to laying tile.

Any thoughts? Am I OK to continue?

Thanks,

--Brian
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Unread 05-25-2008, 08:03 PM   #2
Ken
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Did you mix the Megabond with the admix instead of water?

LATICRETE Mega Bond must be fortified with LATICRETE Mega Bond Additive for exterior use, impervious tiles, porcelain, mosaic, glass and stone tiles, heavy traffic areas, exterior glue plywood, and cement backer boards.

Versabond out of the bag is a modified thinset, megabond is not without using the LATICRETE Megabond Additive. This is why you're noticing the difference in strengths.
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Unread 05-26-2008, 04:43 AM   #3
BrianL
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Aaaarrrrghhhhh! Nope, used water for both. Now what? Tear up the second half? Just for giggles I tried to pry up one of the tiles, and it is seated very firmly. No dull sounds when tapping on the tile.

It is a bathroom, so lots of use, but not what I would call heavy traffic!

Thanks for the advice.

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Unread 05-26-2008, 04:56 AM   #4
kerdibird
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Leave it be
You should be ok if they don't sound hollow.
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Unread 05-26-2008, 10:06 AM   #5
ceramictec
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yeah Brian, you'll be fine.

don't let him scare you with technical data he posted about a thinset with Additive in it.

the Megabond is a good unmodified thinset and will hold your Porcelain tile.
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Unread 05-26-2008, 06:05 PM   #6
BrianL
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Awesome, thanks all for the advice.

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