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Old 12-15-2008, 08:10 PM   #1
thefed17
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Difference between Laticrete Multipurpose & Laticrete Spectraset?

The only difference I see based on the bags is that Spectraset is a "premium' modified mortar....and it cost $28 a bag vs. $12.


I'm using this on floor over hardibacker, 12x12 porcelain. I've seen the comment that Spectraset works well on porcelain....why so?
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Old 12-15-2008, 08:27 PM   #2
Brian in San Diego
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Jason,

Because of the additives added to the mortar that give it better adhesion qualities.

Brian
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Old 12-15-2008, 08:43 PM   #3
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Looking at the data sheets, there isn't much difference in their uses. The Spectraset has a stronger shear strength on porcelain. 340-370 psi to 250-300psi for the Multipurpose.

The Latacrete ad to the right has all that info.
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Old 12-15-2008, 08:48 PM   #4
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and the shear strength would mean.....

???
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Old 12-15-2008, 08:55 PM   #5
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Shear strengh would be in plane movement in relation to the substrate. I would use the higher modified with the porcelin, which is known to have problematic bonding issues.
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