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Old 01-23-2018, 12:29 AM   #16
Tool Guy - Kg
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Time to attend a Schluter workshop. Not to brainwash you or anything. This is about learning the nuisances of what you’re doing. If you’ve got seams that aren’t holding, it’s time to look at what you’re doing.

Yes, some mortars do more than others and allow you to work, excuse the term...sloppier than others without paying a penalty. But if if you’ve got seams that aren’t holding, it’s the operator that needs to be concentrated on...not just switching to a higher dollar mortar. The workshops are free, fun, and every tile guy that attends learns something. No one excluded. Call your local rep to ask. In the mean time, experiment away. Use different mortars on little mock ups. Let them cure and tear them apart to see their strengths and weaknesses.

Go to an Ardex workshop.
And/or Mapei.
And/or Custom.
And.....


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Old 01-23-2018, 07:19 AM   #17
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Im a 272 guy when it comes to kerdi...Its that or Kerabond T. Schluter Rep in my area has 10 of each of the new mortars waiting on me to pick up and try. Price of those mortars will keep most informed pros away but I told him Id give them a whirl after this last reformulation.
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Old 01-23-2018, 09:32 AM   #18
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For Ditra we use Laticrete 255 MultiMax below and Bostik Ditra-Set on top.

For Kerdi Board we'll use Bostik Ditra-Set.

We've tried the thinset offerings being made by Schluter, but our guys didn't like them at all. They take too much time to mix and they didn't have the grab that they like.
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Old 01-23-2018, 11:22 AM   #19
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Greg, do tell about reformulation of Schluter's thinsets. I tried last summer expecting much for $$ spent. Not impressed.
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Old 01-24-2018, 06:04 AM   #20
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The pallet of Schluter thin set continues to gather dust at my distributor. Everyone who has tried it is unimpressed. We have Ardex, Laticrete, and Mapei to choose from. I think it was a HUGE mistake for Schluter to venture into this arena.
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Old 01-24-2018, 11:48 AM   #21
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Has anyone used Mapei's Uncoupling Membrane Mortar?
http://www.mapei.com/public/US/produ...rtar_EN_lr.pdf

Available at your neighborhood Lowe's. I haven't tried it yet.
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Old 01-24-2018, 12:30 PM   #22
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Like Kerabond T, Uncoupling Membrane Mortar was designed to be used with the membranes on the market that require an unmodified mortar while still giving the thixotropic properties that work well with large and heavy tiles. If you want it modified for use with porcelain, you can add the Polymer Additive.
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Old 01-24-2018, 10:13 PM   #23
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Dan, can you comment on how Uncoupling Membrane Mortar is different from Kerabond T? Thanks
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Old 01-25-2018, 06:23 AM   #24
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If you want to stop all the nonsense with mortars, just switch your membrane. Mapei makes one that knocks the socks off of big orange. Modified thin sets are allowed.
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Old 01-25-2018, 07:52 AM   #25
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DG, we don't disclose the formula differences between the MAPEI products and the Lowes products. However, Kerabond T and Uncoupling Membrane Mortar meet the same specs and are formulated to have a similar feel when you're working with them. If you like one, chances are good you'll like the other.

Dave, thanks for the vote of confidence on our Mapeguard UM! We agree that it's a better mousetrap for a number of reasons.
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Old 01-26-2018, 10:00 PM   #26
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Pick the right modifier in your thinset, and it works just fine with Ditra or Kerdi. The problem is, the ANSI spec doesn't differentiate it, so it's hard to specify, and manufacturers change formulations without notice, so Schluter doesn't want to specify one that they don't control. Who knows when one new, improved formulation comes out that might have worked before, that no longer doesn't. The liability is too great.
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Old 01-26-2018, 10:40 PM   #27
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Dan, I thought Mapeguard is for floors only Does Mapei make a wall membrane?
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Old 01-27-2018, 09:55 PM   #28
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my two cents worth here up in the wet PNW

both set and all set peeled off the trowel and every thing else unless really burnt in to both surfaces where coarse and felt very sandy gritty
when set up . all set was super strong
seamed like way to much polymers in the mix ...
gone back to Ardex 5 or my other was mapei's LFT both in white just cause i like white thinset ......
like laticretes stuff but just not ready available where i live ...
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Old 02-05-2018, 08:26 AM   #29
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Mapeguard UM can be used vertically although typically you would only do so for a few inches at the bottom of the wall, there is even a built-in 7" crease to make it easy to do the up-turn. If you're trying to waterproof a wall, you're much better off with AquaDefense.
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Old 02-25-2018, 09:43 PM   #30
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If you really want to treat yourself switch your mat to Laticrete strata mat. There is no make sure you use this mortar here. Modified is good all around use 253 gold because it is gold. On small bathrooms Ive put the strata mat down and start tiling with the same mud. Ive never used Mapei's mat but if they have made one so you don't have to use and unmodified mortar then that's great.
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