With the quartz lock2, or at least the high white color......I've been going nuts trying to get it off of marble and other high gloss tile
But my rep told me last week to go over tile with a wet sponge before grouting and man! It's crazy how much easier it was. All the other colors I've never had a problem.....can't believe something that simple works

 

I noticed that on their online video, the tile is a 8.5" porc with a rough stone texture sooo I figured that i'd better do that before hand.
My supplier got stuck with an order so I ended up with killer price on thinset... I got Durabond D-20 modified to set ditra to the ply and Laticrete 317 for setting tile... 9 bucks a bag, that's good for here!

 

Am I ok with d-20 under ditra , on ply... I gotta try to talk my supplier into getting d-25

 

Tech Dawg - don't forget to roll the ditra. I use one of these.

http://ecx.images-amazon.com/images/I/21D2JVCRAHL._SL500_AA300_.jpg

 

Got one of them + a wood float...

 

I'd call Schluter before rolling. I swear...somewhere....it says to not use that.

I have the ole wooden trowel. That has always worked just fine for me.

 

I'd call Schluter before rolling. I swear...somewhere....it says to not use that.

I have the ole wooden trowel. That has always worked just fine for me.

They told/showed us in the course to roll it. Great, now I have to go to the Schluter site and check.

Tomorrow, too tired tonight.

 

Here are a few excerpts I found:

"As you press the DITRA it will displace the thinset for a moment under the pressure but then try to return to its memorized shape and could create voids under the DITRA."

"Last year I was putting down a lot of ditra and got tired of crawling around on the floor pushing it in by hand. So I bought a 100lb. roller just for that purpose. Then....
I went to the Schluter class about a month later and they specifically advised against using a heavy roller on Ditra. They said the only roller they would recommend would be a 35 pounder."

I'd say call and get Herr's blessing before using one.

 

Angus, durabond d-20 modified (porcelein set)? I figured since its modified id be ok to set ditra to floor...

 

Is it modified? I believe you need to use a latex additive.

 

Ill have to check the bag again but im sure it said it was modified

 

I don't see any ingredients that make it modified:
Silica: 40-70%
Portland: 30-60%
Gypsum: .5-1.5%

:sad:

 

It's gotta be modified, mixing instructions say to mix with water. Admix only required for exterior installations. It does specifically say not for use over plywood though. But that probably means not for use over ply to set tile.

I'm not overly familiar with Durabond setting materials, though I have used them without issue on a few jobs where setting materials were supplied to me.

 

I just read the bag... It does say not to use on ply, but the front says polymer modified thinset... I figured the same as Greg about the ply part?

 

I'm not buying it from any of the published info I see. Bostik's website lists the above mentioned ingredients. None of that shows me anything modified.

Another site Bostik site states it's only A118.4 when mixed with Admixture
http://www.bostik-us.com/markets/flooring/ceramic/ansi/default.html

Just call......1-800-726-7845. Let us know what they say.

 

I would not use it. I found a listing on another site that says it's only A118.1 when mixed with water.

Again, call to verify.

 

Yep, Angus is right, it's only A118.4 with the latex additive. http://www.bostik-us.com/markets/flooring/ceramic/ansi/default.html#a118.4

 

What do ya think Angus, use something different?

 

Ill call em tomorrow n c what they say...at worse ill get some admix

 

Hey Tech Dawg, since you're using the Laticrete 317, why not just get some 333 additive for use under the Ditra? 317/333 is a great combo for setting Ditra.

 

Soooo they don't have the Bostik admix but I can get the laticrete admix and set ditra to wood with 317 and use d-20 to set tile...no?

 

I would say yes, as long as you can confirm the D20 is a premium unmod.

 

Soooo they don't have the Bostik admix but I can get the laticrete admix and set ditra to wood with 317 and use d-20 to set tile...no?

Got 1 bag of each so I'm trying to figure how to use it up.... or ill just get another bag of 317 and mix up the d-20 for under the shower base

 

Yes, that 30-60% of portland is a very high content. I have used very little Bostik products, mainly Ditraset but I have liked what I used.

 

D-20 is slightly modified but not enough to show up on the chart so I'm gonna use that to set my swan base... I found a different supplier close to my town, Dauphin Tile. They stock D-40 modified so I gotb that to set the ditra and they also have Ditraset(yay) so I will buy from them and the other nice thing is they have the huge rolls of ditra so they cut off what I needed and charged me for that instead of buying a whole roll so that worked out good.
Ditra set is 27 bucks a bag there... but only place around here to get it

 

Ditraset is good, real good actually. But not $27 good. :no: :laughing:

I can get Ditraset for under $15. But I can also get Kerabond for under $9. Also, I can get a jug of Keralastic (latex) so I don't have to lug around different bags of thinset. Just add the latex to what I need modified and the rest is for setting over Ditra.

 

Hey Angus, you're familiar with Mapei products, what do you think of Ultraflex 2 for putting down Ditra?

 

Nice work!

 

What the??????

 

I still gotta work on the price with them since I just showed up to buy the stuff... I called schluter and they said ditraset or kerabond is the best, laticrete is so/so and custom is the bottom rung... noone here has kerabond and this Dauphin tile is the only place that has ditraset so I guess I'm payin more for now. I called bostik n they won't sell me a skid

 

Got a pretty good start today, although the floor was a pain to get up

 

I gotta put 5/8 ply before ditra... subfloor has 2 floating seams. Still use flooring screws, but not on joists? I got a bunch of cbu screws...