Premixed Thinset

 
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Old 01-25-2008, 09:27 AM   #1
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Premixed Thinset


ok tileman,

another point of confusion. it seems you guys distrust & despise premixed thinset.

I was planning on buying bags of thinset as I usually do. (im sure I'm overthinking my travertine, I'd have it laid on a slab in no time. but laying over wood has my eye out for red flags.)

do you guys suggest making it myself? or do you consider the jars of "peanut butter emulsion" premixed mud???...

I have a friend (accountant/suit) heuse the bucket of peanut butter & its mushy.

anyway, long story short
bag mix or scratch mix?

ty

ray
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Old 01-25-2008, 09:39 AM   #2
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Re: Premixed Thinset


Mix it up. The pre-mixed requires air to cure, so on large tile it might take weeks to set up.

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Old 01-25-2008, 10:55 AM   #3
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Re: Premixed Thinset


I use mix myself. It cures faster and personally like the way it trowels better than premixed. I have used premixed for a back splash and it took days to dry. I will never use that stuff again. You said you are using travertine, make sure you use a WHITE thin set. The dyes in the gray can bleed though you tile and I can assume you will not be happy.
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Old 01-25-2008, 11:25 AM   #4
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Re: Premixed Thinset


I think I'm not expressing myself...

do you consider purchased sacks premixed?
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Old 01-25-2008, 01:08 PM   #5
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Re: Premixed Thinset


the sacks of dry powder are perfectly fine to use... I cant imagine anyone trying to make their own thinset from seperate materials.

The term Pre-mixed thinset was conjured up by the manufacturers... It's basically a tile mastic with some sand added for body.. I dont really see any use for the stuff at all. Regular ol' creamy mastic has it's uses, but for the most part, I stick with sacks of thinset. I use Versabond for damn near anything.

So to answer your question, No, I dont think anyone would consider a sack of Versabond premixed.
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Old 01-25-2008, 03:23 PM   #6
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Re: Premixed Thinset


Do you really want to suffer the consequences of doing a floor in pre mix mastic just to escape minutes of time mixing a bag of modified thinset?
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Old 01-25-2008, 03:25 PM   #7
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Re: Premixed Thinset


No, no, what he means is not pre-mixed, he meant to say pre-blended. And of course there is no such thing as pre-mixed VersaBond. VersaBond is an entry-level modified thinset which works fine for most projects. But don't confuse it with any premium mortar.

Pre-mixed 'thinset' is JUNK.

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Old 01-25-2008, 03:33 PM   #8
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Re: Premixed Thinset


that's the ticket,
I thought you guys meant preblended is junk...
ty,

I go through skids of preblended orange sacks in a season, so I was wondering what the prob is....
long story short
sacks/preblended

premixed/peanut butter in a bucket...

ty
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Old 02-05-2008, 07:13 PM   #9
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Re: Premixed Thinset


did you say you are installing travertine over wood???
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Old 02-06-2008, 10:44 PM   #10
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Re: Premixed Thinset


You can actually install tile over a mix of portland cement and moist sand.
Most people use a cutback like thinset, but you can stick the tiles while the mud mix is wet and level.
The trick is to layout your job and make sure everything is prepped.

That's the ultimate "mix" to use for your tile.
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Old 02-12-2008, 09:46 PM   #11
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Re: Premixed Thinset


I have to disagree with you Coops, to play the devils advocate, but if this is true it could help with profit down the road. Sand and cement? Do you have a link? I'm going to set a tile with this tomorrow and pull it up in a few days to check bond strength. Manufacturer's instructions are always helpful if that fails.

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Old 02-13-2008, 08:30 AM   #12
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Re: Premixed Thinset


Kel, it's actually the oldest, strongest, and most successful installation method in the world. It's normally what's known as a mud job (minus the cutback-- that threw me, too). Although very few in the trade know how to do a TRUE mud job, it still exists. Matter of fact, I'll be doing a small one here sometime next week-- where the mortar bed goes down, gets dusted with portland cement, gets sprinkled with water to activate the cement, and then the tile goes in immediately, gets beaten in with a beating block and hammer, and then grouted and finished all at one time. No latex, no thinset, no waiting for the bed to dry and harden. DONE.

However, you won't find its strength within a couple of days. Matter of fact, it's usually recommended that you don't even WALK on the floor for 3 days, no regular traffic for a week, and nothing heavy for 28 days. THEN you'll begin to see its strength, and the longer the installation is there, the tougher it'll get.

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