I had no idea this was a problem until I just watched someone else's bathroom fail, all because they used premixed "thinset". The mortar begins setting once it is mixed, so you have to use up the entire batch or discard any excess. There are also some additives that you can put into some unmodified thinset to increase the retention properties. (38 cm), but dry time significantly increases. 12-07-2016, 07:40 PM . The powdered stuff is … Standard and Pre-Mixed Thinset . Unmodified thinset is recommended in specific waterproof settings and is … It's said that the regular thinset mortar is good for backsplashes but many contractors are using the premix thinsets too. We have to stick pretty close to manufacturer's instructions, and the ANSI standards that we … Modified thinset contains the same elements, along with liquid latex polymers to aid with … Suffice it say: NEVER USE PREMIXED THINSET FOR ANY REASON. Can be used with tile with one side up to 15 in. This means that you can cover the tub when you're done and store any unused grout for use later (often up to a year). "Premixed thinset" is mastic with sand in it. I think the pros here are about to launch a revolution about the absolute mislabeling of that product, it just sucks. If anything is going to stain it will be marble. All thinset mortar is a portland-cement-based product, so it dries the same way concrete does. Durability. Ready mix or premixed grouts should not be confused with cementitious grout mortar or sanded grout. I laid sheets of smooth stone on the shower floor using the pre-mixed. We need reliable mixing drills that can blend up the thickest of slurries into top quality mud and mortar to the desired consistency. 01-27-2008, 07:07 AM. I used premixed thinset on my custom, preformed shower base and laid the floor tile. Thinset is a portland cement based product and cannot be stored already mixed in a bucket. XXX-er. Be sure that you are installing these 3 x 6 subway tiles over a rated surface such as tile backerboard. Premixed thinset isnt thinset at all. I realize this was wrong on so many levels. The Winner: Tied. I experienced this the hard way. Unmodified thinset is composed of Portland cement, sand, and water retention agents. But don't confuse it with any premium mortar. Thin-set is a specialized mortar that has been designed to be applied as a relatively thin (3/32" or less) layer. The dry mix (where you add the water on-site) does. However, one negative about the pre-mixed compound is you are continually opening and closing the lid. Use a good quality WHITE modified mix as you go thinset. How to Grout With Pre-Mixed Grout. New Member : Dec 27, 2007, 09:38 PM The premixed is the definite easier way to go (and just as good outside of attaching fixtures such as soapdishes or shelves on the wall), if it's a small bathroom it won't cost that much more but it will be well worth it to you. The thin set that I used is the pre-mixed stuff and that is what I am worried about. What is different between pre mixed and the stuff you mix your self? It is used, in the hands of a professional, to even out the subfloor so that the MORTAR can be applied. We can't tell you that, though. x 8 in. Really nervous I just majorly screwed myself. If there where any tile I would be hesitant about using glue, it would be marble. For tile mortar we unsuccessfully tried Superior Adhesvive and Chemicals Pro Bond Non Sag Thinset Mortar. The only way you get premixed thinset is if your helper mixes it and brings it to you...the same day. Pre-mixed 'thinset' is JUNK. The unfortunate truth is that it's mastic and … Of course, any product will only be as good as how you prepare for the project. Pre-Mixed Thin-Set Mortar SimpleSet pre-mixed thin-set mortar is a SimpleSet pre-mixed thin-set mortar is a no-mix, no-mess alternative to traditional thin-set … More Reviews ›› Visit Site Choosing the Right Outdoor Tile Adhesives. The latter grouts come in powdered form and must be measured out according to package directions and mixed with water before the substances may be used to keep tile in place. Mortars designed to be used with large tiles (greater than 15" on any side) or … 12-01-2008, 11:41 AM. Premixed thinset comes in big tubs and is ready to apply right out of the package. Joe, Read my post from this morning entitled "Tell me,how bad is it? While it does share the thin-set name, it is still not recommended for waterbound areas. Just mix small batches. Mastic is good for backsplashes and small format tile 8" or smaller. In larger installations, mixing the grout … Not sure about the product you are using, but I have used premixed thinset and ran in to problems with "boggers" in the thinset after the tub being opened several times. Good mixing drills are a staple of our profession as tilers, plasterers, brick-layers and contractors (if I left you out, don’t worry, you still rock). Limited amounts of mold can be scooped out, allowing the rest to be used. Within a month, the thinset had re-emulsified and the little stones were moving. Inorganic and composed of materials mined from the earth, thinset is inexpensive and can be purchased either in wet, pre-mixed or dry, powdery form. However, overall, the actual application process of these two products is fairly similar. 09-06-2006, 03:43 PM. Best … We won't discuss any of the premixed type [so-called thinsets] because they are at this period in time useless products and aren't worth the price of the bucket they come in. SimpleSet White 1 Gal. This is basically mastic with sand added to it. Click For Pricing. SimpleSet pre-mixed thin-set mortar is a no-mix, no-mess alternative to traditional thin-set mortars . They might tell you to double up on the screws and go with it. Mastic can actually stain some natural stones. Thanks toolguyny Posts: 18, Reputation: 3. Use of the reinforcing mesh with … They are typically also a good choice for 6" x 24" wood plank look tiles. The best thing about mastic is those nice buckets that you can use over and over again. Jaz _____ TILE GUY - retired- TROY, MI - Method & Product suitability consulting. Back buttering is typically recommended for tile 12" or larger on any one side. What is a 'medium-bed' or a 'Large and Heavy Tile' mortar? For an outdoor patio, you will almost always use a modified thin-set mortar for an adhesive. For interior wall and floor installations. The same goes for most of the premixed grouts but not all. We were having trouble with the bottom tile row … (20 x 20 cm). The price difference is around $100 - $120. Perhaps … In addition to convenience, another main benefit of this grout type is that it doesn't need to be sealed because it's not gritty and porous like standard grout. Surfaces must be structurally sound, clean, dry and free from grease, oil, dirt, curing compounds, sealers, adhesives or any other contaminant that would prevent a good bond. This permits air and hastens the drying process inside the bucket. Pre Mixed Thinset. Same thing for the grout, it says OK for shower walls but not floors? Concrete must be free of efflorescence and not subject to hydrostatic … another test I like to use is to invert a plastic cup on top of the concrete and I put an asprin under the cup, 24 hour later you can tell how much moisuture is in the floor by picking up the asprin and rubbing between your fingers. The tile was laid roughly 1 week ago and the thinset has dried. Let us know if you have any further questions, Joseph . Recommended to bond porcelain, stone, marble, granite and ceramic or porcelain tile up to 8 in. And of course there is no such thing as pre-mixed VersaBond. Top www.thespruce.com. Thin set is the "flat … Use … But that is after I used premixed mortar (Simple Set Pre Mixed Thin-Set Mortar ANSI 136.1 Type 1 – non modified, I believe) when taping the seams/screw holes over the HardieBacker cement board. No it is not an adhesive tile, it is good old fashioned ceramic. I read that some contractors use premixed thinset like Omnigrip for attaching tiles and others use the regular thinset mortar. Grout is a commonly used product that makes tiling projects appear professional and clean upon completion. Can you use premixed thinset over redguard? Is the premixed thin set as good as mixing the powder up? thanks. Mortar is the "glue" for porcelain. Carbidetooth. Mastic is suitable for use on walls, in dry areas, for ceramic tiles (not natural stone) that are no larger than 8" x 8". I ended up not using the shower for two weeks, then loaded it up with grout, and poured tile sealer (1/16" thick) pool of it all over the floor while covering the drain. Hi Rick, :) I would call James Hardie on this one. Used pre-mixed thinset mortar in bathroom tile: Am I screwed? I learned the hard-way that the pre-mixed is NOT good for shower floors. It is nonflammable and ready to use. Let's keep it simple so I can understand what I am saying, besides I'm not a very scientific type … Comments (13) Thin set is NOT for setting porcelain. Has a similarly higher drying time to mastic. Pre-mixed Thinset A mix between traditional powder thin-set and mastic. Hardi-backer IS very thirsty, and the mastic might set up. The dry mix (where you add the water on-site) does. One difference is, some modified thinsets come pre-mixed, which would translate to less work for you. Premixed grout is an unsanded grout and does not contain cement. But the addition of the latex changes the chemical … Mixing mortar is a messy job and it sets up A lot … No, no, what he means is not pre-mixed, he meant to say pre-blended. This is a polymer modified thinset. It cures through drying rather than chemical reaction. And anywhere that you can use mastic, thinset will work, too. From what I have read, the premixed thinset does not dry out to form a good adhesive bond when applied over/under a non-permeable membrane like Redguard or the Kerdi-band products. Even though it is heavy to carry and more expensive than dry mortar mix, the ease and convenience of premixed thinset … Porcelain needs DEAD FLAT substraight. Ideally, such labelling would not be permitted. This is good advise any time you are putting a flooring product onto concrete. Some times the pill is no … Worse, it can also introduce organic debris which will create mold in the mixture. I should have started with the wall tile and I should have used an unmixed thinset. dr.olds. But do this only as long as you are certain that the rest of the joint compound is 100 … I … A thin set cannot get you this alone. Additionally, thinset comes in either unmodified or modified versions. Anywhere else, use real thinset. Concrete must be cured 28 days and accept water penetration. From what I have read, the premixed thinset does not dry out to form a good adhesive bond when applied over/under a non-permeable membrane like Redguard or the Kerdi-band products. So, all thin-sets are mortars but not all mortars are thin-sets. Buying and Using Tile Adhesive Many … In the 'good old days' (of about 15-20 years ago), all bagged thinset was the same, and you bought and added latex 'milk' to it instead of water if you wanted to modify it to be stickier (like adding hydrated lime to brick mortar to make it fatter, sort of). Try it, you will be suprised at how some seamingly dry floor give off a lot of moisture. 35 Related Question Answers Found Do you have to use mesh tape with RedGard? VersaBond is an entry-level modified thinset which works fine for most projects. … Premixed Mortar is a premixed no-mess alternative to traditional thin-set mortars that require water and mixing. Trowels with 1/2" x 1/2" x 1/2" notches are generally recommended for tile 12" x 12" to 18" x 18" tile. It also doesn't have enough "grab" to hold anything other than itself. Premixed Mortar can be used in intermittent wet conditions such as backsplashes, countertops, shower walls and floors. It is nonflammable and ready to use. Call Technical Services at 800-272-8786 for more information. You know that decking mud or mortar is thick and damn hard on any electric motor and that’s why I found the … Glossy or painted surfaces must be sanded, stripped and cleaned of waxes, dirt or any contaminants. What is labelled "premixed thinset" is really sanded mastic. The good news is the tear out will be very easy and you should be able to salvage the kerdi after washing off the mastic. Share: 21 replies. Does it matter which thinset I use? This is in contrast to 'medium-bed' (up to 1/2" thick) and traditional 'mud bed' installations (1" or more). After I started using it, I read the label and it said OK for showers, just not the floor. :) John Bridge. Dec 7th, 2014 6:23 pm #2; t3359 Deal Expert … Standard thinset comes as a bagged powder that is mixed with water. NEVER and DO NOT install tiles directly over sheetrock (drywall) using tile mastic. Preparation is key to making sure your tile installation will last for years to come. What the former products offer is convenience, as the mixing has been done for you. Premixed thinset is only mastic with sand added and shouldn't be used on floors. 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