Modified vs unmodified thinset

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Are you wondering about modified vs unmodified thinset mortars? The internet is full of information and even misinformation on this very subject. In fact, this debate has stoked many of the conversations and threads on the tile and building forums for years. There have been some developments in recent years and new information to digest. Similarly, be sure to check out the main post that I wrote which is an ultimate guide to thinset and helps you decide which one you need for your projects.

Modified vs unmodified thinset

When it comes to thinset, choosing between modified or unmodified thinset can leave many tile installers scratching their heads. Is one better than the other? Or is it just a matter of personal preference, convenience or plain work habits? Unmodified thinset has been around forever. Old-school professionals know how to work with it and understand its application perfectly. But, in the last decades, we have witnessed the rise of the modified thinset. Its simplicity charms more and more installers. Unlike unmodified mortar, which consists only of a blend of Portland cement, sand, and water retention agents, modified thinset includes additional retention products, such as latex polymers, which can increase its performance and strength. That translates into less work for you and sturdier concrete for the client. Case closed, right? Obviously, modified thinset is the better option, and all this debate is useless. Not so fast! Adding water to Portland cement starts a chemical reaction known as hydration. The cement reacts with the water and forms interlocking crystals, which make cement hard. These crystals grow as long as they expose to moisture.

When sandwiched between two impervious layers — the tile and the installation membrane — drying can only take place through the open grout joints, which can take as long as 60 days!

Our Projects Division offers a complete underfloor heating supply and installation service for large-scale projects. Modified or unmodified thinset, what is the difference? This question has puzzled DIYers and construction professionals alike for years. Although very similar in name and application, these two products differ in critical ways. Before we get into the differences between modified vs. Thinset is a thin cement-like material capable of bonding tile to various substrates using only a very thin bed. Thus, the name thinset.

Our Projects Division offers a complete underfloor heating supply and installation service for large-scale projects. Modified or unmodified thinset, what is the difference? This question has puzzled DIYers and construction professionals alike for years. Although very similar in name and application, these two products differ in critical ways. Before we get into the differences between modified vs. Thinset is a thin cement-like material capable of bonding tile to various substrates using only a very thin bed. Thus, the name thinset.

Modified vs unmodified thinset

However, should you get modified or unmodified thinset? The type you choose will depend on your project and how much strength and flexibility you will need. Modified thinset is ideal for stone and tile work because it contains special polymers that make it strong and easy to work with.

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That's a really good question, and, as you identified, it's a question with a lot of factors that have to be considered. This question has puzzled DIYers and construction professionals alike for years. It was also difficult to store and keep it from degrading. Truth be told, modified thinset has rapidly become more popular. Guest User June 17, Wear protective equipment when you are mixing thinset. Although circumstances still require the use of unmodified thinset, the many advantages of modified are rapidly making it the preferred product for most tile situations. For a floating floor using our Environ Flex Roll or Easy Mat product, you won't likely need an adhesive on top of the heating element but you should have an underlayment like cork sheets above the subfloor but beneath the heating elements. Cannot be combined with other offers or promotions. Thus, the name thinset. Modified thinset is available as a powdered mixture in most, if not all, home improvement stores.

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Is It necessary to use RedGard before installing porcelain tile on cement floor? Because Unmodified thinset needs to cure, a chemical reaction caused by hydration rather than dry, the waterproof materials allow the thinset to retain its moisture and form a strong bond between materials. Go to your local hardware store and tell them about your project. Join the Discussion Question or Comment? Cameron Witbeck for WarmlyYours June 11, Unmodified thinset is composed of three main ingredients; portland cement, sand, and powdered water retention additives. In the case of modified thinset, the percentage of the retention product added into the mix is also a telling factor for quality. That translates into less work for you and sturdier concrete for the client. Further, all are approved for Schluter products with the exception that the unmodified SET not be used to install Ditra over plywood subfloor. Whether you're installing floor heating under your porcelain tiles or not if so, we recommend using an uncoupling membrane with floor heating cable to help protect your floor from foundational movement and telegraphing cracks from the subfloor , you should be using a latex-modified thinset. Cart 0.