Here's what you need to know to determine if modified or unmodified thinset is the right option for you. latex-modified thin-set mortar. Work Smarter. The type of thin-set mortar (modified vs. com There are various types of thin-set mortars formulated to fit specific application needs or requirements. It hinders water from penetrating to the interior structure of your shower. When you sandwich modified thinset between Kerdi (which is essentially a sheet of polyethylene plastic) and a porcelain tile, it sees no free air. latex-modified thin-set mortar can be used to surface. Waterproof Bathtub Walls with RedGard Easy as Painting Walls. 5 Gallon, Red Gard Waterproofing, Waterproofing and Crack Prevention Membrane, New Quick Dry Formula, Ready To Use, Elastromeric, Waterproofing and Anti-Fracture Membrane, Easily Applied With Roller, Trowel Or Sprayer, Meets ANSI A118. Polymer-Modified Mortars. A modified. Ardex and Schluter work together as a team in Europe and now here. No matter how firm the subfloor; the plywood will expand and contract at a different rate as the tile, causing cracks to develop in the grout lines. Kinda like hanging wallpaper maybe, but you tile over the top of it and can rest assured that things are watertight. Except for the small ones and the little corner pieces, I did not routinely back-butter or skim the back of the tile, but I did have to remove some skinned-over thinset from the wall a few times. How do I know if the thin-set mortar is modified or unmodified? In general, unmodified thin-set mortar is a blend of Portland cement, sand, and water retention agents that is mixed with water by the user. While you can lay tile directly over a concrete slab using thin-set adhesive, don’t make the mistake of applying tile directly to a plywood subfloor. I hope to use the allset thin set there, if I can find it locally. Fortified Thin-Set Mortar is a professional formula, all-purpose mortar, polymer-modified to provide good bond …. This means that the adhesion strength of the thinset was way less than with modified thinset. Premixed thinset is easier to use. What thin set should I use over Keri membrane? Modified or unmodified, latex or not? I get one story at Home Depot to use fortified modified with a polymer and the Keri info recommends non modified. With Ditra over a plywood subfloor, because the wood moves MUCH more than the thinset or the membrane with the tile on top, they specify a modified thinset to help. When waterproofing the joints between ditra membranes or cavities with the wall, I need an UNMODIFIED thinset? But I need MODIFIED thinset when tiling over the ditra heat membrane, correct?. Shop for appliances, paint, patio, furniture, tools, flooring, hardware, lighting and more at Lowes. Moisture in concrete can occur from a variety of sources: ground moisture that contacts the slab through either capillary action or as water vapor, high air humidity or drastic changes in relative humidity in its environment, leaking plumbing that passes through the slab. Over time you’ll determine what your preferred adhesive for porcelain tile installation is. As there was no direction on the red. Thursday, 26 January, 2017 at 7:40. The Ultimate Waterproofing System! Create a Space of Inspiration. If you are using a membrane in the system, it may be advisable to use a less highly modified mortar (such as an A118. Unmodified thinset is composed of Portland cement, sand, and water retention agents. In fact, they require modified thinset over a wooden substrate. A: Tom Meehan, co-author of Working With Tile (Taunton Press, 2011) and a second-generation tile installer from Harwich, Mass. Premixed thinset comes in a large bucket ready to apply. Latex modified tile mortars provide ultimate performance over many substrates. Move the mixed thinset from the mixing bucket to the RedGard membrane, using a margin trowel. Mix the thinset adhesive according to the directions. Find quality service, superior products and helpful advice for all your home improvement needs at Lowe's. Kinda like hanging wallpaper maybe, but you tile over the top of it and can rest assured that things are watertight. , responds: The question about when to use latex-modified thinset (called latex/polymer-modified mortar) versus when to use unmodified thinset (called dry-set. Installation can use recommended high-quality modified thin-set mortar readily available from multiple manufacturers for better adhesion and elimination of failure possibilities. Why do I have to use thinset between HardieBacker® cement board and the subfloor? Unmodified thinset (ANSI 118. The modifiers in modified thinsets need free air to "harden". MultiSet Modified Thin-Set Mortar offers a good bond for installing tile over concrete backer board and existing ceramic tile. For use over concrete, cement backerboards, drywall, exterior grade plywood, existing ceramic tile, vinyl flooring and plastic laminates. 12" thick) is perfect for waterproofing custom walk-in showers where ceramic, porcelain, or natural stone will be installed. You can apply latex modified thinset directly over the floor. Redguard modified or unmodified thinset keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. Thursday, 26 January, 2017 at 7:40. If you are using a membrane in the system, it may be advisable to use a less highly modified mortar (such as an A118. A no-mix, no-mess alternative to traditional thin-set mortars spreads quickly and easily. Can be used to install porcelain, glass, mosaic, quarry, ceramic and most natural stone tiles over interior or exterior concrete, masonry floor and wall surfaces and for interior. MultiSet Modified Thin-Set Mortar offers This 50 lb. I first recommended Kerdi board or membrane like a Kerdi sheet. Read honest and unbiased product reviews from our users. I personally don't like kerdi as they require unmodified thinset and I don't understand why they would have you use a shitty thinset. Thinset is the wet base that you first trowel on the plywood to make the tile stick. No matter how firm the subfloor; the plywood will expand and contract at a different rate as the tile, causing cracks to develop in the grout lines. This kit contains all the elements of the complete Schluter ®-KERDI-SHOWER-KIT except the KERDI-DRAIN. Over time you’ll determine what your preferred adhesive for porcelain tile installation is. 2" (49 cm) o. 12 Meets IAPMO/Uniform Plumbing Code Specifications For Use As A Shower Pan Liner, Protected By Moldgard Technology, Pail. But Redguard doesn't offer anywhere the uncoupling as does Ditra. Made right here in North America, Schluter thin-set mortars are formulated to ensure that you, the installer, get consistent and steadfast results with. I use strong modified. However, these surfaces must be prepped before applying thinset to ensure the material. Just went to inspect some work and noticed they weren't using thinset to lay down the cement board under porcelain tile. Package includes one 48" x 48" Shower Pan and size choice of one Extension Kit consisting of four pieces with mitered ends. As you know, unmodified is recommended over Ditra, even when installing porcelain. Modified Or Unmodified Over RedGuard Good day, I will be picking up my ceramic wall and floor tiles today to begin my shower. Find helpful customer reviews and review ratings for USG Durock 32" x 60" Shower System - Center Shower Kit at Amazon. Even though the drywall has been painted I might suggest a tile membrane (something like this) before you tile. Redguard modified or unmodified thinset keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. The rank by country is calculated using a combination of average daily visitors to this site and pageviews on this site from users from that country over the past month. For installations over concrete floors; Mix with Thin-Set Admix for higher bond strengths. " Is any custom polymer modified from HD ok to bond to CB and then the tile? Any input re Redgard and thin set would be appreciated. latex-modified thin-set mortar can be used to surface. Except for the small ones and the little corner pieces, I did not routinely back-butter or skim the back of the tile, but I did have to remove some skinned-over thinset from the wall a few times. If you have a piece of porcelain over Kerdi, the thinset is sandwiched between 2 fairly impermeable layers. Details Click for Manual Click for Video Click for Additional Info USG Durock Shower System Waterproofing MembraneUSG Durock Shower System Waterproofing Membrane (0. 76 mm) thick. Latex modified tile mortars provide ultimate performance over many substrates. With hundreds of choices can distract you. These dealers accept Project Lists and can help you choose just the right products for your project. Can Redguard be applied over modified or unmodified thinset? It appears you chose. I wouldn't put any tile larger than 1' in a bathroom. That said I have used red guard for budget minded projects and it works as well. Yes Rob, you were taught right! Many tile setters and homeowners that set tile don't know how important this is. I didn't really like this method because the manufacturer of the waterproofing membrane insisted that unmodified thinset was required for putting the tiles on the wall. " The tile is 20 X 20 and installed directly over an OSB floor. Cost, Time, and Skills: This job took two people one afternoon. Except for the small ones and the little corner pieces, I did not routinely back-butter or skim the back of the tile, but I did have to remove some skinned-over thinset from the wall a few times. i have years of experence with there products. It usually contains a latex additive. Over time you'll determine what your preferred adhesive for porcelain tile installation is. It is sag-resistant and ideal for setting tile on both horizontal and vertical surfaces. is applied with unmodified thinset on top of the mud and walls, directly under the tile. So unlike Mapei and Schluter, Laticrete and Schluter or Custom and Schluter you now have the option of improving on Schluter's weak specication here in North America. Thinset is based on portland cement. The slightly modified is good for the OSB install (since it permits the air necessary for it to dry), but invalidates the warranty if you do it between the ditra and tile. There are two schools of thought WRT to modifed versus unmodified and then there is the crack isolation membrane debate as well. The same goes for the Ditra. Water-mixed mortar or dry-set mortar is a form of thin-set mortar. When I asked the contractor, he asked his flooring guy who had been doing tile for 25 years and "never puts thinset under cement board". Merkrete 703 Thin Set is a professional grade polymer modified Portland. Waterproof Bathtub Walls with RedGard Easy as Painting Walls. Stone tiles demand an unmodified thinset to avoid the bleeding out of the resin to the stone, which causes a permanent stain. Pro WP is environmentally friendly and can be disposed of with normal household waste. This shower pan may be used with modified or unmodified thin-set waterproofing membranes such as PSC WP, Schluter Kerdi, etc. Anyone that has had to face a moisture problem with a concrete slab understands the damage that excess moisture can cause. Premixed thinset comes in a large bucket ready to apply. As Seen On. MultiSet Modified Thin-Set Mortar offers This 50 lb. wood framed floors. The invention of latex-modified thin-set mortar. ARDEX X 77 MICROTEC is a high performance, microfiber reinforced, polymer modified, thin set mortar formulated especially for large format tile installations. For installations over concrete floors; Mix with Thin-Set Admix for higher bond strengths. In this article, weve done the hard work for you. Polymer-Modified Mortars. I use strong modified. Unlike most other underlayment membranes, the Laticrete Strata Mat can be used with either modified or unmodified thinset. As Seen On. wood framed floors. Mastic vs Thinset - Which should I use? There's a newer tile adhesive introduced to the market that falls into the mastic family, some of them make claims that might end up causing you damage down the road. Fortified Thin-Set Mortar. Contractors and architects trust our fully-bonded waterproofing system for tiled showers to keep moisture out, water in and protect the integrity of the craftsman's work. Modified thinset can take a few days to dry under those conditions. Thinset mortar is suitable for application over concrete, masonry, brick, backerboard and gypsum wallboard. This shower pan may be used with modified or unmodified thin-set waterproofing membranes such as PSC WP, Schluter Kerdi, etc. Thursday, 26 January, 2017 at 7:40. Move the mixed thinset from the mixing bucket to the RedGard membrane, using a margin trowel. See more ideas about Flooring, Diy flooring and Home remodeling. There are a wide variety of thin-set mortars available, so it is easy to find the right fit for almost any given job. Q: What is the difference between modified and unmodified thinset, and in what situations should each be used?. Merkrete 703 Thin Set is a professional grade polymer modified Portland. However, RedGard specifies the use of a modified thinset which requires oxygen in order to cure properly. I'm feeling a little confused. Waterproof Bathtub Walls with RedGard Easy as Painting Walls. Custom Building Products VersaBond 50 lb. HOW TO CHOOSE A THIN-SET MORTAR ©2011 2/11N Customer Support 800-272-8786 Technical Services 800-282-8786 custombuildingproducts. Move the mixed thinset from the mixing bucket to the RedGard membrane, using a margin trowel. Latex-modified thinset for shower bed. Complete adhesive coverage is critical on large tiles (12 in. Unmodified thinset does not need to dry to reach full strength. Read questions and answers real customers have contributed for the Custom Building Products VersaBond Gray 50 lb. The mortar is reliable and easy to use. Although the bag says use for concrete floors, it can used used over OSB and underneath tile backerboard. Modified thinset can take a few days to dry under those conditions. Thanks for the post!! Well done! Ok let me get this straight, to install Ditra heat over a plywood floor, I need MODIFIED thinset. Finding the best waterproofing membrane suitable for your needs isnt easy. The terms thinset cement, thinset mortar, dryset mortar, and drybond mortar are synonymous. When you are installing over concrete that is sound you do not need modified mortar as it will stick just fine and will not be subjected to flexing, but on plywood floors where movement is likely it is best to use a high grade thinset with lots of admix. A modified. They are categorized as modified and un-modified. It is important to use a very good quality polymer modified thinset to install the ditra on the sub floor. 12" thick) is perfect for waterproofing custom walk-in showers where ceramic, porcelain, or natural stone will be installed. We used 18,000-pound screw jacks, 4x4. Make sure the tiles are dry and ready to be installed. The type of thin-set mortar (modified vs. It is sag-resistant and ideal for setting tile on both horizontal and vertical surfaces. Try removing lines of the glue for better adhesion. I have been reading about sticking tiles with different stuff and thinset keeps being mentioned and how good it is, but what is it? Are all tile adhesives thinset, ie is it just another name, or is thinset a higher quality adhesive? I see latex mentioned, is it that if a adhesive contains latex it is thinset?. • An economical large-and-heavy-tile (formerly known as "medium-bed") and thin-set mortar for installing ceramic tile and select natural stone on floors and walls • Can be mixed with MAPEI's Polymer Additive (instead of water) for enhanced performance, and for setting a wider range of tile and stone over additional substrates. Made right here in North America, Schluter thin-set mortars are formulated to ensure that you, the installer, get consistent and steadfast results with. Tile Subfloor, Thickness, Deflection Installing Electric Radiant Heat Pouring Self Leveling Mortar Leveling (Flattening) the Subfloor Installing Cement Board (CBU) Installing Schluter DITRA Marking Guidelines for Tile How to Lay Tile How to Grout Tile Joints There's a lot of information (and mis-information) online about what constitutes a suitable subfloor for tile, and it's tough to find a. Phil Green Post author January 22, 2013 at 8:28 am. 1) to lay down Ditra over wood. Modified thinset contains the same elements, along with liquid latex polymers to aid with strength and increase the working time. While you can lay tile directly over a concrete slab using thin-set adhesive, don't make the mistake of applying tile directly to a plywood subfloor. Discover MAPEI mortar & tile adhesive products, from polymer-modified to dry-set mortars and latex additives. Move the mixed thinset from the mixing bucket to the RedGard membrane, using a margin trowel. In the event this is not possible, minor differences in the elevation of the perimeter can be built up with thin-set mortar. With Ditra over a plywood subfloor, because the wood moves MUCH more than the thinset or the membrane with the tile on top, they specify a modified thinset to help. Custom Building Products VersaBond 50 lb. Do not install F IBEROCK Brand Underlayment over heavily cush-ion-backed,thick foam backed,or perimeter-fastened vinyl floor coverings. All Schluter-Systems' thin-set mortars, including the ALL-SET and FAST-SET modified varieties can be used to set tile over Schluter ®-DITRA, DITRA-HEAT, KERDI, and KERDI-BOARD products. In this article, weve done the hard work for you. Welcome to StoneTooling. • An economical large-and-heavy-tile (formerly known as "medium-bed") and thin-set mortar for installing ceramic tile and select natural stone on floors and walls • Can be mixed with MAPEI's Polymer Additive (instead of water) for enhanced performance, and for setting a wider range of tile and stone over additional substrates. The store you are switching to cannot currently accept online orders. When these all-too-common mistakes occur, standing water gets trapped in the shower pan below the tile level. You will almost definitely be using a portland cement mortar. Yes Rob, you were taught right! Many tile setters and homeowners that set tile don’t know how important this is. The terms thinset cement, thinset mortar, dryset mortar, and drybond mortar are synonymous. 269 Square Feet - 39. 1) or acrylic modified thinset (ANSI 118. If you have a piece of porcelain over Kerdi, the thinset is sandwiched between 2 fairly impermeable layers. Waterproofs nicely over various substrates. Easy to use. Please choose your country or language to be directed to the website of the corresponding subsidiary. What type of thinset should be used when I am tiling over GreenE-Board™? Modified thinset should be used, however, please use unmodified thinset when using the Schleuter system. Pro WP is environmentally friendly and can be disposed of with normal household waste. It is recommended for use in the thin set installation method for absorptive, semi-vitreous and vitreous tile over properly prepared masonry, concrete, and cement backer board. It is more expensive than dry powder, but unless the area to be covered is very large the convenience is usually worth the cost. If you use a modified thin set it must be on the approved list by the manufacturer. Re: Modified vs unmodified thinset Sometimes it is just the expense. 1 Make sure that back of existing vinyl covering is fully adhered and bonded. But you MUST carefully follow the instructions on use of modified and unmodified thinset! Modified thinset will not properly cure under or over these products. Modified Vs. If I hold a 4' level against the back wall, the left had side is about 3/8" recessed in some places. The additives found in modified thin-sets can give the mortar a bit more flexibility for older subfloors, like plywood. Fortified Thin-Set Mortar. RedGard® Uncoupling Mat; A waterproof, vapor-proof uncoupling membrane that can be used for crack-isolation in most tile, porcelain or natural stone installations, and can be applied over challenging substrates such as installation over green (young) concrete and single ply 19. As Seen On. That's why Schluter recommends non modified. In the event this is not possible, minor differences in the elevation of the perimeter can be built up with thin-set mortar. One example would be to use Laticrete's 317 thinset mixed with Laticrete 333 liquid latex additive. Custom Building Products VersaBond 50 lb. This shower pan may be used with modified or unmodified thin-set waterproofing membranes such as PSC WP, Schluter Kerdi, etc. Read questions and answers real customers have contributed for the Custom Building Products VersaBond Gray 50 lb. Only mix as much thin-set as you can use in a half hour and be sure to have solid support. Cost, Time, and Skills: This job took two people one afternoon. Waterproofs nicely over various substrates. Contractor said no that's just for steam showers. You must use an unmodified thin set to adhere the product and if it does not stick most people don't mix the thin set properly (too much water) ,use the proper trowel or apply moisture to the walls. Re: Modified vs unmodified thinset Sometimes it is just the expense. No matter how firm the subfloor; the plywood will expand and contract at a different rate as the tile, causing cracks to develop in the grout lines. Better waterproofing. Unmodified thinset is for bonding with impervious surfaces (Ditra, concrete) and goes under the tile. 1) or acrylic modified thinset (ANSI 118. Package includes one 48" x 48" Shower Pan and size choice of one Extension Kit consisting of four pieces with mitered ends. TEC is a leading brand of high quality, technologically advanced products for the installation and surface preparation of tile, stone, carpet, wood and resilient floor coverings. It is formulated with. If you feel you must seal it or want a slipsheet for cracked substrate, use Redguard. If you have a piece of porcelain over Kerdi, the thinset is sandwiched between 2 fairly impermeable layers. The only way you can use modified thin-set is with products from Ardex. It hinders water from penetrating to the interior structure of your shower. Modified is usually called for over plywood or OSB. 12" thick) is perfect for waterproofing custom walk-in showers where ceramic, porcelain, or natural stone will be installed. Includes all the components required to build a fully bonded water tight assembly for tiled showers. All Schluter-Systems' thin-set mortars, including the ALL-SET and FAST-SET modified varieties can be used to set tile over Schluter ®-DITRA, DITRA-HEAT, KERDI, and KERDI-BOARD products. In this article, weve done the hard work for you. The same goes for the Ditra. Thinset Decoded: Which is the best thinset to use for Ditra, Kerdi, porcelain tile, floors, large tile, wood look tile, and showers. Unmodified thinset does not need to dry to reach full strength. the james hardie co was founded in 1888,started making cement backerboard in the 1980's. I hope to use the allset thin set there, if I can find it locally. Complete adhesive coverage is critical on large tiles (12 in. 1) to lay down Ditra over wood. Call Technical Services at 800-272-8786 for more. Pro WP is environmentally friendly and can be disposed of with normal household waste. 5 inches or more of deck mud under the shower floor tile will never dry. Ideally, the tray should be cut equally on each side to maintain a level perimeter for the first course of tile. For installing shower wall tile, the trend in high-end remodeling and custom work is toward a concrete backer board - most commonly Durock or Hardibacker - covered with a membrane - either a liquid like RedGard or a sheet such as Schluter Kerdi or Wedi. USG DUROCK® BRAND CEMENT BOARD For more than 30 years, USG D urock® Brand Cement Board has set the standard for proven performance in the backerboard category. Read questions and answers real customers have contributed for the Custom Building Products VersaBond Gray 50 lb. This means that the adhesion strength of the thinset was way less than with modified thinset. Adesilex P10 Mosaic & Glass Tile is a premium-grade, bright white, multipurpose thin-set Ceramic Tile Mortar. After spreading a thin layer of thinset over the old tile, install Schluter-Kerdi membrane. Make sure the tiles are dry and ready to be installed. Moisture in concrete can occur from a variety of sources: ground moisture that contacts the slab through either capillary action or as water vapor, high air humidity or drastic changes in relative humidity in its environment, leaking plumbing that passes through the slab. In general, unmodified thin-set mortar is a blend of Portland cement, sand, and water retention agents that is mixed with water by the user. Modified and Unmodified, and those two ways also come in grey and white. , responds: The question about when to use latex-modified thinset (called latex/polymer-modified mortar) versus when to use unmodified thinset (called dry-set. Use an angle grinder equipped with a diamond blade to score the old tile. It is recommended for use in the thin set installation method for absorptive, semi-vitreous and vitreous tile over properly prepared masonry, concrete, and cement backer board. Sealing Hardi backer and glass block window This would be unmodified thinset correct? If you're going over Redgard, you can use modified thinset. I have the membrane up already using a non modified thin set. Tile Installation. Can you tile over tile in order to save time? A: The short answer is, most likely, yes. Ceramic tile Underlayment, crack isolation membrane for wood and concrete Floors Tile. 12" thick) is perfect for waterproofing custom walk-in showers where ceramic, porcelain, or natural stone will be installed. PANDOMO® Decorative Concrete. When installing new stone, ceramic or porcelain tiles over a vinyl tile subfloor, thinset is definitely the way to go. Ideally, the tray should be cut equally on each side to maintain a level perimeter for the first course of tile. Tile set by the thinset method is adhered to the substrate with a thin layer of "thinset" cement. The advantage of these products is that they move the waterproofing layer to the back of the tile instead of under the tile bed. How to Use Cement Additives. com Custom Building Products is the leading manufacturer of tile and stone installation products for surface preparation, setting,. unmodified vs modified thinset. The appropriate product standard for unmodified thin-set mortars is ANSI A118. I just purchased more for another shower and it works perfectly. Modified thinset contains the same elements, along with liquid latex polymers to aid with strength and increase the working time. Custom Building Products VersaBond 50 lb. unmodified) used to install DITRA depends on the substrate. Polymer-Modified Mortars. TEC is a leading brand of high quality, technologically advanced products for the installation and surface preparation of tile, stone, carpet, wood and resilient floor coverings. For instance, to install DITRA over plywood, a modified thinset mortar should be used. I hope to use the allset thin set there, if I can find it locally. Can you tile over tile in order to save time? A: The short answer is, most likely, yes. MultiSet Modified Thin-Set Mortar offers This 50 lb. Finding the best waterproofing membrane suitable for your needs isnt easy. Know when you should use modified vs unmodified thinset. unmodified) used to install DITRA depends on the substrate. A very different scenario exists when trying to bond a tile to cbu or plywood, or nearly anything else, and a modified thinset can often provide a stronger bond than an unmodified. Click on the image for pricing and more information. 2" (49 cm) o. roll 150 sq. For use over concrete, cement backerboards, drywall, exterior grade plywood, existing ceramic tile, vinyl flooring and plastic laminates. The type of thin-set mortar (modified vs. Custom Building Products VersaBond 50 lb. Before you can decide between modified or unmodified thinset, you need to ensure that you understand their strengths and weaknesses, their applications, and when it's best to use one versus the other. Read questions and answers real customers have contributed for the Custom Building Products VersaBond Gray 50 lb. The advantage of these products is that they move the waterproofing layer to the back of the tile instead of under the tile bed. Today, they want it installed over a bed of thinset. The same goes for the Ditra. Buy a latex-modified thin-set (one brand is FlexBond) and mix it in small batches to keep it from skinning over. It is recommended for use in the thin set installation method for absorptive, semi-vitreous and vitreous tile over properly prepared masonry, concrete, and cement backer board. The terms thinset cement, thinset mortar, dryset mortar, and drybond mortar are synonymous. Fortified Thin-Set Mortar is a professional formula, all-purpose mortar, polymer-modified to provide good bond …. Here’s what you need to know to determine if modified or unmodified thinset is the right option for you. Modified thinset contains the same elements, along with liquid latex polymers to aid with strength and increase the working time. Use a chalk line to mark the tile layout, leaving room for the grout. Polymer-Modified Mortars. (similar to RedGard) to. Today, they want it installed over a bed of thinset. Why spend money on polymers which are not needed. Easy to use. There are more variations and more coming but this will give you the basic idea. Over time you'll determine what your preferred adhesive for porcelain tile installation is. Anyone that has had to face a moisture problem with a concrete slab understands the damage that excess moisture can cause. Work Smarter. The Ultimate Waterproofing System! Create a Space of Inspiration. The structure of the layer is hydrophobic, and water beads up on its surface area. Sizes Available: 323 sq. I personally don't like kerdi as they require unmodified thinset and I don't understand why they would have you use a shitty thinset. A modified. Find quality mortar online or in store. Latex modified tile mortars provide ultimate performance over many substrates. Details Click for Manual Click for Video Click for Additional Info USG Durock Shower System Waterproofing MembraneUSG Durock Shower System Waterproofing Membrane (0. Many people suggest a minimum cure of 28 days under normal conditions, although most thinset manufacturers say you may get away with 14 days using a premium latex modified thinset. The trouble is that thinset generally requires a textured surface to bond at. However, ANSI A118. Thinset mortar is suitable for application over concrete, masonry, brick, backerboard and gypsum wallboard. The key to using modified or unmodified thinset has to do with whether the thinset can dry easily or not. The modifiers in modified thinsets need free air to "harden". Moisture in concrete can occur from a variety of sources: ground moisture that contacts the slab through either capillary action or as water vapor, high air humidity or drastic changes in relative humidity in its environment, leaking plumbing that passes through the slab. Competing waterproof membranes that require unmodified thin-set cannot be used with glass or some porcelains. Thinset is based on portland cement. It's a very small shower area, 30×60. Don't use the premixed thinset!!! Use a good modified thinset (white or gray depending on tile and grout color!!! Use the leveling clips!!! Spread the floor and backs of the tile with a 1/4 inch square notch trowel!!! This will allow plenty of glue for leveling clips to work and still have good thinset coverage under tiles!!!. In this article, weve done the hard work for you. The rooms are small and large tiles are a pain in the ace. Lay the waterproofing membrane. If you feel you must seal it or want a slipsheet for cracked substrate, use Redguard. Ezheatzone. Hey Tom, I don't necessarily think cement board is better, rather I'm almost 70 years old and if this thing fails in 10 or 20 years I won't be a happy camper. Why spend money on polymers which are not needed. Sizes Available: 323 sq. Offers long open and adjustment times and up to 20% more coverage than traditional thin-sets. Tile Installation. I have been reading about sticking tiles with different stuff and thinset keeps being mentioned and how good it is, but what is it? Are all tile adhesives thinset, ie is it just another name, or is thinset a higher quality adhesive? I see latex mentioned, is it that if a adhesive contains latex it is thinset?. Un-modified thinset (from powder) stuck to the tiles and to the Redgard perfectly well. But you MUST carefully follow the instructions on use of modified and unmodified thinset! Modified thinset will not properly cure under or over these products. Creating.