I'm figuring that the slow dry time and water-sensitivity won't matter here, especially because it will be a week between the time I lay the backer and the time I start to tile. Also, can the same thinset be used for floor tile in the same bathroom? The dry mix (where you add the water on-site) does. You might consider a “full contact” mortar that meets A118.15F for such large tiles. When the mortar or thinset dries on the tile, it becomes difficult to remove. Start slowly so as not to splash the powder or water out of the bucket and stop when it’s the consistency of frosting or peanut butter. Am I nuts? For example, a 3/8" notch trowel will produce a 3/16th inch thick coating after the tiles are pressed in to the cement. Premixed thinset isnt thinset at all. Thinset Mortar: Mastic: Moisture Factor: Thinset can be used in very wet areas, even areas that will be completely submerged in water. … it is usually best for DIYers to use premixed mortar for spaces such as small … Use mastic for wall tiles or other vertical surfaces where you want tiles to stick immediately, and to stay stuck. I took my tub out to install a tiled shower. Needent be an expensive variety, just a good dry-set (un-modified) I personally find mastic a hellofa lot more messy than thinset. 18. You need near 100% contact between the hardibacker and the underlying plywood, or the hardibacker will flex and cause your tiles to pop or crack. Cut all hardi boards to size with a reciprocating saw and fill in any gaps necessary. AVAILABLE AT SELECT RETAIL LOCATIONS ONLY Additional Resources (links open in new tab) The best thing about mastic is those nice buckets that you can use over and over again. Traditional versions are cement-based powders that are mixed with water prior to application. … glass Mosaic Tile Shower Photo Gallery. This should be pretty easy since you have 1/4" view holes in between each. Even a dry mix will ooze. It's recommended for waterproofing niches, shelves, and entire shower walls when tar paper or poly are not used as a vapor barrier behind the CBU. Best Thinset For Hardibacker. Likewise, can you tile over waterproof membrane? Give the HB about 1/4" on the outer edges between the wall and about 1/8" between each other. SimpleSet® Pre-Mixed Thin-Set Mortar A no-mix, no-mess alternative to traditional thin-set mortars spreads quickly and easily. Laticrete 272 is considered the premium (best) – then Laticrete 317. These grades or levels are dictated by the ratio of cement to sand used in the mix. Pre-mixed thinset is actually mastic adhesive with sand thrown in it to approximate the physical look of thinset. 50. Use the real thinset. Best Areas: Thinset can be used for showers, bathtubs, backsplashes and other areas. Compare; Find My Store. it seems you guys distrust & despise premixed thinset. Mastic can be used in dry or damp areas only. for pricing and availability. It is also used to set porcelain tile and natural stone tile. I know not to use mastic on a floor, but (in order to avoid the mess and work of thinset), I was thinking of use the premixed (fake) thinset under the hardibacker. So build up and then use as little as will adhere the mosaic to the surface. You can hose the test piece down later to reuse it. I bet he didn’t and I’ll have to get someone else to tear it out and do it right. Because it needs to dry out to harden, using it under big floor tiles may prevent it from drying in the same manner that the plastic lid on the bucket does. A polymer modified thinset has additives (typically latex) that increase the bonding and decrease the shrinkage of the mortar, making it ideal for most tiling situations. It cannot be used in areas that will be submerged in water, such as swimming pools. It'll keep the cement board from moving up and down. You''ll be fine with thinset over Redguard on walls. It is very important to remove the thinset from the tile before it fully dries. for pricing and availability. This type of cement is designed to adhere well in a thin layer - typically not greater than 3/16th thick . MAPEI UltraFlex 2 50-lb Gray Powder Thinset Mortar. I’ll ask him. Mastic is good for backsplashes and small format tile 8" or smaller. Thinset is your go-to tile mortar for most indoor and outdoor applications. Model #0060055PL. Any thinset mortar that you mix with water will work underneath the Hardibacker. Contrary to popular belief, ceramic tile and grout, by themselves are not waterproof. Different size tile requires that you use a specific size trowel. An unmodified thinset doesn’t have these additives and is used in certain situations. Designed by myThem.es. To much thinset and or to thin will ooze right thru. What I would recommend is to use a high quality mastic (a premixed tile adhesive that is water-based) rated for vertical surfaces (walls). To keep the buildup down, you could use a membrane rather than cbu. Can be used with tile with one side up to 15" (38 cm), but dry time significantly increases. membrane, Hardibacker Drywall Properly prepared tile over tile Exterior Intermittently wet - showers, bathrooms, laundry rooms Submerged - pools, fountains, hot tubs Fast-setting Polymer-modified mortars for tile with any side > than 15" BEST Large Tile & Stone Mortar (12591 white) For use as an unmodified I prefer the 317. 19. 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. Only make enough thinset … Try not (don't) screw into the joists below the planks. "Premixed thinset" is mastic with sand in it. The amount of thinset you need is calculated by the square footage of the floor or wall, the size of the tile, and the size of notched trowel you use to spread it. Thinset tile mortar provides a very strong bond and is resistant to moisture and mold growth. Yes, it is needed, unmodified is fine for this, it’s there to fill any voids, if the floor is out of level, this should be fixed after the board is down, thinset under the boards won’t help there, the boards will follow …. There is negligible difference in these thinsets unless an admix is added to make them modified. (38 cm), but dry time significantly increases. Thank you for your help. Recommended to bond porcelain, stone, marble, granite and ceramic or porcelain tile up to 8 in. View Full Version : Applying thinset under Hardibacker? Thank you. Richard says. The Deflecto tool says my floor with 2x8 joists is L / 302, but says that max for tile is L/ 360. I'm figuring that the slow dry time and water-sensitivity won't matter here, especially because it will be a week between the time I lay the backer and the time I start to tile. July 4, 2020 at 8:27 am. Jill says. Mastic can actually stain some natural stones. Premium Mortar is a premixed no-mess alternative to traditional thin-set mortars that require water and mixing. I was planning on buying bags of thinset as I usually do. – user12686 Apr 24 '13 at 17:21. But most mortar manufacturer’s would allow for simply using their LFT line. It is nonflammable and ready to use. Cover an area large enough to place the first backer board sheet. That … Scoop up thinset on the flat edge of a 1/4-inch, square-notched trowel and spread the thinset across the plywood. For the tile, you’ll want an LFT mortar. Am I nuts? The bigger the denominator in the deflection calculator, the stiffer it is...sort of like 1/4 is smaller (less deflection) than 1/2. Mosaic and Glass Tile 10-lb White Powder Thinset Mortar. Mix up and apply a modified thinset to a large enough area of the plywood subfloor to cover each piece of backer board using a 1/4″ x 1/4″ notched trowel. Thinset mortar is commonly used for setting ceramic tile. Ceramic Tile Advice Forums - John Bridge Ceramic Tile. Complete the installation of all hardi board sections to cover the entire shower walls and floor if necessary. Which sounds good to me, but it gave me the "Thumbs Down". You do not need to tape or thinset. Compare; Find My Store. MAPEI UltraFlex 2 50-lb White Powder Thinset Mortar. Reply. Copyright © 2021. Model #0060057PL. The “F” stands for flowable. You need to see it for yourself to understand. Yes, you are nuts. ok tileman, another point of confusion. When you install a new marble tile floor, backsplash or tile surround you are bound to get a small amount of thinset on top of the tile when you grout. Thinset tile mortar has a smooth, slippery consistency, similar to mud. I know not to use mastic on a floor, but (in order to avoid the mess and work of thinset), I was thinking of use the premixed (fake) thinset under the hardibacker. Use backer board screws for the best installation. Re: Thinset Under Backer Board? It is also heatproof, so it won't lose its grip in hot environments. Thinset is a portland cement based product and cannot be stored already mixed in a bucket. vBulletin® v3.7.4, Copyright ©2000-2021, Jelsoft Enterprises Ltd. Reply. Powered by WordPress. Thinset tile mortar provides a very strong bond and is resistant to moisture and mold growth. But no thinset under the Hardibacker would be the number 1 thing I would look at. Substrate is 1/2″ hardibacker and tile will be a standard white subway with grey grout. Tara, The reason for the layer of thinset between the cement board and the subfloor is to fill the voids/gaps between the two. for pricing and availability. Lesson learned. Since thinset tile mortar has … Can be used with tile with one side up to 15 in. "Pre-mixed thinset" is mastic, Woody. If the luan is really glued, then you may need another layer of ply, probably 1/2" on top of it prior to the decoupling layer then tile. Although they classify the 272 as their ‘premium’, they’re nearly identical. Even though it is heavy to carry home and more expensive than dry mortar mix , it is usually best for DIYers to use premixed mortar for spaces such as small bathrooms, mudrooms, or utility rooms. The Latest Trends In Tiles And Tiling Tools. Recommended to bond porcelain, stone, marble, granite and ceramic or porcelain tile up to 8" x 8" (20 x 20 cm). Pre-mixed thinset can be a deceptive name as it implies an alternative to powdered thinset. … I assume that using some sort of modified thinset is the answer, but which brand? Position each piece of backer board in the thin-set, press in place, and attach using special backer board screws on the spacing recommended by the backer board manufacturer. HOW TO CHOOSE A THIN-SET MORTAR ©2011 2/11N Customer Support 800-272-8786 Technical Services 800-282-8786 custombuildingproducts.com There … I don't understand. I'm installing a kitchen/eating area floor. I don’t believe they specify a type. Model #15410136. Compare; Find My Store. Thinset is the glue that holds your tile to your floor or wall. Use a drill fitted with a mixing paddle to mix the thinset. An unmodified thinset (Masterblend) is fine between the Hardi and the subfloor. At my local Home Depot store here in Atlanta, only one thinset is rated for walls, and it can get expensive, not to mention prone to failure if you are a first time tiler. Thinset is your go-to tile mortar for most indoor and outdoor applications. When it comes to modified or unmodified thinset, there are different grades that you need to take into account. Can you use premixed thinset over redguard? Trush me, take one mosaic and test on a board or something. July 4, 2020 at 4:26 pm. (20 x 20 cm). "Pre-mixed thinset" is mastic, Woody. x 8 in. As mentioned before, the thinset fills the small gaps between plywood and cement board. Lot more expensive, too.Speaking as someone who CX knows is nuts :crazy: (and someone who, if I never hear the "M" word again, it'll be too soon) I was surprised to find that working with thinset (for between my subfloor & Durock CBU) was WAY easier that I ever imagined. Mix the thinset as if you’re mixing batter. Modified or Unmodified Thinset: Key Characteristics to Keep in Mind. The terms thinset cement, thinset mortar, dryset mortar, and drybond mortar are synonymous. SimpleSet pre-mixed thin-set mortar is a no-mix, no-mess alternative to traditional thin-set mortars.
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