Forum Title: Ditraset For Floor Tile Between Porcelain And Denshield?
Can ditraset be used for floor tile between porcelain tile and denshield? Just curious as its the same concept as kerdi. Why would a modified thinset cure between tile and denshield but not tile and kerdi membrane?
Category: Tile Post By: PEGGY HENDERSON (Sugar Land, TX), 03/15/2019

Quote: Originally Posted by Spencer Can ditraset be used for floor tile between porcelain tile and denshield? Just curious as its the same concept as kerdi. Why would a modified thinset cure between tile and denshield but not tile and kerdi membrane? Modified will cure between ditra/Kerdi but at a slightly slower rate. I have used modified on both with no issues but they don't recommend it and for warranty it's best to use ditraset

- SALLY NEWMAN (Syracuse, NY), 04/07/2019

Quote: Originally Posted by Spencer .... Just curious as its the same concept as kerdi. Why would a modified thinset cure between tile and denshield but not tile and kerdi membrane? Kerdi is a vapor barrier, while Denshield is not - the coating is a water stop and moisture retarder, according to their literature, so a modified thinset will continue to dry (the polymer part requires drying, not just curing). As do many, I use modified with Kerdi, and don't expect problems. In a commercial environment I would not use modified with Kerdi, in order to preserve the warranty.

- ERIK WOLFE (Sacramento, CA), 05/21/2019

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