SKU: 40646132932

MAPEI Uncoupling Membrane Mortar, 50-lb Gray Thin-Set/Medium-Bed Tile Mortar

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Description

MAPEI Uncoupling Membrane Mortar, 50-lb Gray Thin-Set/Medium-Bed Tile MortarMAPEI 50 lb Gray Uncoupling Membrane Mortar Dry set thin set medium bed mortar designed for installing ceramic and select natural stone over uncoupling membranes on floors and walls. Suitable for interior exterior use and can be mixed with MAPEI Polymer Additive for enhanced performance and broader substrate compatibility. Key Features: Built for Uncoupling Membranes: Formulated specifically to bond tile over uncoupling systems for reliable

MAPEI 50-lb Gray Uncoupling Membrane Mortar

Dry-set thin-set/medium-bed mortar designed for installing ceramic and select natural stone over uncoupling membranes on floors and walls. Suitable for interior/exterior use and can be mixed with MAPEI Polymer Additive for enhanced performance and broader substrate compatibility.


Key Features:

  • Built for Uncoupling Membranes: Formulated specifically to bond tile over uncoupling systems for reliable installations
  • Large-and-Heavy-Tile Capable: Approved for tiles larger than 15 in. with bond coats up to 1/2 in. embedded thickness
  • Versatile Mixing: Use water, or substitute MAPEI Polymer Additive to boost strength and expand substrate options
  • Interior/Exterior Use: Performance for floors and walls in residential and light commercial settings
  • Contractor-Friendly: 50-lb bag of gray powder mixes smoothly for consistent coverage

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Product name Uncoupling Membrane Mortar
Type Dry-set thin-set/medium-bed mortar
Color Gray
Bag size 50 lb (22.7 kg)
Use with membranes For use with uncoupling membranes
Application surfaces Floors and walls; interior/exterior
Tile/stone compatibility Ceramic tile and select natural stone
Large-format approval Approved for tile larger than 15 in. (38 cm)
Maximum bond coat thickness Up to 1/2 in. (12 mm) embedded thickness
Optional additive Can be mixed with MAPEI Polymer Additive instead of water for enhanced performance

Frequently Asked Questions (FAQ):

Q: Can this mortar be used with large-format tile?
A: Yes. It is approved for tiles larger than 15 inches with bond coats up to 1/2 inch embedded thickness.


Q: Is it only for floors?
A: No. It is formulated for floors and walls, interior and exterior, when used with appropriate substrates.


Q: Do I need an additive?
A: You can mix with water, but using MAPEI Polymer Additive enhances performance and allows use over a wider range of substrates.


Q: What color is the mortar?
A: Gray.


Q: What is the bag size?
A: 50 lb (22.7 kg).


Architectural Bond With Effortless Poise

This mortar brings a tailored precision to tilework, creating a seamless canvas that elevates stone and ceramic to gallery-level refinement. Its compatibility with uncoupling membranes ensures crisp lines and confident scale, especially with large-format pieces. Pair it with matte porcelain slabs for a calm, monolithic sweep across floors and walls. It’s the quiet luxury beneath the surface that makes the entire space feel impeccably crafted.


Choose MAPEI Uncoupling Membrane Mortar to secure your next tile installation with strength, versatility, and large-format confidence.

Installation

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 40646132932

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Elisa
Birmingham, US
★★★★★ 3
Sadly, DNF
Format: Kindle
I read this thru KU. I LOVED the synopsis. And then I began reading... and it was a DNF at 68% after picking it up and putting it down several times because I really loved the main female character. *****SPOILERS***** Pros: The world is unique, intriguing and fun. The primary female character is bad-a** but not a b*tech or a mary sue. The primary female has depth. I really want to know what happens to her even tho it's been weeks and I don't remember her name. The villains to the point I read are pretty good -- an ever present threat of mysterious and possibly many culprits. Cons: Way, way too many points of view. I stopped counting at 7. It's the prime reason why I don't care about most of the characters or remember their names even when I like them. There's just too many points of view so almost none of the characters have enough book space for the author to properly develop them. This literally killed the book for me. Actually it killed my desire to read. For weeks. The main male is more villain than hero. He agreed to marry the main female then locks her up & eschews her for her sister, all while bad mouthing her as unfit to rule when he never spent any time with her getting to know her. He is actually unfit to rule as he is blind to the woes of his own kingdom and starts off a peace mission to secure a ceasefire through marriage by murdering an inn full of people in her country for no real reason. Plus, he constantly makes promises he does not keep. And it's gross of him to pine for the sister behind the main female's back. ***** As much as I really wanted to see what happened to the main female character, it wasn't enough for me to keep trying to slog thru this book. There was a lot of potential here that just fell short. Hence, 3 stars.
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Reviewed in the United States on June 19, 2021
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MaryBeth K
Belleville, US
★★★★★ 5
Fae Courts with High Intrigue
Format: Kindle
This book is one that just builds and builds and then surprises you to no end. You may think you know the villains and then you are jolted in another direction. Princess Reyna is a real gem, strong of character, a fierce fighter, and loyal to her family and kingdom. Just when you think she and Lorcan, well you know, the plot is flipped. Can't wait to see where this goes in book two.
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Reviewed in the United States on July 7, 2023
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Kindle Customer Maureen
New York, US
★★★★★ 4
Slow, sorry but good
Format: Kindle
This was a slow moving book. Lots of character pov chapters, lots of superfluous descriptions and endless courtly appearances stalled this book to start. Once you get into the heart of the story, it takes off. Before you know it the book is done. My favorite character is Reyna. She is so strong. She is true to herself. She gets into a lot of trouble with her headstrong ways but it's entertaining. I have high hopes for Lorcan. He is honorable to a fault. Thane had turned out to be better than I thought but i still don't like him. Eislin is useless. Great plot twists at the end. I'm looking forward too book 2.
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Reviewed in the United States on June 6, 2020
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Faifre6
Phoenix, US
★★★★★ 5
Very detailed! Beautiful world building! Strong Heroine!
Format: Kindle
Starts off a little slow and confusing with different POV’s, but starts to all come together towards the middle to make an elaborate plot line and makes it all worth it. Beautiful world building and attention to detail as well as great writing. The cliffhanger was gut wrenching! Can’t wait for the next book!
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Reviewed in the United States on March 4, 2020
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Isabelle
Grantham, US
★★★★★ 4
Interesting
Format: Kindle
This was a very captivating book once you got into it thoroughly. But the third person perspective was a bit hard to get used to. But as you got into it and followed the different characters, it was interesting and filled with intrigue, conflict and forbidden love. I can’t wait to read the next one and to complete the series.
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Reviewed in the United States on November 12, 2022

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