MAPEI Uncoupling Membrane Mortar, 50-lb Gray Thin-Set/Medium-Bed Tile Mortar
SKU: 40646132932

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

Sale price$17.80 Regular price$19.78
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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.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 40646132932

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4.1 β˜…β˜…β˜…β˜…β˜…
Based on 944 reviews
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Product Reviews
A
Verified Purchase
Amazon Customer
Los Angeles, US
β˜…β˜…β˜…β˜…β˜… 5
Good book for superhero lovers
Format: Hardcover
Great, large bright colorful book for kids! Simple read for younger readers. All the great superhero stories.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 13, 2025
D
Verified Purchase
Diana L.
Grantham, US
β˜…β˜…β˜…β˜…β˜… 5
Lots of stories for bedtime!
With the changes we all have gone through and that I have not been able to visit my grandson who lives in another State, we have come up with bedtime story Time! It is wonderful! This is one of the books I got for him because he loves his Spider-Man! The book is great, it has short enough stories that are easy to read to a 3 year old and has very bright and well done pictures (which I might add he tells me who these characters are!) I will be able to read to him out of this book for a few nights for sure. I have not bought many books, but do believe this one is very well made. It will be a great addition to his collection when I can finally give it to him.
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Reviewed in the United States on May 19, 2020
T
Verified Purchase
Tracey
Charlottesville, US
β˜…β˜…β˜…β˜…β˜… 5
Great quality book
Format: Hardcover
Great quality book for superhero kids
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 4, 2025
M
Verified Purchase
Mommy LoCo
Grantham, US
β˜…β˜…β˜…β˜…β˜… 4
A great collection, but fails to cast Black Panther as a superhero
There are some great things about this collection of stories: women are well represented in lead roles; backstories for Miles Morales, Steve Rogers, Carol Danvers, and Tony Stark; stories that incorporate Black men as role models; and the important role technology plays in many of the stories. Now for our big disappointment. The Black Panther story is not about T'Challa becoming Black Panther, but more about Spider Man fighting Kraven, and once disarmed, Black Panther making him, "pay for the crimes [he has] committed against the animal kingdom," by delivering "the final blow." This did not sound like superhero/ role model behavior to us. I also found it strange that all the background characters in this story were white. That is not the New York city I know. The stories included are: - Miles Morales as the black spider man - Gamora vs. Nebula - Steve Rogers becoming Captain America - Spider-Man finding his place among heroes - Black Widow and Hawkeye - Carol Danvers becoming Captain Marvel - Rocket, Groot and technology - Captain America vs. M.O.D.O.K. - Tony Stark becoming Captain America - Spider-Man and Black Panther vs Kraven - Drax, girlfriend Kaz, and Star-Lord - Captain America and Iron Man seek help of Captain Marvel Overall, my son enjoys reading these stories and looking at the pictures. Though we will need to continue our search for a good Black Panther story, we are glad we bought this collection of stories, with the Miles Morales becoming Spider-Man story my son's new favorite.
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Reviewed in the United States on June 7, 2020
A
Verified Purchase
Amazon Customer
San Leandro, US
β˜…β˜…β˜…β˜…β˜… 5
Loved it
Format: Hardcover
Great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026

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