Internet #100154560

Model #MGMM50

Store SKU #588059

Natural Stone and Large Tile 50 lb. White Premium Mortar

  • High bond strength
  • Supports large and heavy tile for flat, even floor installations
  • Sag and slip resistant - immediately holds wall tiles in place
  • See More Details

Frequently Bought Together

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Price:
$2926

Product Overview

spread mortar with notched trowel

Right for Any Job

Select your mortar based on the specific performance needs of the installation.

Custom Building Products mortar packages

Tile Setting Mortars

CUSTOM has the right mortar for your tile installation project.

Step 2 to lifetime warranty

Lifetime Warranty Installation System

Use qualifying Prep, Set and Grout products to get a lifetime warranty on your tile installation.

lay tile on spread mortar

Tile and Stone Setting

CUSTOM offers the broadest line of tile and stone setting materials to give the exact performance your job demands

traditional thinset good better best

Traditional Thinset Mortars

Use traditional thinset for tile with all sides under 15 in.

large format product hierarchy

Large Format Tile Mortars

Use a large format tile mortar for tile with any side 15 in. or longer.

premium mortar packages

Premium Mortars

Use premium mortars to qualify for a Lifetime Warranty system.

trowel notches and tile size

Small or Big Trowel

Trowel size is based on tile size

mortar coverage based on trowel notch

Less or More Coverage

Coverage based on trowel size

Indoor or outdoor

In and Outdoors

Interior or exterior applications

water drop on tile for wet areas

Use in Wet Areas

Wet applications including showers

compatibility

Works with Any Grout

Compatible with all grout types

Video play

Step by Step

Easy instructional videos online

Custom Building Products Natural Stone and Large Tile Premium Mortar is a premium quality, polymer-modified mortar for any size natural stone or large format ceramic or porcelain tile 15 in. (38 cm) or larger on one or more sides. This mortar can also be used to install clay pavers or for medium bed applications. With a non-slumping formula that reduces the chance for lippage and promotes level tile installations, the mortar can be applied for horizontal applications as thick as 3/4 in. (19 mm) or for thin bed applications to 1/4 in. (6 mm).
  • High bond strength
  • Sag and slip resistant - immediately holds wall tiles in place
  • Supports large and heavy tile for flat, even floor installations
  • Reduces installation time and labor by eliminating lippage and minimizes the need for additional leveling
  • Exceeds ANSI A118.4 and A118.11 standards without the need for additives



  • California residents

Info & Guides

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BrandCustom Building ProductsCustom Building ProductsCustom Building ProductsCustom Building Products
NameCustomFloat 50 lbs. Bedding MortarNatural Stone and Large Tile 50 lb. White Premium MortarSimpleSet White 3-1/2 Gal. Pre-Mixed Thin-Set MortarSimpleSet Gray 3-1/2 Gal. Pre-Mixed Thin-Set Mortar
Price
$1787
$2926
$4768
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Ratings
(58)
(485)
(1281)
(1281)
Product typeMortarLarge format tile mortarThin-set mortarThin-set mortar
LocationCeiling,Countertop,Floor,Interior wall,ShowerCountertop,Exterior wall,Floor,Interior wall,Shower,Swimming pool,Tub surroundBathroom,Countertop,Floor,Interior wall,Kitchen Backsplash,Tub surroundBathroom,Countertop,Floor,Interior wall,Kitchen Backsplash,Tub surround
Flooring Material FeaturesNo Additional FeaturesNo Additional FeaturesNo mixing required,PremixedNo mixing required,Premixed
Maximum coverage area (sq. ft.)25100154154
Indoor/OutdoorIndoorIndoor/OutdoorIndoorIndoor
Flooring Product TypeFlooring Powder MortarFlooring Powder MortarPremixed Thin-Set MortarPremixed Thin-Set Mortar
View ProductView ProductView ProductView Product

Specifications

Dimensions

Maximum coverage area (sq. ft.)
100
Product Width (in.)
15

Details

Additive required
Water
Color Family
White
Commercial / Residential
Commercial / Residential
Dry time (hours)
24
Flooring Material Features
No Additional Features
Flooring Product Type
Flooring Powder Mortar
Flooring Type
Cement,Ceramic,Porcelain,Stone,Tile
Indoor/Outdoor
Indoor/Outdoor
Location
Countertop,Exterior wall,Floor,Interior wall,Shower,Swimming pool,Tub surround
Product type
Large format tile mortar
Product Weight (lb.)
50
Quantity
1
Returnable
180-Day

Warranty / Certifications

Manufacturer Warranty
Eligible for a Lifetime Warranty

Questions & Answers

211Questions32Answers

Do I need to mix the whole bag or can I mix as much as a need at a time?

Asked by Backsplash February 22, 2021
5
Answers

No, you don’t need to mix the entire bag at one time. You can mix as much as required for your job, just make sure not to add too much water and remix it periodically after the initial mixing, rest period, and remix to keep it the correct consistency.

What mortar is best for 24x24 porcelain wall tile in dining room

Asked by DD February 8, 2021
1
Answer

Natural Stone and Large Tile Premium Mortar is suitable for use when setting 24" x 24" porcelain tile on a wall. For further assistance please contact us at 1 800 282 8786 option 2.

can this be used for porcelain subway tile for shower walls over existing tile coated in redguard?

Asked by Jason December 23, 2020
3
Answers

Why would you do that?!!! Strip the old crap back to the drywall, repair to smooth coat with a hydro barrier such as Laticrete then yes, you can use this product.

Is this product for use over painted drywall

Asked by Jim December 8, 2020
4
Answers

This product was used on a concrete floor to apply porcelain tile. It is a good product for this type of application and worked very well. Adhesion to painted dry wall may be described on the packaging. If not the manufacturer may be able to provide better answer.

190 degrees ok?

Asked by Rick November 28, 2020
3
Answers

In order for us to give you the best possible answer, we would like to know a few more details regarding your project. For further assistance please contact us at 1 800 282 8786 option 2.

Can this be used with an uncoupling membrane?

Asked by Jess November 19, 2020
4
Answers

Yes. I have done two floors. You skin coat this under the membrane then over the top and comb and place tile. No cracks or issues.

Can you use this outside for attaching stone veneers to a wall?

Asked by Steve November 4, 2020
4
Answers

The instructions limit the types of substrate to which the mortar will adhere, interior or exterior. Consult the product instructions and limitations to confirm your substrate is cceptable.

Working time once mixed

Asked by Slowride October 23, 2020
2
Answers

Natural Stone and Large Tile Premium Mortar has a 'pot life' of approximately 4 hours and an 'open time' of approximately 20 minutes once mixed. For further assistance please contact us at 1 800 282 8786 option 2.

Once mixed how long do I have before it sets up in bucket

Asked by Slowride October 23, 2020
2
Answers

Natural Stone and Large Tile Premium Mortar has a 'pot life' of approximately 4 hours and an 'open time' of approximately 20 minutes once mixed. For further assistance please contact us at 1 800 282 8786 option 2.

How many square feet of floor can a 50 lb mortar can cover?

Asked by Edgar August 14, 2020
4
Answers

63 to 100 sq feet. Depends on trowel size and back buttering. See Custom technical data sheet for details.

Natural Stone and Large Tile 50 lb. White Premium Mortar - page 2

Customer Reviews

  • 4.7
    out of 485 reviews
  • 91% recommend this product
5star-icon369
4star-icon82
3star-icon16
2star-icon3
1star-icon15
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Showing 1-10 of 485 reviews
Great quality but pricey
I used to work on construction 10 years ago and they used to buy thin-set for much less but it worked great on my project. Better spend more than regret later. You put tile not really often so quality is the most important
by ivan
1 person found this helpful
This "medium bed", "polymer modified" mortar cracks
Lay about a half-inch layer of this product to level the edges of a 5-foot-wide space with floor slightly bulging in the middle. This situation prevents using self-leveling compounds, which would leak through the edges to the basement. Product label says it can be laid up to 3/4 inch think. Mine was 1/2 inch maximum. Covered installation with plastic so that it retains moisture. It was done over WonderBoard. In 2 weeks, layer developed a web of cracks. This is supposedly "polymer modified", mixed and laid by the book, but acts like cheap thinset. Save yourself the trouble, buy regular medium bed from Mapei and a latex polymer additive, that way you know you have a flexible underlayment and won't fall victim to manufacturer's cost-cutting practices. Now I have to go waste my time buying latex additive, for a product that was supposed to be crack-free to begin with.
by DC
Used it in my Pool
I had some natural stone tiles that were coming off in my pool steps. I looked around for thinset/mortar that can be used underwater and it would last. I drained the pool, gave enough time to dry the area. apply the mortar as thinset and as grout. Going to wait about 14 days before I add water back in. You can see the image. I used it on my first two steps.
by Kunjan
1 person found this helpful
Works well with any type of tile ...wall or floor
Works well with any type of tile ...wall or floor
by Youngmark
2 people found this helpful
Easy to use and effective. Would like to see long term effects.
Easy to use and effective. Would like to see long term effects.
by NFR
For regular porcelain 12x12 tiles I normally use Versabond thin-set (http://www.homedepot.com/p/C...
For regular porcelain 12x12 tiles I normally use Versabond thin-set (http://www.homedepot.com/p/Custom-Building-Products-VersaBond-Gray-50-lb-Fortified-Thin-Set-Mortar-MTSG50/100162542); however, when it came time to renovate the basement in my recently purchased house my wife decided that normal tiles were not good enough for her. Instead she purchased a mix of 12" x 48" tile for the main room as well as slate pieces for the closet. The more economical mortar are not rated for either large tile nor stone which necessitated an upgrade to this premium mortar. Though it is twice as expensive, I only expect to do the job once and wanted a quality application. This product did not disappoint, it worked perfectly. It was easy to mix with an attachment to a drill and applied smoothly. It held both the stone and oversized tiles quite well with no separation or surfacing.
by Tim
8 people found this helpful
Great for large format wall tiles. I used it on 12x24 wall tiles and it was great.
Great for large format wall tiles. I used it on 12x24 wall tiles and it was great.
by jeni
3 people found this helpful
We use to install a very heavy tile 24" H X 16" W X 3/8" T, on wall and ceiling for a master bedr...
We use to install a very heavy tile 24" H X 16" W X 3/8" T, on wall and ceiling for a master bedroom bathroom and steam room, this mortar grap the Tiles like a Beast, keeping on place the tiles and given time to level and square you Tiles, very easy to handle, I really recommend this product.
by Miguelara0514
5 people found this helpful
HD employee recommended this for hanging large format natural stone on a vertical surface. I've ...
HD employee recommended this for hanging large format natural stone on a vertical surface. I've done large tile on floors and small tile on verticals for backsplash, but had never done large tile on a vertical. Was using this on 12"x24" slate tiles over a brick fireplace facade, so I was a little nervous the tiles would not stay put. Be sure to mix this pretty thick per instructions, use the recommended 1/2x1/2 notched trowel, and it works very well. The tiles did not move and set up very quickly once pressed in place.
by EAM
12 people found this helpful
Worked Great for my stone wall projects!
Worked Great for my stone wall projects!
by Frost444
1 person found this helpful
Showing 1-10 of 485 reviews