SKU: 20792555601

MAPEI UltraFlex 1 50-lb Gray Powder Thinset Mortar

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Description

MAPEI UltraFlex 1 50-lb Gray Powder Thinset MortarUltraFlex 1 Gray Thinset Tile Mortar, 50 lb Standard grade, polymermodified thin set mortar for installing tile on interior and exterior surfaces. Delivers reliable adhesion to common substrates, including plywood, meeting ANSI A118. 4E and A118. 11 when mixed with water. Ideal for residential floors and walls and select commercial applications. Key Features: Polymer Modified Performance: Enhanced adhesion to substrates and tile for dependable

UltraFlex 1 Gray Thinset Tile Mortar, 50 lb

Standard-grade, polymer‑modified thin-set mortar for installing tile on interior and exterior surfaces. Delivers reliable adhesion to common substrates, including plywood, meeting ANSI A118.4E and A118.11 when mixed with water. Ideal for residential floors and walls and select commercial applications.


Key Features:

  • Polymer-Modified Performance: Enhanced adhesion to substrates and tile for dependable installs
  • Versatile Application: Suitable for interior/exterior tile on floors and walls; residential and select commercial use
  • Meets Standards: Complies with ANSI A118.4E and A118.11 when mixed with water
  • Convenient 50‑lb Bag: Ample coverage for tile-setting projects; gray color blends under grout
  • Single-Component Mix: Just add water for consistent, easy-to-work mortar

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Product Name Ultraflex 1
Type Standard-grade, polymer-modified thin-set mortar
Color Gray
Bag Weight 50 lb (22.7 kg)
Mixing Single-component; mix with water
Standards Meets or exceeds ANSI A118.4E and ANSI A118.11 when mixed with water
Applications Interior and exterior installations of tile; residential floors and walls; commercial interior floors and walls and exterior floors

Frequently Asked Questions (FAQ):

Q: Can UltraFlex 1 be used over plywood?
A: Yes. When mixed with water, it meets ANSI A118.11 for installation over suitable plywood.


Q: Is this mortar for interior or exterior use?
A: Both; it is approved for most interior and exterior residential applications, plus interior and exterior floors in certain commercial settings.


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


Q: Do I need additives?
A: No additives are required; UltraFlex 1 is single-component and mixed with water.


Q: What types of tile can it set?
A: Suitable for most ceramic and stone tile installations per MAPEI guidelines.


Quiet Strength Beneath Every Tile

UltraFlex 1 lays a steadfast foundation, letting your tile’s texture and tone take center stage. Its polymer-rich body ensures crisp lines and a flawless set, elevating everyday surfaces into refined planes. Pair it with warm terra-cotta or sleek porcelain for a timeless, tailored finish. Consider it the essential underpinning of luxurious, lasting design.


Choose UltraFlex 1 today for reliable, standards-compliant tile installations with strong adhesion and easy mixing.

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: 20792555601

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Ann Fullwood
Lexington, US
★★★★★ 5
Good top!!
Size: X-Large, Color: White
True to size! Feels good and is comfortable. Recommended to others!!
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Reviewed in the United States on May 30, 2026
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DPS
Draper, US
★★★★★ 5
Comfortable and convenient
Size: 34, Color: Kangaroo
Got these to replace some old cargo shorts that aren't made anymore and are developing holes. So far I have been very pleased. The waist fits true to size and the fit is relaxed through the seat and thigh, which is exactly what I was looking for since I have somewhat stout thighs relative to my waist. I'm 6'0", about 200lbs, with a 34-35" waist. The material feels sturdy without being overly heavy, about as thick as old ripstop BDUs. Front slash pockets are generously deep; no problem carrying a 5.5" smartphone in there. Rear pockets are sufficiently deep and are narrow enough that a trifold wallet won't turn itself sideways. Cargo pockets are adequately sized and have hook and loop closures at the corners. The "tech" pocket behind the left cargo pocket is very convenient for me, as I'm used to carrying my phone on that side. I can slide my Samsung Galaxy S25 in there and it fits well without worrying about it falling out. I wore these for a couple of days at Disney World last week and they performed very well. Moving my phone to that tech pocket made rides with lap bars or belts much more comfortable. I even washed these shorts at the resort so I could wear them on the long drive home. If I could change anything about them, I'd add about an inch of length, as I prefer a full 11" inseam on cargo shorts. And maybe add a button or some kind of closure to the rear pockets. But aside from that, these have been pretty close to perfect. I expect I'll order more as I replace more of my older cargo shorts.
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Reviewed in the United States on April 23, 2026
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Campbell1951
Lake Worth, US
★★★★★ 5
Great Shorts
Size: 38, Color: Grain Twill
Ok.... I have bought these several times, the shorts aren't wearing out or tearing, I am losing weight,.... I like these shorts so much, I keep buying them in my new size... Every size (44 42 40 and 38) has fit well, good length, and are comfortable... Pockets are functional, left side fits my smart phone... Yes, I will buy them again....
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Reviewed in the United States on May 16, 2026
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GradyW
Whiting, US
★★★★★ 4
Lightweight and comfortable
Size: 42, Color: Kangaroo, Size: 42, Color: Kangaroo
The fit is just right and they're very comfortable. This is the second pair I've bought and the review could easily be for both pairs. The only difference between them is the color. I deducted a star because they really need at least 2 more belt loops. Why do manufacturers skimp on something that would be so inexpensive to do right? The belt loops on either side of the front button are 11 inches apart. Ideally they'd be at most 5 or 6 inches apart. Anyway, these will be the shorts I wear to do my yard work. I can put my phone in the right hand cargo pocket and know that the Velcro closure won't let it fall out while I'm working. My keys will go in the left side cargo pocket. I'd definitely buy them again. The price is right and they are comfortable to wear.
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Reviewed in the United States on May 12, 2026
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BW
Cuba, US
★★★★★ 5
Very well designed shorts!
Size: 36, Color: Gunmetal
Bought one pair awhile ago, and now buying several more. Great relaxed fit, very comfortable, good fabric weight AND pockets not designed by morons - actually so easy to store and retrieve wallet and phone unlike Dockers and Izod and other cargo shorts I've purchased in the past. So comfortable and well designed. They're cut a little large for the stated size - but not necessarily a bad thing, and waist has a little bit of stretch. Love them!
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Reviewed in the United States on May 22, 2026

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