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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LINDA J. ANANIA
Natrona Heights, US
★★★★★ 5
Effective Whitening
I’ve used these white-strips before. They are easy to use and have good results with a natural look.
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Reviewed in the United States on April 30, 2026
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Shelbi Perez
West Palm Beach, US
★★★★★ 4
Really works
Really good. Works great. Noticed whiter teeth within a few uses.
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Reviewed in the United States on April 29, 2026
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princessjulieta
Boise, US
★★★★★ 5
A Working Set Of Strips
This is not expensive. It does whiten your teeth. I don't see the 3d effect. You get some strips. 2 Types. This box will last you some time. If you want white teeth then this can help make it happen. This weirdly caused me pain the last few times I used them. Outside of this no issue with them. They come on and off no problem. I kinda recommend this. Just be careful.
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Reviewed in the United States on January 25, 2026
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Annie
New York, US
★★★★★ 5
Great value purchase
I wanted to get my teeth professionally whitened and have never done stripes before, but the professional whitening was quoted at $700 so I thought this would be a good start instead. I have done them a few times and the teeth get sensitive the next day but thats to be expected and no more than usual, then goes back to normal. I haven't done a ton but have noticed a difference already and plan to continue doing them!
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Reviewed in the United States on March 31, 2026
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Whitney Leline
Draper, US
★★★★★ 5
My annual go to for sparkling whites before events
I have sensitive teeth and worn down enamel. These strips whiten without pain or additional sensitivity. I use this once or twice a year before big events. It works great for that sparkling smile. (Time only allowed for 10 days of whitening this time. The additional 3 days included in this pack would’ve resulted in even more dramatic effects)
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Reviewed in the United States on June 1, 2026

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