SKU: 46759516553

MAPEI Keracolor U Unsanded Grout, 19 Pearl Gray #5019, 10-lb Bag

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Description

MAPEI Keracolor U Unsanded Grout, 19 Pearl Gray #5019, 10-lb BagKeracolor U Unsanded Grout Pearl Gray (10 lb) MAPEI Keracolor U is a polymerenriched, unsanded grout for narrow joints on porcelain, ceramic, glass, and natural stone. The Pearl Gray #5019 color delivers clean, modern lines, while BioBlock technology helps resist mold and mildew for durable interior or exterior installations. Key Features: For Narrow Joints: Designed for 1 16 in to 1 8 in grout joints for smooth, pinholefree finishes Versatile Use:

Keracolor U Unsanded Grout – Pearl Gray (10 lb)

MAPEI Keracolor U is a polymer‑enriched, unsanded grout for narrow joints on porcelain, ceramic, glass, and natural stone. The Pearl Gray #5019 color delivers clean, modern lines, while BioBlock technology helps resist mold and mildew for durable interior or exterior installations.


Key Features:

  • For Narrow Joints: Designed for 1/16-in to 1/8-in grout joints for smooth, pinhole‑free finishes
  • Versatile Use: Suitable for porcelain, ceramic, glass/mosaic, marble, granite, travertine, and natural stone; indoor or outdoor
  • Enhanced Durability: Polymer‑enriched formula with BioBlock technology for mold and mildew resistance
  • Pool-Ready After Cure: Approved for submerged applications after a full 21‑day cure
  • Upgradable Stain Resistance: Mix with MAPEI Grout Maximizer instead of water for added stain resistance and flexibility

Specifications Table:

Specification Details
Series Name Keracolor U
Type Unsanded grout with polymer
Color/Finish Family Gray
Manufacturer Color/Finish Pearl Gray #5019 (Color 19)
Unit of Measure Pound(s)
Unit of Measure Quantity 10
Use Location Indoor or outdoor
For Use with Bathroom Floors Yes
For Use with Bathroom Walls Yes
For Use with Fireplace Exteriors Yes
For Use with Garage Floors No
For Use with Garage Walls Yes
For Use with Kitchen Backsplashes Yes
For Use with Kitchen Counters Yes
For Use with Patios Yes
For Use with Pools Yes (after 21-day cure)
For Use with Shower Floors Yes
For Use with Shower Walls Yes
For Use with Vinyl Floors No
Freeze Resistant Post Installation Yes
Mold Resistant Yes (BioBlock technology)
Sanded/Unsanded Unsanded
Sealing Required Yes
Stain Resistant Yes, with additive (Grout Maximizer)
Maximum Coverage Area (sq. ft.) Up to 638 per 10 lb (varies by tile size and joint width)
Recommended Joint Width 1/16-in to 1/8-in
Warranty 1-year limited
CA Prop 65 Warning Yes
Approximate Coverage Chart Provided per 10-lb bag for multiple tile sizes and joint widths (see image)

Frequently Asked Questions (FAQ):

Q: What tile types can this grout be used with?
A: It’s suitable for porcelain, ceramic, glass/mosaic, marble, granite, travertine, and natural stone.


Q: What joint size is recommended?
A: Use in grout joints from 1/16 inch to 1/8 inch.


Q: Is sealing required?
A: Yes. For increased stain resistance and flexibility, mix with MAPEI Grout Maximizer.


Q: Can it be used in wet or submerged areas?
A: Yes, including pools and spas once fully cured—allow 21 days before submersion.


Q: How much area does a 10‑lb bag cover?
A: Up to approximately 638 sq ft depending on tile size and joint width; see coverage chart for details.


Crisp, Architectural Lines in Pearl Gray

Pearl Gray grout frames tile with a refined, gallery-like precision that elevates everyday surfaces. The unsanded, ultra-smooth finish keeps the focus on your tile while lending a tailored, modern edge. Pair it with glossy white subway tile for a chic contrast or use with stone mosaics to quiet the palette. It’s the subtle, sophisticated detail that makes a space feel impeccably finished.


Choose Keracolor U in Pearl Gray to get a smooth, durable finish that elevates your tile project with professional polish.

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: 46759516553

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A
Verified Purchase
Amazon Customer
Chelsea, US
★★★★★ 5
Very practical for the price.
Color: Black
Very practical for the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
J
Jeni & Mark
Charlottesville, US
★★★★★ 4
Good for a quick backdrop
This works well for what I needed – a simple background for my kids’ online school. It’s lightweight and very easy to put together, and it stands up fine without needing to mount anything. The color is listed as black, but it’s more of a dark gray in person. Not a huge deal, just something to be aware of. It’s not super heavy duty, but it does the job for privacy and as a video backdrop. Overall, a good, portable divider that’s quick to set up and works well for light use.
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Reviewed in the United States on February 21, 2026
R
Verified Purchase
Robert A. Bertsche
Whiting, US
★★★★★ 5
Essay to assemble
Color: Grey
Very nice. Did the job the way I wanted.
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Reviewed in the United States on April 28, 2026
K
Verified Purchase
Kevin
Birmingham, US
★★★★★ 2
Low budget option
Color: Grey
Budget low quality if thats what youre looking for
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Reviewed in the United States on April 27, 2026
K
Verified Purchase
Kelly W.
Bozeman, US
★★★★★ 3
Hard to assemble
Color: Grey
This is extremely hard to put together, but once its together it is pretty good. You will need to secure it to something. It falls over.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026

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