SKU: 15013990903

Armstrong Flooring FlexStrong 1-Quart Shale Acrylic Premix Grout

Sale price$26.18 Regular price$29.09
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Ships within 48 hours · Estimated delivery Sep 27 - Oct 2

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Description

Armstrong Flooring FlexStrong 1-Quart Shale Acrylic Premix GroutFlexStrong Shale Acrylic Premix Grout, 1 Quart Ready to use, sanded acrylic premix grout in Shale from Armstrong Flooring. Designed for uniform color and flexible performance, ideal for indoor vinyl floors and kitchen backsplashes with no sealing required. Key Features: Ready to Use Convenience: Premixed formulano mixing required for faster, cleaner installs Color Consistency: Uniform shale color across the floor for a professional finish Flexible,

FlexStrong Shale Acrylic Premix Grout, 1-Quart

Ready-to-use, sanded acrylic premix grout in Shale from Armstrong Flooring. Designed for uniform color and flexible performance, ideal for indoor vinyl floors and kitchen backsplashes with no sealing required.


Key Features:

  • Ready-to-Use Convenience: Premixed formula—no mixing required for faster, cleaner installs
  • Color Consistency: Uniform shale color across the floor for a professional finish
  • Flexible, Crack-Resistant: Formulated to minimize cracking from slight floor movement
  • Low Maintenance: Stain resistant and no sealing required for easier upkeep
  • Versatile Application: Suitable for 1/16-in to 1/4-in joint widths; indoor use on vinyl floors and kitchen backsplashes

Specifications Table:

Specification Details
Series Name FlexStrong
Type Acrylic Premix
Sanded/Unsanded Sanded
Manufacturer Color/Finish Shale
Color/Finish Family Black
Unit of Measure Quart(s)
Unit of Measure Quantity 1
Maximum Coverage Area (Sq. Feet) 84
Use Location Indoor
For Use with Vinyl Floors Yes
For Use with Kitchen Backsplashes Yes
For Use with Kitchen Counters No
For Use with Bathroom Floors Yes
For Use with Bathroom Walls Yes
For Use with Fireplace Exteriors No
For Use with Garage Floors No
For Use with Garage Walls No
For Use with Patios No
For Use with Pools No
For Use with Shower Floors No
For Use with Shower Walls No
Freeze Resistant Post Installation No
Mold Resistant Yes
Sealing Required No
Stain Resistant Yes (no additive required)
CA Residents: Prop 65 Warning(s) Yes
Warranty None
UNSPSC 30111500
Joint Widths Supported 1/16-in, 1/8-in, 3/16-in, 1/4-in

Frequently Asked Questions (FAQ):

Q: Is sealing required after installation?
A: No—this grout is stain resistant and does not require sealing.


Q: How soon can the floor be used after grouting?
A: It is ready for light traffic in 24 hours.


Q: What joint widths does it support?
A: Use with 1/16-in, 1/8-in, 3/16-in, and 1/4-in joint widths.


Q: Where can I use this grout?
A: Indoor use only; suitable for vinyl floors and kitchen backsplashes. Not recommended for showers, pools, patios, or garages.


Q: What is the coverage?
A: Up to 84 sq ft, depending on tile size and joint width.


A Modern, Moody Grout That Elevates Every Tile Line

FlexStrong in Shale brings a rich, graphite hue that crisps the outline of each tile, lending a tailored, contemporary vibe. Its uniform color and subtle texture make grout lines feel intentional—like couture piping for your floors and backsplashes. Pair it with pale terrazzo or warm wood-look vinyl for striking contrast. This effortless, premixed formula is a quiet luxury essential that refines spaces with calm sophistication.


Choose FlexStrong Shale to get a durable, ready-to-use grout that delivers consistent color and a polished finish—without the hassle of sealing.

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: 15013990903

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C. V.
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Size: Medium, Color: (601) Bittersweet Pink / Stone / Stone
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Reviewed in the United States on February 24, 2026
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Pretty Colors to Encourage Me to Walk!
Size: X-Large, Color: (601) Bittersweet Pink / Stone / Stone
Hum. Extra large does not seem extra large. I have a slender but size 10-10.5 foot. Will keep but was hoping for a looser fit. Bought to match an Under Armour walking outfit.
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Reviewed in the United States on May 16, 2026
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Omaha, US
★★★★★ 5
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Size: X-Large, Color: (601) Bittersweet Pink / Stone / Stone
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Reviewed in the United States on March 6, 2026
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The bookish health nut
Cuba, US
★★★★★ 5
Absolutely Essential for Any Athlete or Gym-Goer!
Size: Large, Color: (035) Steel / White / Black
I recently purchased the Under Armour Unisex-Adult Training Cotton No Show Socks 6 Pack, and I must say, they've become an indispensable part of my workout gear. Here's why these socks are a game-changer: Comfort Above All: These socks are incredibly comfortable. Made from a blend of cotton and synthetic fibers, they provide just the right amount of cushioning without feeling bulky. Whether I'm running, lifting weights, or doing yoga, my feet feel supported yet free. No Show, All Go: True to their name, these socks stay perfectly in place without slipping down into my shoes. This is crucial for maintaining a professional look at the gym or during sports activities. No more embarrassing sock peeks or having to constantly adjust them. Durability: For the price, these socks hold up remarkably well. I've washed them multiple times, and they haven't lost their shape or elasticity. They've survived the rigors of both my workouts and laundry day. Breathability: The material mix allows for excellent breathability. My feet stay dry and cool, reducing the chances of blisters or discomfort during long sessions. Pack Value: Getting six pairs in one go is fantastic. It means I always have a fresh pair ready, which is perfect for someone like me who works out frequently. Fit for All: These socks fit true to size and are designed to be unisex, making them a versatile choice for anyone looking to upgrade their sock game. If you're in the market for socks that combine comfort, performance, and style, look no further. Under Armour has nailed it with these no-show socks. They've quickly become a staple in my wardrobe, and I find myself reaching for them over any other sock I own. Highly recommended for anyone serious about their fitness routine or just wanting reliable, high-quality socks. 5 out of 5 stars - These socks are a must-have!
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Reviewed in the United States on August 25, 2024
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DLynn
Dallas, US
★★★★★ 5
My Husband’s Favorite Socks
Size: Large, Color: (035) Steel / White / Black
The Under Armour Unisex Training Cotton No Show Socks have become my husband’s absolute favorite socks—and he’s pretty picky about socks. Comfortable Fit: They’re soft, comfortable, and fit well without being too tight. They stay in place all day with no slipping or bunching. Great for Everyday Wear: Perfect for workouts, walking, and everyday use. They provide just the right amount of cushioning without feeling bulky. Durable & Long-Lasting: These hold up really well through regular wear and washing. They keep their shape and don’t wear thin quickly. Reliable Under Armour Quality: You can tell they’re well made. Consistent quality that matches what you expect from Under Armour. Overall Impression: When someone has a favorite sock and keeps reaching for it, that says everything. These are comfortable, durable, and dependable.
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