Armstrong Flooring FlexStrong 1-Quart Shale Acrylic Premix Grout

Armstrong Flooring FlexStrong 1-Quart Shale Acrylic Premix Grout

Regular price $29.09

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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.

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All third party trademarks, including logos and icons, referenced on our website and product pages remain the property of their respective owners. Unless specifically identified as such, Arbor's use of third party trademarks does not indicate any relationship, affiliation, sponsorship, or endorsement between Arbor Home and the owners of these trademarks. Any references by Arbor Home to third party trademarks are to identify the corresponding third party goods.

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