Armstrong Flooring FlexStrong 1-Gallon Gypsum Acrylic Premix Grout

Regular price $72.94

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FlexStrong 1-Gallon Gypsum Acrylic Premixed Grout

Ready-to-use, sanded acrylic grout designed for uniform color and flexibility. Ideal for indoor vinyl and tile installations, it resists stains, requires no sealing, and allows light traffic in 24 hours.


Key Features:

  • Ready-to-Use Convenience: Premixed formula eliminates on-site mixing and reduces mess
  • Consistent, Uniform Color: Formulated for even color throughout the floor
  • Flexible, Crack-Resistant: Helps minimize cracking from slight floor movement
  • Low Maintenance Performance: Stain resistant with no sealing required
  • Versatile Application: Suitable for 1/16-in to 1/4-in joints; interior use

Specifications Table:

Specification Details
Series Name FlexStrong
Type Acrylic premix
Sanded/Unsanded Sanded
Color/Finish Family Off-white
Manufacturer Color/Finish Gypsum
Unit of Measure Gallon(s)
Unit of Measure Quantity 1
Maximum Coverage Area (Sq. Feet) 1080
Use Location Indoor
For Use with Vinyl Floors Yes
For Use with Bathroom Floors Yes
For Use with Bathroom Walls Yes
For Use with Kitchen Backsplashes Yes
For Use with Kitchen Counters No
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
Sealing Required No
Stain Resistant Yes (no additive required)
Freeze Resistant Post Installation No
Mold Resistant Yes
CA Residents: Prop 65 Warning(s) Yes
Warranty None
UNSPSC 30111500
Traffic Readiness Light traffic in 24 hours
Joint Widths 1/16-in, 1/8-in, 3/16-in, 1/4-in

Frequently Asked Questions (FAQ):

Q: What joint widths can this grout be used for?
A: It’s suitable for 1/16-in, 1/8-in, 3/16-in, and 1/4-in joint widths.


Q: Does it require sealing after installation?
A: No. It is stain resistant and does not require sealing.


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


Q: Is this grout for indoor or outdoor use?
A: Indoor use only; not freeze resistant post-installation.


Q: Which surfaces is it compatible with?
A: Suitable for vinyl floors and typical interior wall/floor applications like bathroom floors/walls and kitchen backsplashes; not for pools, patios, or shower floors/walls.


Quiet Gypsum, Effortless Polish

FlexStrong’s gypsum hue delivers a soft, architectural line that elevates everyday surfaces with tailored restraint. The sanded acrylic body brings a refined, matte continuity that reads clean and modern. Pair it with pale oak tones and brushed nickel to let textures whisper rather than shout. It’s the discreet finish that makes luxury feel natural and impeccably composed.


Choose FlexStrong for a ready-to-use grout that delivers uniform color, crack resistance, and no-seal simplicity—perfect for your next indoor refresh.

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