Quartz Floor Hardener – SpecChem | The Duke Company


The Duke Company is proud to carry SpecChem products including Quartz Floor Hardener. Quartz Floor Hardener is a Non-metallic Quartz floor hardener.

Quartz Floor Hardener is a mixture of finely graded nonmetallic Quartz aggregates, plasticizer and cement binder. It is an economical concrete floor hardener recommended for both interior and exterior use. When applied at the proper point in the concrete setting cycle, QUARTZ FLOOR HARDENER is worked into the concrete to become an integral part of the floor to provide a surface which is highly resistant to abrasion. QUARTZ FLOOR HARDENER is available in a natural concrete color in addition to a variety of other colors, including Light Reflective, Tile Red, French Gray, Battleship Gray and Nile Green.

The Duke Company can assist you with all your construction needs. We offer expert advice from our highly rated customer service. Furthermore, we offer the best values and fast delivery. For exceptional customer service & the fastest delivery in Upstate New York, call us for a prompt rental quote.


Quote for Rock Salt & Packaged Ice Melts from the Duke Company         

           (585) 292-9870  (Rochester NY)

          (607) 347-4455  (Ithaca NY)

          (585) 335-5970 (Dansville NY)


Features and Benefits

  • Increases impact and abrasion resistance up to four times that of plain concrete
  • Provides a high density surface that resists liquid penetration and is easy to clean and maintain
  • Minimal surface dusting
  • Exterior/interior application
  • Non-fading, non-rusting colors, (Light Reflective, Tile Red, French Gray, Battleship Gray and Nile



Coverage: 0.5 to 1.5 lbs per sq. ft.
(Recommended minimum application rate for colored
hardeners is 1.5 lb per sq-ft)
As a general guide to floor and slab construction, refer to American Concrete Institute Standard 302.

All work should be done under roof if at all possible. Job conditions that affect drying/setting time also affect the hardener application time. Use experienced workers for the job size. For most applications, a mechanical spreader that drops the dry shake directly onto the fresh concrete is recommended.

Preparation: Calculate the number of bags required for a given area as per the coverage rate required. Place concrete to finish grade level and compact with a wooden bull float.

Special Conditions: When slab is subjected to any condition that causes rapid surface drying such as low
humidity, wind, sunlight, etc., spray SpecFilm onto surface just after bull floating.

Placing: Application of the hardener depends on: slump of concrete, job site conditions affecting drying,
and the coverage of the hardener. Perimeter sets quicker than interior. Be aware of this and apply to edges first.

Dry-shake surface hardeners are designed to be placed after bleeding. After concrete has been screeded, tamped and floated, apply 2 /3 of coverage ratio on first application. Allow the dry-shake to darken, absorbing the moisture from the slab, then wood bull float or machine at the appropriate time. Immediately follow with the remaining 1/3 and machine float. Final finish after the slab stiffens.

To achieve maximum appearance and performance, float and finish the dry-shake so as to maintain the material on the top surface of the slab, fully integrated into the base concrete.

Edges should be worked by hand, keeping trowel as flat as possible. Blistering can occur when trowel blades have been raised too early. Re-trowel with blades lowered to remove blisters.

DO NOT ADD WATER to aid in finishing. This will weaken the surface. A hard troweled surface is recommended.

Curing: Apply an approved SpecChem ASTM C-309 compliant curing compound after final troweling.

Download Helpful Information:


Quartz Floor Hardener is packaged in:

  • 50 lb triple lined bag (22.7 kg)

The Duke Company
 can assist you with your construction needs. We offer expert advice from our highly rated customer service. Furthermore, we offer the best values and fast delivery.


Quote for Rock Salt & Packaged Ice Melts from the Duke Company         

           (585) 292-9870  (Rochester NY)

          (607) 347-4455  (Ithaca NY)

          (585) 335-5970 (Dansville NY)

The Duke Company ships nationwide and throughout New York, or contact us for convenient pick-up locations including:

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Text ‘DUKESALT’ to ’55469’ to receive text messages regarding our hours, extended hours, schedule changes and discount opportunities.

Industries we serve:


High Rises,
Residential & Commercial
high-rise construction, power plants,
Building Maintenance

By David Szydlowski

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The Duke Company
299 Jefferson Road
Rochester, NY 14623
Phone: (585) 292-9870


The Duke Company
7 Hall Road
Ithaca, NY 14850
Phone: (607) 347-4455


The Duke Company
10131 Poags Hole Road
Dansville, NY 14437
Phone: (585) 335-5970