Burnished Concrete Liquid Floor Hardeners/Densifiers

Duro-Nox HSBack to product index

Water-based, lithium and potassium blended hybrid silicate

Ideal for use as a liquid floor hardener, densifier and sealer.

Note: Choose Options to Buy Online

Find a Distributor
Additional Details


Duro-Nox HS, offers all the advantages of Duro-Nox, but with a hybrid silicate formulation that eliminates the costly and environmentally damaging rinse removal step required with sodium silicate floor hardeners.

When Duro-Nox HS chemically reacts with free limes present in concrete, calcium silicate hydrate gels are formed and become a permanent part of the floor. Treated floors have increased hardness and abrasion resistance. Additionally, floors treated with Duro-Nox HS exhibit an attractive sheen that increases over time through routine maintenance and use.

Additional Application Notes: 

  • Ideal for use in warehouses, distribution centers, retail stores, restaurants, indoor malls, office complexes, food processing plants, dairies, breweries, food lockers, slaughtering plants, animal pens and bottling plants.
  • Use in the diamond grinding/polishing process. Duro-Nox HS will consequently restore, densify, harden and seal older interior concrete floors.
  • Excellent for use to protect, seal and consequently improve the appearance of concrete countertops.


  • Up to 850% increase in abrasion resistance and surface hardness.
  • Does not require rinsing or flushing with water following product application.  Therefore, it eliminates the costly disposal of hazardous (alkaline) rinse water.
  • Increases the impact and wear resistance of concrete floors. As a result, it is ideal where high volumes of pedestrian and/or forklift traffic are expected.
  • Provides permanent protection to the depth of penetration.
  • Reduces the porosity of concrete surfaces. This improves the chemical and stain resistance to most organic acids. As a result, there is better protection from alkalis, deicing salts, foods, fats, oils and grease.
  • Densifies, strengthens, seals and dustproofs soft or dusty concrete floors.
  • Improves the adhesion of applied line stripes, paints and coatings to soft or weak concrete surfaces.
  • Optimum performance and life. As a result, it outlasts conventional membrane-forming acrylic cure and seal type products.
  • Breathable. Does not contribute to floor sweating.
  • Complies with USDA requirements for incidental food contact.
  • Increases floor surface light reflectivity. In other words, it increases overall interior brightness.
  • Surface gloss appearance continues to increase through regular use and cleaning.
  • Above all, Duro-Nox HS treated surfaces will never peel or flake.
  • Green Engineered™ – better for health and the environment.
  • Meets all federal and state VOC requirements.

DURO-NOX HS is a water-based, lithium and potassium blended hybrid silicate. In addition, it is also ideal for use as a liquid floor hardener, densifier and sealer.


Resource Downloads

Product Data Sheet
English PDS - Duro-Nox HS    |   French PDS - Duro-Nox HS    |   Spanish PDS - Duro-Nox HS

Safety Data Sheets
English SDS - Duro-Nox HS

Additional Documents
Duro-Nox HS Sell Sheet