Silex® HARD


Silex® HARD is a neutral pH formula utilizing proprietary chemically reactive hydrophilic technologies that allow the solution to penetrate deeply and enable self-sealing properties.  As Silex® Hard is applied it immediately begins chemically reacting within the concrete’s matrix forming insoluble cementitious compounds that effectively self-seal micro pores and hairline cracks.  These fast-reacting hydrophilic properties close off pathways for moisture from any direction, therefore allowing the concrete itself to become the water barrier; a hydrophobic surface. 

Silex® HARD densifier chemically produces a significantly harder, denser floor, substantially increases the abrasion resistance and provides a durable dust-proofed concrete surface which helps to reduce maintenance costs.

Technical Data Sheet

Safety Data Sheet


  Higher Level of Abrasion Resistance
  Significantly Increases Surface Hardness & Density
  Excellent Water Repellent
  Higher Gloss Readings
  Prevents ASR

  Enhances & Protects Integral Color & Dyed
Blocks Efflorescence

Available In: 5g Buckets, 55g Drums & 275g Totes
Coverage Rates: 400 to 600 Sq.ft. /gal.*

*Due to the wide variety of substrates variations in concrete quality, porosity, job site conditions, temperatures and relative humidity will affect coverage rates and drying times.


  • Compliant with all US VOC regulations including US EPA, OTC, LADCO, SCAQMD & CARB
  • LBC Red List Complian
  • Contributes to LEED v4 Credits