Hardens and consolidates dry brittle surfaces at depth and protects against water and stains.

1. Hardener- Consolidant
Guard Hardener® WO provides deep-down consolidation for low-adhesion mineral materials. It solves the main causes of deterioration and rebuilds the destroyed crystalline mineral network in order to provide the treated material with its original mechanical properties.

2. Water/Oil repellent
Guard Hardener® WO has water and oil repellent properties which provide long-lasting protection against water ingress, oil and all types of stains.


  • Consolidates and crystallises brittle materials at depth
  • Protects against water, oil and stains
  • Invisible: does not change colour
  • Delays ageing and makes maintenance easier
  • Dry porous and slightly porous materials: natural stone, brick, slate, etc.
  • Facades and floors
  • New or old
  • Internal and external



0.5 to 10 m² per liter

Technische fiche

Technical data sheet
Medical safety data sheet

Fiche technique
Fiche de sécurité