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£40.25£146.00 (exc VAT)

High performance water-repellent for protecting all porous walls, facades and roofs
  • Protects against Water, staining and oil
  • High penetrating power and quick efficiency
  • Anti-dusting action
  • Non Film-Forming: lets a surface breathe
  • Odourless, invisible and voc-free
  • UV and frost resistant
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ImperGuard, Walls & Roof Waterproofing
ImperGuard® is a high performance water-repellent product for protecting porous walls, facades and roofs from humidity.

ImperGuard® penetrates deeply into the pores of the material to make it impermeable and so prevent the harmful effects of humidity: infiltrations, acid rain, erosion, freeze/thaw cycle, moss and lichen growth, efflorescence, saltpetre, etc.

The chemical composition of the solution also enables it to perform as well as a solvent-phase product. The water-repellent properties of ImperGuard® are therefore developed very quickly (within a few hours to 3 days).

ImperGuard® also has an anti-dusting action and hardens the surface of materials.

ImperGuard® is a penetrating, non-film-forming product. The substrate remains permeable to air and water vapour. Completely colourless after application, it modifies neither the appearance nor the nature of the treated material. In addition, it is completely resistant to UV light and does not yellow with age.

Advantages and Characteristics

  • Excellent water-repellent properties.
  • Quick and long-lasting efficiency (> 5 years)
  • Prevents penetration by water.
  • Limits the development of efflorescence.
  • Limits moss and lichen growth.
  • Prevents frost/thaw damage.
  • Anti-dusting action.


  • Non-film-forming – allows substrate to breathe.
  • UV-resistant – does not yellow.
  • Invisible after drying.
  • Ready and easy to use.
  • Easy to use.
  • Non corrosive and non flammable.

Coverage and Use


3 to 6 m² per litre

Average figures given for reference only.


ImperGuard® can be used indoors and out on vertical surfaces and roofs. It is ideal for the water-repellent treatment of porous materials such as natural stone, concrete, rendering, brick, terracotta, cement…

ImperGuard® is used for new works or refurbishment.

Chemical Nature

Mixture of siliconate, silicate and silane.