Leading Concrete Protection Systems

Densi Crete

Densi Crete | Concrete Waterproofing | Concrete Densifier

Densi Crete is a 100% pure colloidal silica designed for the protection of new or old concrete. With zero VOC, it provides exceptional concrete waterproofing to new or old concrete. Densi Crete is used to cure, waterproof, densify and purge oil etc and to seal the concrete from any contamination.

It is also used extensively in the polished concrete industry as a concrete hardener. A one coat spray on application that deeply penetrates into the matrix of the concrete and withstands a minimum of 35mtr of hydro-static pressure. It can be applied to the positive or negative side of any concrete structure.It is Australian Made and conforms to the moisture suppressant requirements as per AS1884-2012.

*Some basic facts about colloidal silica densifier. 

Advantages of Densi Crete:

  • Permanent waterproofing of concrete
  • Permanent concrete hardener & prevents dusting
  • Industries best cure & seal for freshly placed concrete
  • Purges contamination and odours from old concrete slabs
  • Increases concrete’s density and flexural strengths
  • Immediately halts contaminant ingress from any direction
  • Minimal site disruption, early access after 1 hour
  • Densi Crete significantly diminishes permeability of concrete
  • Greatly lowers and eliminates water or gas vapor emissions
  • Produces an internal permanent colloidal silicate barrier
  • Eliminates dusting potential for new or old concrete
  • Increases surface bond quality without detriment to surface traction
  • Non Toxic, Zero VOC, Non-Flammable & Environmentally Safe
Densi Crete - Concrete Waterproofing


CRACKS can be a major problem for the installer. Often installers are asked to take risks and responsibility for repairing cracks that should be referred to the engineer or builder for a recommended crack repair procedure. This is especially the case in regards to structural cracking where the void is the full depth of the concrete. Densi Crete should always be applied first before applying any crack repair system. More often than not, cracks do not penetrate the entire slab and are only micro or surface cracking caused by rapid surface drying or plastic shrinkage. These would not affect the efficiency or the result of Densi Crete. It is worth noting that Densi Crete is not designed or makes claim to repair cracks, however there are many applications where moisture has migrated through cracks of 1mm that have been permanently eliminated.

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