Product Detail

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Radcon # 7 is a modified sodium silicate solution which is spray applied to cured concrete. The product penetrates and reacts with concrete to form a sub-surface barrier; waterproofing the pores, capillaries and large cracks against the ingress of water and contaminants.

Detailed Assessment



Available in 2, 5, 20 & 200 litre polypropylene containers




100 years

Expected Life

Life of the concrete to which it is applied

Indicative Costs

Contact the supplier

Purchase Options

Contact the supplier


Deionised Purified Water ~ 75%

Sodium Silicates ~ 25%

Proprietary Biochemicals 0.05%

Surfactants ~ Trace

Technical Specifications

Concrete Institute of Australia – Current Practice Note 28

National & International Standards

  • EN 1504- Products and systems for the protection and repair of concrete structures Characterised as-
  • EN1504-2: 2004-part2: surface Protection systems for concrete
  • QMS: ISO 9001:2008
  • Singapore Green Label Certificate: Environmentally Preferred Coating
  • Exova Limited, United Arab Emirates- test certificate of approval for potable water (results comply with testing limits set by both BS 6920-1:2000  & World Health Organisation standard)
  • Setsco Services, Singapore – approval for use for human consumption (results comply with BS 6920 testing limits)-

Country of Origin

USA or Australia


  • Adelaide Airport carpark – Australia – 1,300m2 – 2012
  • Atlantic Park Aquarium, Norway – All concrete on the project – 3,000m2 – 1999
  • Bahrain City Centre - waterpark on top of shopping centre – 20,000m2 – 2008
  • Dover Parkview Apartments, Singapore – Rooftops, landscape areas, swimming pools, wet areas, tennis courts – 50,000 m2 – 1997
  • Ferrara Plaza Shopping Centre, Portugal – 6,000m2 – 2007
  • Fiumicino Airport, Rome – car park – 35,000m2 – 2005
  • NUS bridge planter boxes – Singapore – 3000m2 - 2010
  • Rama VIII Bridge, Bangkok Thailand – Bridge deck and infills – 12,000m2 – 2002
  • Sidra Hospital cooling towers – Qatar – 3,400m2 – 2010
  • Singapore Fish ponds – Singapore – 1000m2 – 2012
  • Suarga Sustainable Resort, Bali – Rooftops and potable water tanks – 3,000m2 – 2012
  • Yas Hotel, Formula 1 Track, Abu Dhabi – Rooftop – 5,000m2 – 2009


Radcon #7 must be applied to fully cured, clean and very dry structural concrete, by an approved applicator at the rates specified.  Radcon #7 must be watered within 6 hours of application and two additional watering’s over the next 2 days.  Please see application manual available from manufacturer for more detailed application and preparation instructions.



Not applicable


Radcon Formula #7 is a vapour barrier, allowing vapour to permeate through the walls, preventing the build-up of moisture between elements of the building envelope.  It allows walls and roofs to breathe, thus preventing deterioration of materials from excessive moisture, rot and corrosion. Therefore not only does it increase durability of concrete itself, by reducing permeability of water and contaminants such as chlorides, but it also increases durability of other building elements and the structure as a whole.

Radcon Formula #7 is maintenance free, providing water-tightness for the life of the building, eliminating costs for repair or replacement of waterproofing membranes with inferior durability. The appearance of the concrete surface is unchanged, as Radcon is a subsurface and therefore will not be affected by surface damage from sources such as vehicle traffic and other forms of abrasion.

Radcon Formula #7 can be used in applications such as rainwater or greywater collection; and in combination with appropriate systems (eg irrigation systems or water treatment devices). It can also help reduce the demand on municipal water or in designing storm water management systems.




Product does not adversely affect health in use.  RF#7 allows vapour to permeate through the walls and prevents the growth of toxic mould in enclosed spaces.  Product is also safe to use with surfaces in contact with potable water as certified by various organizations and standards


Radcon Formula #7 is not a vapour barrier; instead it prevents the ingress of water therefore reducing humidity. It also eliminates dampness in building interiors, which can increase thermal comfort levels and controllability.

Indoor Environment Quality

Product is a water based solution and has no VOC content and thus no impact on IEQ compared to other concrete waterproofing substances based on solvents, suspensions and polymers.

Electromagnetic Radiation

Not Applicable


Non-flammable, Non-toxic


Not applicable




Emissions – Product may have limited emissions from sand and trona mining used in the production of sodium silicates.  However, product increases the durability of concrete, thereby lowering the demand for new concrete and reducing emissions from the manufacturing of virgin materials

Physical – Product provides life time waterproofing and therefore reduces waste to landfills compared to assessment comparisons,such as latex membranes, which have limited lifetimes and often have to be removed and dumped in land fill before new membrane can be applied


Emissions – No known emissions to aquatic ecosystems

Physical – No known physical ecological impacts to aquatic environments


Greenhouse Gas (GHG) - Product has low greenhouse gas emissions from

Manufacturing, efficient coverage properties (5m2 /litre), and has the potential to

Indirectly reduce GHG by minimising maintenance requirements.

Greenhouse intensity – The product has a Greenhouse intensity of 0.18 kgCO2/litre (Figures provided by manufacturer).

Transport intensity – Product is manufactured in the USA. GHG intensities for shipping product are shown below.

The table below provides land transportation greenhouse intensity figures to help calculate the greenhouse gas intensity of land transportation from shipping port.

Light commercial vehicle

Rigid Truck

Articulated Truck

0.001451kgCO2e /

0.000195kgCO2e /

0.000069kgCO2e /

Transport intensity figures sourced from Australian National Greenhouse Gas Inventory 1990, 1995 and 1999 and WWF International, Inland Navigations and Emissions, 2005.

Operational efficiency – Coverage of 5m2 /litre, sealing cracks up to 2mm.  The penetrated product remains reactive in the presence of water to provide increased autogenous healing capabilities to hairline cracking.  Increases hardness of concrete surface, thus reduces surface wear.  After correct application, no further maintenance is required to provide continuous water tightness

Re-use Efficiency – Product remains in the concrete for life.

Toxics and Pollutants – There are no known toxic or pollutant impacts on the atmosphere.

Ozone Depletion – No

Urban Heat Island Effects – Research shows that abrasions to concrete hardscapes can reduce the solar reflectance of the concrete.  RF #7 increases the hardness of concrete from 6 to 8 on the Moh’s Hardness scale, thus greatly reducing abrasions and maintaining the solar reflectance of concrete surfaces.  Typical grey concrete with Portland cement has an SRI of 35, and weathered concrete typically has an SRI around 20.  In order for a surface to reduce heat island effect it must have a minimum SRI of 29, and use of RF#7 can assist in maintaining the solar reflectance of concrete surfaces above this level.

Noise – No


Product has limited impact on biodiversity from sand and sodium carbonate mining used to make sodium silicates. However, product improves durability of concrete and structures, therefore reducing need for replacement of materials that have high biodiversity impacts.  Spills released into surface water are potentially harmful to aquatic life due to high Ph (11.7), however product will rapidly depolymerise to molecular species indistinguishable from natural dissolved silica.



Resource Efficiency

The raw materials of sodium silicates are sand and sodium carbonate, which are both abundant resources.

Embodied Fossil Fuel Energy

The product has an Embodied Energy of 2.45MJ/litre (Figures provided by manufacturer)

Embodied Water

Product is approximately 75% water, and water is used upon initial application, however no water is required for maintenance


The life of the concrete


Not applicable


Not applicable

Design for Dematerialisation

Not applicable

Design for Disassembly

Not applicable


Not applicable


Not applicable

Product Takeback Scheme

Not applicable

Extended Producer Responsibility (EPR)

Not applicable



Audits and Environmental Reporting




Environmental Policy


Social Enhancement Programs


Technology Transfer Programs


Environmental Management Systems (EMS)



Sodium Silicates: Sodium Silicates are categorised as harmful by ingestion, irritating to the respiratory system and skin and risk of serious damage to eyes, as a result, care needs to be taken when in contact. Precautions for workers such as appropriate Personal Protective Equipment (PPE) will entirely mitigate the risk of these issues being actualised. This ingredient is not an issue once applied and set.


Information last verified on: 26th September 2017



Penetron (similar product, NA in Australia), latex, rubber and epoxy concrete waterproofing membranes



Waterproofing membranes, durability

sustainability criteria satisfied

Workplace OHS, Occupant Health, Human Wellbeing

Promotes safety and security

Other Vital Signs

Expert Assessment

Documented manufacturer claims

Resource Depletion


Resource efficiency

Habitat & Biodiversity Conservation

Reduced waste generation