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Foundation Membrane

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Retaining Wall

SBS Sheet Membrane

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Prevent Rising Damp Hydro Static Epoxy:  

Hydro Static Epoxy is a two part high solids (47%), water based epoxy primer sealer used for concrete, masonry, and other cementitious substrates. The product forms a waterproofing barrier thus allowing the application of other moisture sensitive coatings. Hydro Static Epoxy is non flammable, has no odour and can be applied over green concrete. The product forms an excellent binder for dusty and eroded concrete surfaces.


Recommended Applications:


As a moisture barrier to protect against seepage and dampness.

As a primer for paints and membranes. (No over coating maximum time )

Reverse tanking.

As a coating in chemical spill areas.


Wear resistant floor coating incorporating a waterproofing membrane.

A binder for dusty and eroded concrete surfaces.

As a waterproofing membrane over green concrete.


As a waterproofing membrane / barrier in waste water drains and pits as well as retaining walls.

Hydro Static Epoxy can be used in potable (drinking) water tanks, conforms with AS/NZS 4020.2000

As a waterproofing membrane required to curtail water seepage and dampness penetration through walls, retaining walls, basement floors etc.


As part of swimming pool waterproofing system.

As a floor coating system in its own right.




Very strong cured finish, low odour, easy to use, water cleanup, excellent

adhesion to old, new and green concrete, stone, timber, masonry and

concrete blocks. High chemical resistance, prevents rising damp, safe

for use around food, water cleanup.


Technical /Performance Data:


Resin Base:  


White viscous liquid

Chemical base  

epoxy resin




3,000 cps



Grey liquid

Chemical base

polyamine adduct

Mixing ration

Equal parts of A and B by volume.

Pot life

2 hours approx., at 25 degrees C.




Surface appearance:  Semi Gloss progressing to matt over time in

exposed applications.

Recoat Time: 4 hours at 25 degrees C

Hard dry: Overnight at 20 degrees C and reducing with higher temperatures.

Complete cure: 7 days at 25 degrees C.

Minimum curing temperature: 5 degrees C.

WFT: around 300 microns.


Application typical features:


Ideal   Temperature   Range   : 15 - 30 degrees C. Do not apply below 5

degrees C and above 35 degrees C. Do not apply when humidity is above 85%. Optimum curing Temperature range is 15 - 25 Degrees C.

Will resist hydrostatic pressure up to 30 metres of water (360 micron film)

Prevents rising damp and the formation of efflorescence.

Suitable for indoor and outdoor application.

Resistant to oil, petrol, detergents, common soils and detergent cleaners.

Tolerates poorly prepared surfaces.

Suitable for potable water, conforms to AS/NZ4020.2000.

As a flooring system, Hydro Static Epoxy can accept foot traffic within

one day of application.

Dilution: The product can be diluted up to 25% with clean water for the first coat only. The amount of added water is determined by the type of substrate.

As a below ground (surface) negative side waterproofing barrier.

As a waterproofing membrane in tanking applications.


Recommended Coverage:


Dependant on surface porosity and expected service conditions. Recommended coverage as a primer is around 5 - 8 square metres per litre at a thickness of 50 microns dry coat. The coverage for waterproofing applications reduces to 3sm per litre applied in several coats. (This depends on the application system employed (brush or roller) and the porosity of the substrate). For priming, diluting Hydro Static Epoxy 20% with water is acceptable.


Product Preparation:


Add hardener to the resin (Part A) and mechanically mix for several minutes until the hardener is completely absorbed into the resin. Allow mixture to mature for 5 - 15 minutes before application. Where only part of the product pack is to be

used, it is recommended that the resin base be thoroughly mixed before decanting the amount needed. The application should be completed before the expiry of the pot working life (2 hours) at 25 degrees C.




Hydro Static Epoxy may be applied to new (green) concrete as soon as the

latter has hardened. Otherwise the general recommendations for the

preparation of concrete surfaces for over coating should be adhered to.

Each successive coat should be applied at right angle to the previous coat. Hydro Static Epoxy is tolerant with regard to surface preparation. Nevertheless, to maximise adhesion it is important that application is to sound clean substrates.


With regard to concrete, remove the laitance by mechanical abrasion, shot blasting, acid etching or diamond grinding. Old concrete should be thoroughly cleaned, preferably with high pressure water cleaning. Severe contamination with oil or grease should be removed by repeated degreasing or steam cleaning. If penetration of the pores has occurred, grinding back to clean concrete may be required.


Apply one coat for dust sealing or priming, two coats for waterproofing

two or three coats for wear resistant industrial flooring and pedestrian no slip applications. Over coating may be undertaken when the product is touch dry. Cured at room temperature (20 degrees C), Hydro Static Epoxy will be ready for foot traffic the next day. Hydro Static Epoxy has been formulated to show optimum curing and application characteristics in the temperature range 15 - 30 degrees C.


At lower temperatures the rate of cure will slow down considerably and at higher temperatures the working life of the mixed composition will shorten.

Applied as a Cement Paint, Cement Primer or Cement Filler: To repair damaged or worn concrete or as a priming base for laying concrete over old slabs. As one of the priming coats when preparing swimming pools for waterproofing.


Mix 33% cement, 33% epoxy Part A and 33% Part B. For an increase in solids, increase the amount of cement that is added. The addition of cement tends to slow the curing time of the epoxy systems with all water based coatings, it is

inadvisable to use Hydra poxy under conditions of low temperature or high humidity.


Overcoat: Depending on the weather, from 4 hours, there is no maximum time.

Clean Up: Clean brushes, roller sleaves is by means of soapy water.


Packaging: 20 litre, 10 litre and 4 litre kits.


Hazard & First Aid: Refer to Material Safety Data Sheet.  


Waterproofing FAQ

Membrane Protection Board

Waterproofing Coating

Waterproof Drainage Sheet

Waterproofing Primer

Repair and Maintenance