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Hydrostatic Pressure Resistant Liquid Membrane:  

 
Cystoflex is a two part waterproofing membrane comprising of a liquid component of selected polymers and a powder component of selected cements, fillers and aggregates.
When mixed together to form a brushable or rollable slurry it provides a strong, hydrostatic pressure resistant, flexible waterproofing membrane with particular application in immersed or ponding situations.

Cystoflex     complies with AS/NZS 4020:2002 Testing of Products For Use In Contact With Drinking Water - Australian Water Quality Centre Report Number 4007/92.1595  

    

Cystoflex  is suitable for many waterproofing applications, and is particularly useful for areas requiring hydrostatic pressure resistance and immersed applications including water retaining structures such as concrete tanks, ponds, pools, fountains and water features.  Cystoflex  is suitable for contact with drinking water.
Cystoflex  is also suitable for use on:
Retaining walls
Planter boxes
Wet areas
Roofs (if top coated with Azcoflex)   

 

Suitable Surfaces :   

    

Cystoflex  is suitable for use on the following correctly prepared and primed surfaces:
Concrete
Filled block work (filling should be vibrated to ensure the absence of voids)
Brick or rendered brick
FC sheeting
Timber   

 

Specification :   

    

The information contained in this data sheet is general in nature and refers only to the usual use of the product and it should not be construed to be a complete specification. Site conditions vary which may require the use of other products . For specific projects a written specification should be sought.   

    

Limitations :   

    

Cystoflex  is flexible and can withstand normal building movement but it has limited elongation and hence will not tolerate excessive movement or cracking of the substrate. Cracks and gaps must be independently sealed and waterproofed.   

    

Benefits and Advantages :   

    

Suitable for contact with drinking water.   

Designed hydrostatic pressure resistance.   

Suitable for immersion in water.   

Two pack yet flexible.   

Quick drying.   

Can be applied to damp surfaces.   

Can be topped, tiled or coated.   

Easy and safe to use.   

Suitable for use in confined areas.   

Compatible with most tile adhesives.   

     

Precautions in Use :   

    

The product is considered low risk if used properly as intended.
Observe safety precautions on packaging and MSDS.
Powder contains cement and until fully wet then inhalation should be avoided. Wear suitable mask.
The use of rubber gloves and eye protection is recommended.   

     

Priming and Preparation :   

    

Good preparation is essential. Surfaces must be sound, stable, dry, clean and free of dust, loose, flaking, friable material and substances that may diminish adhesion. 
Exposed steel must be treated for rust and coated with suitable anti-corrosive and anti-rust treatments (as for concrete spalling).
Concrete surfaces that are rough, pitted, contain blow-holes and honey-combed areas must be suitably filled with high tensile strength, non-shrink mortar and allowed to fully cure.
Cracks, gaps and holes must be properly treated and filled. Block work, which should have been properly filled with concrete and vibrated to ensure that no voids are present within the block work, must be properly pointed up.
The surface should be primed. The preferred primer is  Primeseal applied at 3 to 4 sq.m. per litre and allowed to dry. Undiluted  Cystoflex  liquid may be used as a primer applied at 3 to 4 sq.m. per litre and allowed to dry.
Timber roofs must be primed with Primeseal.
Primers may be applied to slightly damp surfaces (but free from ponded or running water) and the surface must become dry to allow the product to dry but this is not recommended as curing will be prolonged.
Excessively porous surfaces may require an additional coat of primer.
To small ponds, tanks, fountains, roofs and wet areas, apply a suitable elastomeric polyurethane joint sealant to all corners to forms a strong fillet and to bases of penetrations and around waste outlets.
To corners of large tanks a high tensile strength, non-shrink mortar should be applied to form a fillet thereby eliminating 90 degree angles.   

     

Application 

Mixing should be done with a mechanical stirrer. Hand mixing is not sufficient.
Whilst stirring, the powder should be slowly added to the liquid. Stir until the mixture is smooth, lump-free and homogenous. The product's viscosity should be suitable for horizontal and vertical surfaces but the thickness can be increased by the addition of no more than 3% of Portland cement by weight.
If mixture sets before use, do not try to reconstitute by adding water or more liquid. This product should be discarded.
Application is usually by brush and roller but can be squeegeed, trowelled or sprayed. The final dry film thickness should be at least 1.5mm to 3mm depending on whether the waterproofing is applied in 2 or 3 coats. Allow previous coat to fully cure/dry before applying the next. In confined areas such as tanks, the humidity in the tank may inhibit proper curing and artificial ventilation (preferably warm air) should be blown into the tank.
Small ponds, fountains, retaining walls, wet areas (follow procedure as stated in AS3740), roofs and concrete slabs: Apply two coats at 0.8 litre per sq.m.per coat, i.e. 1.6 litres per sq.m. combined.
Tanks: Apply a minimum of three coats at the rate of 1.0 litres per square metre per coat, i.e. 3 litres per sq.m. combined so that the dry film thickness is at least 2mm.
Swimming pools: Apply a minimum of three coats at the rate of 1.0 litres per square metre per coat, i.e. 3 litres per sq.m. combined so that the dry film thickness is at least 2mm. The membrane should be suitably rendered with a suitable bonding agent incorporated in the render then tiled with a tile adhesive designed for immersion.   

    

Coverage   

The stated average coverage rate may vary depending upon type, condition, porosity, texture of the surface and application technique.   

    

Crystoflex: 1 kg (0.8 litres) per sq.m. per coat.
Primers: 3 to 4 sq.m. per litre per coat.   

    

Colours   

Crystoflex is untinted and is greyish in colour.   

    

Storage   

Product should be stored in cool, dry area.
Do not use if bag is damaged.   

    

Clean Up   

If wet, ensure that run off does not enter the drains.

Cured product should be  shoveled    into suitable containers and disposed of in accordance with local council regulations


 

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