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Vandex
super white waterproofing is
used to waterproof and protect concrete. It consists of white or
grey Portland cement, a compound of active chemicals and specially
treated quartz sand. It is supplied in 25kg bags in a powder form
and contractors only need to add water before applying it. Vandex
super white can be applied against pressure and non-pressure surfaces.
For
instance. You can apply it on the inside of a water tank (pressure)
and on the outside wall of the water tank (non-pressure). The most
common areas Vandex is applied to is basement retaining walls, concrete
slabs, swimming-pools, channels, bridges, water retaining structures
and construction joints. So how does Vandex work? When it is applied
to a concrete surface the active chemicals combine with the free
lime and moisture in the capillary tract, to form insoluble crystalline
complexes. The crystals block the capillaries and minor shrinkage
cracks in the concrete to prevent any further water ingress .
The
Vandex will protect the concrete against sea water, aggressive ground
water, waste water and certain chemical solutions. Vandex super
white is approved though to use in contact with potable water and
is therefore perfect to waterproof storage tanks, reservoirs and
water towers. All concrete that is waterproofed with Vandex must
be clean and have a porous surface to which the Vandex can bond
to. If the surface has grease or dirt on it remove it with high
pressure water jetting, wet sand blasting or a wire brush. If there
is cracks in the surface it must be chased out and treated with
Vandex Uni Mortar 1.
When
you apply the Vandex use a masonry brush and paint on the first
coat. The second coat must then be painted onto the first coat while
it is still green. This method is used when applying the Slurry
consistency. When the Dry powder consistency method is used the
specified amount of Vandex Super is distributed in powder form through
a sieve and toweled into the freshly placed concrete once this once
this has reached initial set.
In conclusion
Vandex super white is a superior product to use when waterproofing
concrete. Whether you use it on pressure or non-pressure surfaces
it will perform at it's best. Make sure your surfaces are clean
and porous and apply the recommended coats required and your surface
will be leak free and waterproofed for years to come.
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