Vandex Uni Mortar 1Z
A cementitious waterproofing and repair mortar:
• against active or passive water pressure
• for horizontal and vertical surfaces
• resistant to frost and deicing salts
• applicable by mortar gun
PRODUCT DESCRIPTION
VANDEX UNI MORTAR 1 is a cementitious, ready-mixed
waterproofing and repairing mortar.
AREAS OF APPLICATION
- Substrates: concrete, masonry and natural stonework.
- waterproofing and protection against water and
moisture. - horizontally and vertically applicable mortar for waterproofing, levelling and reprofiling.
- fillets for wall-floor junctions.
- foundations, slabs, retaining walls, etc.
- drinking water structures.
PROPERTIES
VANDEX UNI MORTAR 1 is applied in layers of 6 to12 mm
thickness in one working cycle. This material is substantially
resistant to abrasion and deicing salt and thus capable to
take strong mechanical wear. Due to its composition, based
on cement and quartz with graded grain size distribution,
and selected additives. VANDEX UNI MORTAR 1 is waterproof. It is durable and resistant to frost after setting, and at
the same time vapour permeable. VANDEX UNI MORTAR 1
is tested for use in contact with drinking water.
SURFACE PREPARATION
The substrate to be treated must be sound and even, open-pored, roughened and its surface free from voids, large
cracks or ridges. Any adhesion-reducing substances like
bitumen, oil, grease, remains of paint or laitance must be
removed by suitable means.
Water leaks must be stopped e.g. with VANDEX PLUG.
Thoroughly moisten the substrate, it must be damp but not
wet at the time of application. Any surface water on
horizontal surfaces must be removed.
Brick- and blockwork substrates
Any remaining plaster, render or other substances that
could inhibit bonding must be removed back to the
substrate. Gypsum, remains of wood or other foreign
material must be removed by appropriate means. Loose
pointing must be routed out and the substrate cleaned
thoroughly.
MIXING
Mix 25 kg of VANDEX UNI MORTAR 1 with 3–4 litres of
tap water in a clean container for at least 3 minutes to a
lump-free, homogeneous consistency. Use a mechanical
mixer.
APPLICATION
VANDEX UNI MORTAR 1 is applied with trowel or suitable
spray equipment.
Apply a minimum of 6 mm (approx. 12 kg/m²) and a
maximum of 12 mm (approx. 24 kg/m²) in one working
cycle.
For small areas such as coves, fillets, local repairs and
shutter tie holes VANDEX UNI MORTAR 1 may be applied
in layer thicknesses exceeding the above value.
Pour VANDEX UNI MORTAR 1 over horizontal surface, then
compact and strike off. After initial hardening it can be
trowelled or provided with a broom finish to increase the
non-skid quality. Apply VANDEX UNI MORTAR 1 to vertical
surfaces like normal render. If several coats are required it
is recommended to apply the next coat whilst the previous
coat is still damp at the surface.
The waiting time before applying the following coat
depends on local climatic conditions such as humidity,
temperature, etc. The previous coat must be textured by
suitable means whilst still plastic to form a key.
To maintain workability of the material do not add water,
simply re-stir the mixture.
Trowel application
First a scratch coat is applied for maximum adhesion to the
substrate. Ensure that all cavities in the substrate are filled
in order to exclude any trapped air.
Spray application
VANDEX UNI MORTAR 1 can be applied with a suitable
fine mortar spraying device.
For maximum spray pattern it should be possible to adjust
volume of product as well as air pressure and volume. The
nozzle diameter is approx. 10 mm.
The first layer of Vandex is applied in a circular motion with
the spray nozzle held at a 90° angle to the substrate. The
material is then flattened and trowelled or keyed for a
further layer.
Do not apply at temperatures below +5 °C, or to a frozen
substrate.
Product specification sheet
Vandex Uni Mortar 1Z product specification sheet opens in a new windowManufacturer
Vandex
