Vandex Uni Mortar

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 water- proof. 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. 

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.