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Grupo Cementos Portland ValderrivasGrupo Cementos Portland Valderrivas

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  1. Mortar - Bagged mortar - Products and recommendations - Spray mortar - Valsec Gunita

Mortar - Bagged mortar - Products and recommendations - Spray mortar - Valsec Gunita

Product range: Spray mortar

Valsec Gunita

High-performance spray mortar.

Gunite mortar for dry or wet spraying.

GUNITA VALSEC is available in a number of grades and strengths.

Supply conditions

Outdoor and indoor use. Lining swimming pools, embankments, canals, water tanks, and other structures. Building repairs.

Condiciones de suministro

Bagged (25 kg. bags)



Mixing instructions

GUNITA VALSEC is applied using a gunite spray.

The product consistency should be adjusted by testing water proportions, in both dry- and wet-gunning, in order to attain zero slump and bounce. Test the proportions before applying.

Substrate preparation

Substrates must fulfil the following conditions:

    • They must be strong, clean and stable.
    • Do not use on water-repellent substrates or on substrates with plaster, paint or plastic coating.
    • The substrate should not be excessively dry or waterlogged. In warm weather, dampen the surface before application.

The composition of GUNITA VALSEC does not attack rebar or other metallic components.


Dry blended gunite made from grey cement, selected aggregate and admixtures to provide very good flow without segregation, sag, permeability, low bounce and very good adhesion.

Technical characteristics of spray mortar
Granulometry (max. - varies depending on application) 2 mm a 10 mm Apparent density (UNE EN 1015-6) 2,1 ± 0,1 kg/l
Working time 5ºC - 35ºC Usage time (after adding water) Approximately 90 minutes
Compressive strength (UNE EN 1015-11) 25 - 40 N/mm2 Layer thickness 3-4 cm
Fire resistance A1
Instructions for application

Spray product on substrate. For optimal finish, apply a layer of uniform depth over the whole surface; it is recommended not to exceed 18 cm.

The water proportion should be constant; too much water may impair mechanical strength. Setting should be assisted by dampening for three days after application.


Industrial mortars by the Cementos Portland Valderrivas Group are produced in industrial dry mortar plants with quality assurance systems certified by AENOR in accordance with the UNE EN ISO 9001:2000 standard.

The data is based on trials performed in our control laboratory and is the result of extensive experience with VALSEC products. Variations in working conditions on site may lead to changes in performance.


Store in a dry place, protected from frost and direct sunlight. If properly stored, the product may be used up to 12 months after manufacture.


This product contains cement. Avoid contact with eyes and skin, and do not inhale the dust. Use rubber gloves and goggles when handling. Keep out of reach of children. Do not use the product at an ambient temperature below 5ºC or above 35ºC.

Note: Cementos Portland Valderrivas is not responsible for inappropriate use of the product or for unexpected outcomes arising from its usage, since the application conditions and methods are beyond our control. The customer is responsible for ensuring correct use of the product.

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