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Grupo Cementos Portland ValderrivasGrupo Cementos Portland Valderrivas

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  1. Mortar - Bagged mortar - Products range - Briclaying - Valsec Bloque Vidrio

Mortar - Bagged mortar - Products range - Briclaying - Valsec Bloque Vidrio

Product range: Masonry mortar

Valsec Bloque Vidrio

Mortar designed specifically for laying glass blocks.

Scope of application

Construction or grouting of walls made of solid or hollow glass blocks.

Indoor and outdoor use.

Bagged (20 kg. bags).



Mixing instructions

Add approximately 7 litres of water per bag of VALSEC BLOQUE DE VIDRIO. Mix by hand or with a slow electric mixer to obtain a smooth paste. Let stand for 5 minutes before using. Then mix again. Use within 90 minutes of mixing.

Substrate preparation

The glass blocks must be clean. The blocks should be anchored mechanically to the adjoining wall, and dilation/separation joints should be provided. They must be clean and dampened.

Instructions for application

Spread the mortar on the glass block. Use spacers to ensure a homogeneous grout line of at least 10 mm. Reinforce the wall with galvanized steel rods (4-6 mm), but they must not come into contact with the glass. The horizontal rods should be interlaced with the vertical rods. Once the mortar begins to set, smooth and finish with a rubber trowel. Do not use if there is a risk of rain or frost. Work at temperatures between 5ºC and 35ºC.

Characteristics (Download datasheet)

VALSEC BLOQUE DE VIDRIO fulfils all the quality standards under Annex ZA of the UNE EN 998-2 standard, as certified by AENOR, and is subject to quality control under UNE EN 1015. VALSEC masonry mortars are produced in industrial dry mortar plants with quality assurance systems certified by AENOR in accordance with the UNE EN ISO 9001 standard.

The data is based on trials performed in our control laboratory and is the result of extensive experience with the products made by the Cementos Portland Valderrivas Group. Different conditions on site may lead to variations in some of the data.


Bagged VALSEC BLOQUE DE VIDRIO mortar should be stored in a dry place, protected from frost and direct sunlight. When stored adequately, it may be used for up to 12 months from the date of manufacture.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.

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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