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Grupo Cementos Portland ValderrivasGrupo Cementos Portland Valderrivas

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  1. Mortar - Bagged mortar - Products and recommendations - Valcol Gruesa

Mortar - Bagged mortar - Products and recommendations - Valcol Gruesa

Product range: Cement-based adhesive

Valcol Gruesa

Adhesive cement for application in thick layers.

Adhesive cement for indoor use, for laying thick layers for the application of tiles with a medium-high absorbence.

Type in line with Annex ZA under UNE EN 12004.

Scope of application
Application: indoor and outdoor use
Wall / PavementSubstrate typeTypeSizeAbsorbency
  • Brick wall.
  • Concrete blocks (with no need for mortar rendering).
  • Cement mortar base.
  • Tiles.
  • Stoneware.
  • Tile.
  • Enamel stoneware.
  • Catalan tile.
  • Earthenware tile.
  • Enamel mosaic.
Medium-small ≤ 35x35 cm (or equivalent surface area)
  • Medium or high.
  • Group II: 6% ≤ E ≤ 10%
  • Group III: E ≥ 10
  • Old pavement (terrazzo) and concrete (with no need for mortar rendering).
  • Cement mortar base.
  • Tiles.
  • Stoneware.
  • Tile.
  • Enamel stoneware.
  • Catalan tile.
  • Earthenware tile.
  • Enamel mosaic.
Medium, small
≤ 40x40 cm (or equivalent surface area)
  • Medium or high.
  • Group II: 6% ≤ E ≤ 10%
  • Group III: E ≥ 10
Supply conditions

25 kg bags protected by plastic sheet.


Grey and White.

Mixing instructions

Add approximately 6.25 litres of water per bag of VALCOL CAPA GRUESA. Mix by hand or with a slow electric mixer to obtain a smooth paste. Let stand for 5 minutes before using. Then mix again.

VALCOL CAPA GRUESA should be used within about 90 minutes of mixing

Substrate preparation

The substrate must be flat, dry, solid, clean (without dust, surface grout, loose particles or any other material that impedes good adhesion: paint, concrete release agents, etc.). In the case of very porous concrete surfaces or very hot weather, dampen the substrate before application.

Ensure compatability between adhesive and substrate. Do not apply on gypsum substrates (use VALCOL YESO instead). For low absorbency tiles, use VALCOL FLEX GRUESA. Check the product datasheets.

Tile preparation

The tile must be completely clean. Ensure that it is flat.


Mortar made from cement, graded aggregate and organic and inorganic admixtures which improve its workability, water retention, adhesion and anti-slumping properties.

Conforme Anexo ZA según norma UNE EN 12004
Initial adhesion strength (UNE EN 1348) ≥ 0,5 N/mm2 Water proportion 23% ± 1%
Tensile adhesion strength after water immersion (UNE EN 1348) ≥ 0,5 N/mm2 UNE EN 1015-6 Apparent density 1,5 ± 0,2 kg/l
Open time (UNE EN 1346) 10 min. Working temperature +5ºC a 35ºC
Working time Aprox. 90 min. Grouting time ≥ 24h 
Application thickness ≤ 15 mm
    Approximate yield 13 kg/m2 
Instructions for application

Apply in a single thick layer (on the substrate) or a double layer (on substrate and tile) between 5 and 15 mm thick with a serrated trowel.

Do not exceed the product's open time. Accordingly, application is recommended in small sections, regularly checking the adhesive's stickiness and ensuring that no film forms on the surface. Re-trowel in the event of surface film formation.

Lay the tile and press firmly to flatten the grooves in the cement.

At all times respect structural, perimeter and intermediate joints as well as grout joints. At least 1.5 mm in indoor applications. Grout 24 hours after application using VALCOL JUNTA UNIVERSAL.

Do not use the product at an ambient temperature below 5ºC or above 35ºC.


VALSEC CAPA GRUESA fulfils all the obligatory quality standards in Annex ZA under UNE EN 12004.

VALCOL adhesive cement is 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 the products made by the Cementos Portland Valderrivas Group. 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.

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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