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  1. Mortar - Bagged mortar - Products and recommendations - Valcol Gran Formato Sobre Yeso

Mortar - Bagged mortar - Products and recommendations - Valcol Gran Formato Sobre Yeso

Product range: Cement-based adhesive

Valcol Gran Formato Sobre Yeso

Adhesive cement for application in thick courses on large format substrates.

Adhesive cement for laying thick courses for the application of medium-high absorbency tiles. Especially for gypsum-covered brick or large format substrates. Excellent adhesion on plaster-based adhesive cement

Scope of application
Aplicación: interior y exterior
Wall / PavementSubstrate typeTypeSizeAbsorbency
  • Wall
  • Walls made of large ceramic bricks
  • Gypsum-covered brick
  • Brick wall.
  • Concrete blocks (with no need for mortar rendering).
  • Cement mortar base.
  • Plaster
  • Tiles.
  • Enamel stoneware.
  • Tile
  • Stoneware
  • Catalan tile.
  • Enamel mosaic.
  • Earthenware tile.
Medium, small
≤40x40 cm(1)
(or equivalent surface area)
  • Medium or high.
  • Group II: 6% ≤ E ≤ 10%
  • Group III: E ≥ 10%
  • Pavement
  • Cement mortar base.
  • Concrete (with no need for mortar rendering).
  • Terrazzo
  • Ceramic.
  • Stoneware.
  • Enamel stoneware.
  • Tile
  • Enamel mosaic.
  • Catalan tile.
  • Earthenware tile.
Medium, small
≤50x50 cm(1)
(or equivalent surface area)
  • Medium or high.
  • Group II: 6% ≤ E ≤ 10%
  • Group III: E ≥ 10

(1) Apply adhesive to both tile and substrate for large sizes and/or weights of more than 40 kg/m2.

Supply conditions

25 kg bags protected by plastic sheet.


Grey and White.

Mixing instructions

Add approximately 6.5 litres of water per bag of VALCOL YESO GRAN FORMATO. 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 YESO GRAN FORMATO 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.

For low absorbency tiles, use VALCOL YESO GRAN FORMATO.

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.

For product technical characteristics, download the datasheet (above).

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


VALSEC YESO sobre gran formato fulfils all the obligatory quality standards under Annex ZA of 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. When stored adequately, it may be used for up to 12 months from the date of 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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