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Grupo Cementos Portland ValderrivasGrupo Cementos Portland Valderrivas

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  1. Mortar - Bagged mortar - Product range - Bricklaying - Valsec Mortero Refractario

Mortar - Bagged mortar - Product range - Bricklaying - Valsec Mortero Refractario

Product range: Masonry mortar

Valsec Mortero Refractario

Mortar with high strength at high temperatures.

Hydraulic setting mortar for use in construction.

Scope of application

Refractory brick walls and rendering for domestic barbecues, ovens and chimneys. Outdoor and indoor use.

Supply conditions

Bagged (20 kg. bags).



Mixing instructions

Bagged MORTERO REFRACTARIO VALSEC should be mixed in a cement mixer. Add 3 litres of water per bag of mortar (0.12 l/kg). Mix to obtain a smooth consistency.

Refractory mortars should be used within about 60 minutes of mixing.

Substrate preparation

Substrates must fulfil the following conditions:

  • They must be clean and dampened.
  • They must be strong and stable.
  • There should not be any residues of gypsum, paint, waterproof coatings, etc.
Instructions for application

Spread the mortar with a trowel. Place the tile on the layer of fresh mortar and press firmly.

Technical characteristics
Type CR-20 Apparent density 2,0 kg/l
Approximate yield 20 kg/m2 Mortar usage time ≤ 60 min.
Granulometry 0-2 mm Compressive strength after drying for 24 hours and at 110ºC 20 N/mm2
Maximum temperature for wall exposure 700ºC Compressive strength after drying for 5 hours and at 1000ºC 2,5 N/mm2

Industrial mortar by the Cementos Portland Valderrivas Group is produced in plants with a certified quality assurance system which conforms to 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.

© Cementos Portland Valderrivas 2018. All rights reserved.