Mortar made of aluminous cement, special aggregate and additives which make it resistant to high temperatures.

Masonry mortar resistant to high temperatures

Instructions for use

  1. The surfaces must be rough, hard, stable, clean, and free
    from dust, paint and released agents.
  2. Mix preferably in an electric mixer at low rpm, adding
    water gradually until you obtain a smooth, lump-free
  3. Leave the paste to stand for 2 minutes and mix again
    before applying. Moisten the mortar 24 hours after
Warnings and recommendations
  • Do not apply onto plaster.
  • Do not apply this product when frost or rain are
  • Do not apply at temperatures below 5ºC or above 35ºC.
  • It is advisable to moisten absorbent or very hot surfaces
    before applying the product in order to prevent the
    mortar from becoming overly dry or less strong.
  • This product is ready to mix with water. Do not add
    any kind of additional substance which may alter its
  • Use within 1 year of packaging date. Store the product
    in its original sealed packaging in a dry, covered place
    protected from humidity.
Technical Features

Available Formats

Capafire is available in 25 kg paper sacks with moisture-proof plastic lining, dispatched on shrink-wrapped pallets weighing a total of 1,600 kg (64 sacks).

  • For laying, grouting and assembling refractory bricks (fire bricks). Common tasks where the use of refractory mortar is required. Masonry tasks when in contact with aggressive water, containing sulphates or with a pH of more than 5.


The recommendations for use are based on our own knowledge and experience. The technical data provided have been obtained under normal laboratory conditions, and may therefore vary according to the environmental conditions in the place where the product is used. As the application conditions are beyond our control, the information provided here does not imply that the company accepts responsibility for any variations.


Declaraciones Medioambientales

Concienciados con el medioambiente