One component high build high strength cementitious repair mortar
  • Shrinkage controlled polymer modified cementitious repair mortar.
  • Easy to apply, single component, requires only addition of water.
  • Extremely low permeability to water, providing excellent protection to steel reinforcements and host concrete.
  • Thixotropic properties allowing extra high build for vertical and overhead applications.
  • Suitable for internal and external application.
  • Water vapour permeable.
  • Suitable for use in contact with potable water.
  • Cost effective, hand applied no formwork is required.

Cempatch S is a one component polymer modified and fibre reinforced repair mortar. Cempatch S is a blend of dry powders, selected aggregates and fibres which when mixed with water produces a thixotropic mortar suitable for vertical and overhead application.


Cempatch S is available in 25 kg bags.

Thicknesses and Size Limitations

Cempatch S can be applied in a single application for sections up to 50 mm thick in overhead applications and 75 mm thick in vertical applications. Thickness should not be less than 10 mm deep in all applications.

Cempatch S repair area should not exceed 2.5 m² in single application.


Approximately 13.5 - 14 litre per 25 kg bag. (76 bags/m³).

Shelf Life

Cempatch S has a shelf life of 12 months from date of manufacture if stored at temperatures between 2°C and 50°C in original unopened bags.


  • Cempatch S complies with the requirement of EN 1504-3 as structural repair mortar of Class R4.
  • Cempatch S complies with the requirements of BS 6920 for the suitability of the product for use in contact with water intended for human consumption.


  • Repair of all types of structural concrete where high strength and extremely low shrinkage properties are required.
  • For the repair of vertical and overhead elements.
  • As a repair mortar for all structural elements in buildings, water retaining structures, industrial plants, bridges, etc.

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