Sika Rapid Repair Mortar



Sika Rapid Repair Mortar is an R4 fast setting cementitious repair mortar. Sika Rapid Repair Mortar is a one component fast setting cementitious repair mortar, meeting the requirements of Class R4 of BS EN 1504-3. Repairs all types of structures.

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£32.49 tax excl.

£38.99   tax incl.

Product Description

Sika Rapid Repair Mortar is a one component fast setting cementitious repair mortar, meeting the requirements of Class R4 of BS EN 1504-3.


  • For repairing all types of structures
  • Horizontal and vertical repairs
  • Hand applied repairs
  • Floor slabs and car park decks
  • For exterior and interior use
  • In place of R1, R2 & R3 mortars 

Features and benefits:

  • Pre-bagged for quality
  • Just add water
  • High early strength
  • Rapid setting
  • Contains no chloride admixtures
  • Non corrosive to steel
  • Can be overcoated

For more details please download the product data sheet from the 'DATASHEETS' tab above.

It is your responsibility to read the Product Data Sheets (available below) before you place an order and prior to application of the product. The content of this website is our best recommendation and is not advice. Coverage rates quoted are approximate, you agree that coverage depends on the condition of the substrate, surface absorption, texture and application method. We ALWAYS recommend a trial area is coated to ensure the product meets your requirements before use.

Technical Data

Typical Coverage (per coat)2.1kg per m²
The figures stated above are approximate. Please ensure you refer to all datasheets for full application information.


Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.


questions Carl crouch on 03/11/2018

What is the drying time on this product and can it be used in damp conditions


Sika Rapid Repair Mortar can be applied manually using traditional techniques. Thoroughly pre-wet the prepared substrate a recommended 2 hours before application. Keep the surface wet and do not allow to dry. Before application remove excess water e.g. with a clean sponge. The surface shall appear a dark matt appearance without glistening and surface pores and
pits shall not contain water.

Protect the fresh mortar immediately from premature drying for a minimum of 3 days using an appropriate curing method e.g. curing compound, moist geotextile membrane, polythene sheet etc.

Please refer to the Product Data Sheet for full details which can be downloaded from the 'Download' section on the product page.

questions Karl on 29/11/2016
Question: What temperature does it have to be to lay R4 rapid set mortar outside on concrete stairs

Substrate Temperature:+5°C min. / +25°C max.
Air Temperature:+5°C min. / +25°C max.

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