Sika 1 Render Mortar



Sika 1 Render Mortar is the second layer of the Sika 1 Structural Waterproofing System. When mixed with Sika 1 Waterproofer Liquid Admixture, it produces part of a complete structural wall render system.


  • Proven resistance to hydrostatic back pressure
  • Fully bonded waterproofing barrier
  • Apply to wet substrates
  • Use on -/+ water pressure situations
Bulk Buy

£28.66 tax excl.

£34.39   tax incl.

Product Description

Sika 1 Render Mortar is part of the Sika 1 Structural Waterproofing System and is the second layer of the wall render system. They boast 90 years of proven experience in the structural waterproofing field.

Supplied in pre-batched brown banded bags for easy identification and use. When mixed with Sika 1 Waterproofer Liquid Admixture it produces part of a complete structural waterproofing system for walls, contains no impurities and can be applied internally and externally for brick, concrete and stone substrates. 

Sika 1 Render Mortar is pre-batched kiln dried blends of specially graded aggregates and cements packaged in the appropriate mix ratios for optimum application performance and durability. When mixed with the diluted Sika 1 Waterproofer Liquid Admixture it provides part of the multi-coat system for structural waterproofing render systems.

Recommended Uses

  • Internal waterproofing of below ground structures to meet the requirements of BS8102–2009 Grades 1-3
  • Waterproofing of swimming pools and other water retaining structures
  • Waterproofing of basements, cellars and vaults
  • Waterproofing of tunnels

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)2m² @ 6mm per 25kg
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.


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