

We no longer stock this product, but can recommend Sika 1 Pre-Bagged Render Mortar as a great alternative.
Please note: it is important to check that any alternative product is suitable for your requirements, as our suggestion is given in good faith but without warranty. If you are in any doubt please first contact our technical team on 0113 2455450 (option 2) or send a message to [email protected] where we will be happy to discuss your project.
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.
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.
Features and Benefits
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.
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.
![]() | Question:
My new extension was rendered in 2017 with Sika 1. Now the wall most exposed to the rain shows strong discoloration in particular when wet. What happened here and can you recommend a remedy? Nb i could send photos of the situation but I couldn’t include them here. |
Answer from Rawlins’ Technical Team:
Thank you for the enquiry, please send more information and pictures to [email protected] | |
![]() | Question:
Good evening can you please tell me weather this product is breathable , allso is sika finishing mortar breathable many thanks |
Answer from Rawlins’ Technical Team:
The Sika 1 Waterproofing System for walls is breathable. | |
Sika 1 Render Mortar is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.
Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.
Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.
All delivery costs below are excluding VAT