Sika Damp-proofing Slurry



Sika Damp-proofing Slurry is a 1-component damp proofing and waterproofing mortar for the damp-proofing of underground buildings or waterproof lining of water sources.


  • Easy to use and apply
  • BBA approved
  • Just add water
  • Brush, trowel or spray applied
  • Fast mixing
  • Good adhesion
  • Excellent workability
  • Protects against water penetration
  • Non-toxic
Bulk Buy

£47.70 tax excl.

£57.24   tax incl.

Product Description

Sika Damp-proofing Slurry is a one part polymer modified cement based waterproof coating comprising of special cement based components and admixtures. When mixed with water a slurry or mortar material is produced for direct application to a variety of construction substrates.

Recommended Uses

  • Waterproof coating for domestic tanking basements
  • Thin layer mortar or slurry coating/lining
  • Waterproofing/damp-proofing basement and cellar walls and floors
  • Damp-proofing interior/exterior basement walls in new buildings
  • Water proofing interior/exterior concrete, renders, brickwork and blockwork structures
  • Lining of water tanks, pools, planters etc

Further benefits

  • Low odour compared to bitumen coatings
  • Consistency can be varied to suit application method
  • Protects against water penetration
  • Conforms to BS 8102:1990 as a polymer-cement based waterproof coating for Type A shallow basement structures – Grades 1, 2 and 3

For further information and application information please download the product data sheet below.

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 per mm
Touch Dry6 Hours
ApplicationBrush, Spray
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 SR Suner on 28/07/2018

Looking to identify the particular damp proofing powder by Sika that gave a light reddish brown hue following application: What would it be called, could you let me know the product name? Many thanks.


To our knowledge Sika have nothing in their range which is reddish brown and a damp proof slurry.

They have;

The only other thing that may have been used would be a red/brown sharp sand with Portland cement mixed with Sika 1 Waterproofer Liquid Admixture that will be reddish brown but that will be site batched and not a pre-bagged product.

questions Micheal on 04/04/2018

Is it strong enough to be used on garden shed floor that has no dpm to stop damp and take weight of tractor lawnmower?


Although Sika Damp-proofing Slurry can be used on the shed floor to stop damp rising through the slab, we would recommend a protective screed on top, as the Sika Damp-proofing Slurry is a thin coating (2-4mm) that could be damaged if heavy machinery (lawnmowers, etc) are thrown on top. For the protective screed we would recommend SikaScreed HardTop 60 is used at 8mm thickness.

questions robin wright building & joinery services on 10/10/2016
Question: Can a plasterboard adhesive be used on this product after it has cured to allow it to be boarded and skimmed.

Yes, as long as it is non-gypsum based.

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