Sika 1 Waterproofer
    • Sika 1 Waterproofer

    Sika 1 Waterproofer Liquid Admixture

    SK1WAT25
    SIK1526

    Sika 1 Waterproofer Liquid Admixture is an aqueous solution containing complex colloidal silicates. In the presence of water these swell and block the capillaries and pores in the applied sand/cement renders, screeds and mortar to provide an effective barrier against the transmission of liquid water.

    Features and Benefits

    • Proven for more than 90 years
    • For use with Sika pre-batched system mortars
    • For brick, concrete and stone substrates
    • Compatible with OPC and SRC
    • Can be applied against live water infiltration
    • Wall render and floor screed application
    • Can be used internally and externally

    Colour
    Size

    £86.95 (incl. VAT)

    £72.46 (ex. VAT)

    Quantity
    Please choose your colour
    Available for Delivery (See Delivery Options Below)

    Description

    Sika 1 Waterproofer Liquid Admixture is an aqueous solution containing complex colloidal silicates. In the presence of water these swell and block the capillaries and pores in the applied sand/cement renders, screeds and mortar to provide an effective barrier against the transmission of liquid water.

    Sika 1 Waterproofer Liquid Admixture is used with Sika 1 Structural Waterproofing System mortars which are pre-bagged, kiln dried blends of specially graded aggregates and cements packaged in 4 grades at the appropriate mix ratios for optimum application performance and durability. When mixed with the diluted Sika 1 Waterproofer Liquid Admixture they provide the multicoat components for the structural waterproofing systems.

    Sika 1 Waterproofer Liquid Admixture can be added in measured quantities to Sika mortars to create;

    • Structural waterproof renders to resist water pressure below ground
    • Structural waterproof screeds to resist water pressure below ground
    • Waterproof renders to resist moisture and dampness above ground level
    • Internal waterproof tanking
    • General waterproofing admixture for mortar

    Features and Benefits

    • Proven for more than 90 years
    • For use with Sika pre-batched system mortars
    • For brick, concrete and stone substrates
    • Compatible with OPC and SRC
    • Can be applied against live water infiltration
    • Wall render and floor screed application
    • Can be used internally and externally

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

    Product Details
    1526-269991

    Data sheet

    Manufacturer
    Sika
    Interior / Exterior Use
    Interior & Exterior
    For Use On
    Brick
    Concrete
    Stone
    Water Tanks
    Manhole
    Mortar
    Screeds
    Basements
    Swimming Pools
    Tunnels
    Culverts
    Pack Size
    5L
    25L
    Base Type
    Hybrid
    Suitable For Use On
    Swimming Pools
    Suitable For Use On
    Basements
    Suitable For Use On
    Water Retaining Structures
    Suitable For Use On
    Brick
    Suitable For Use On
    Mortar
    Suitable For Use On
    Screeds
    Suitable For Use On
    Tunnels
    Suitable For Use On
    Concrete
    Suitable For Use On
    Manholes
    Suitable For Use On
    Stone
    Manufacturer
    Sika
    Components
    1K
    Usages
    Waterproofing
    Product Usage Type
    Additive
    Product Range
    Sika 1
    Attachments
    Download


    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 simon saunders on 2021-10-13 13:37:26
    Question: 

    I need to build a 1 block high wall, 225mm thick to form a bund around a pump. The floor is a concrete slab. Can I use Sika-1 as the mortar for the blocks both vertical and horizontal beds and the 'base bed' between the floor and the block? Can I then coat the inside of the bund with Sika Damp Proof Slurry? The pump is for water and develops a slight leak at times. Thank You.

    Answer from Rawlins’ Technical Team: 

    Thank you for the enquiry, we have contacted you directly for more information.

    questions Valerie Harle on 2019-05-04 12:51:33
    Question: 

    Can I use Sika1 to waterproof block paving driveway.

    Answer from Rawlins’ Technical Team: 

    Sika 1 as a system does provide waterproofing but on a floor you would need to apply a 30mm screed for full waterproofing. We would recommend Hydron Mona-Guard Nhance be applied to block paving to provide a water and stain repellent finish.

    questions Dave on 2019-03-14 10:22:18
    Question: 

    Hi which sika waterproofing admixture do I need to mix with my concrete sub base to stop water penetration? As you sell a ready mixed ve Dion of the sika1 also. Also mixing ratios for either product and quantity needed to order area as follows. 5m x 4m 150mm depth concrete. 5m x 4m 75 mm depth screed. Thanks

    Answer from Rawlins’ Technical Team: 

    As a general waterproofer the Sika 1 Waterproofer Liquid Admixture should be applied at a ratio of 0.75 litres per 25kg bag of cement. We don't have a ready mixed version of this product.

    questions peter on 2018-11-21 12:14:03
    Question: 

    what is the mix ratio for 3:1 sand and op cement for repointing eng. brickworrk?

    Answer from Rawlins’ Technical Team: 

    Sika 1 Waterproofer Liquid Admixture can be added to a sharp sand and portland / good quality cement in order to make a waterproof render or screed. Typically this mix will be either 3:1 or 4:1.

    questions Ron Killick on 2018-10-23 11:44:53
    Question: 

    Can Sika 1 Waterproofer Liquid Admixture simply be painted onto a damp wall/floor and seal them against moisture transfer. This is for a garage so does not have to be absolutely waterproof just help reduce ingress. Thanks

    Answer from Rawlins’ Technical Team: 

    No, something such as Sika Damp-proofing Slurry may be more suited to your application.

    questions Mike  on 2018-02-21 12:33:02
    Question: 

    Can you use this with ordinary sand and cement to form the same barrier

    Answer from Rawlins’ Technical Team: 

    Sika 1 Waterproofer Liquid Admixture can be used as an additive for a sand and cement render, please download and view the TDS (Technical Data Sheet) for the product available from the 'Download' section above.

      

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    IMPORTANT SHIPPING & DELIVERY INFORMATION

    Sika 1 Waterproofer Liquid Admixture 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