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    SIKA 4A WATERSTOP 114454

    SKU: CSS34-00013
    MPN: SK4A5
    Sika 4a WaterStop 5 Litre Seals Running Water leaks
    Availability: In stock
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    SIKA 4A WaterStop 5 Litre (MPN: SK4A5) is a powerful leak-stopping cement admixture designed to seal running water leaks effectively. This liquid additive, when mixed with cement, results in mortar setting in seconds. Ideal for both internal and external use, it acts swiftly against high water pressure, making it a reliable choice for various applications.

    Key Features:

    • Leak-stopping cement admixture.
    • Seals against high water pressure with a rapid setting time.
    • Can be diluted up to 1:4 with water for versatile applications.
    • Suitable for both internal and external use.
    • Chloride-free and safe for contact with drinking water.
    • Accelerates mortar setting, providing quick and effective results.


    • DIY Applications: Mortar fast-set additive, cement fast-set additive.
    • Professional Applications: Sealing against high and moderate water pressure infiltrations in concrete, rock, or masonry. Allows for the application of Sika 1 renders, gunite, or shotcrete on structures exposed to running surface water.

    DIY Benefits:

    • Ready to use, ensuring convenience.
    • Rapid setting time for efficient results.
    • Simple mix with water and Portland cement.
    • Well-proven effectiveness in leak-stopping.
    • Contains no chlorides, making it suitable for potable water contact.

    How to Use (Step-by-Step):

    1. Mix in a gloved hand with cement.
    2. Push firmly into a weeping water hole to stop the water.

    Below are the shipping rates:

    1. Orders =< 10 Kg: £6.50

    2. Orders =< 30 Kg: £9.99

    3. Pickup: £1.99

    Note: The shipping costs for products weighing over 30 Kg differ, please contact us for the shipping rates.

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    Call Us: 0203 034 1066