Please login with your username and password.


Can’t remember your accounts password?

Can't access your account?

Select your language

This page is available in the following languages:

    Please select your location

    SikaSet® Waterplug (formerly known as MasterSeal® 590) - Fast setting mortar to plug active water leaks in concrete and masonry

    How does MasterSeal 590 work?

    MasterSeal 590 is a blend of hydraulic cements, well graded sands and additives supplied in dry powder form. It requires only the addition of clean water to produce a ready-to-use, ultra-rapid setting, plugging mortar.

    Recommended uses:

    • Stops active water or seepage under pressure through joints, cracks and holes in concrete or masonry, where a normal mortar would be washed away and resin would not bond.
    • For sealing cracks and construction joints in reservoirs and other water-retaining structures.
    • For instant sewer connections.
    • For rapid anchoring of bolts, conduits, pipes, railings, sanitary equipment, etc.
    • Joint filling, pointing between concrete segments in concrete and brick tunnels, sewage systems, pipes and mines.

    What makes MasterSeal 590 a unique solution?

    MasterSeal 590 is:


    • Chloride-free, will not promote corrosion of reinforcement.
    • Expands as it sets to ensure a permanent watertight seal.
    • Mechanical characteristics similar to concrete.

    Cost effective

    • Ultra-rapid setting for instant leak plugging.
    • Blocks water, no injection equipment required.

    Easy to apply

    • Only to be mixed with water.

    Environmentally friendly

    • Cement based, contains no toxic elements.


    MasterSeal 590_MS

    pdf (107.38 Kb)

    MasterSeal 590_TDS

    pdf (340.94 Kb)


    Oman: +968/24435800
    More Locations & Distributors