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    ​MasterSeal 590

    One-component, cement-based, fast-setting water-stop repair mortar

    How does MasterSeal 590 work?

    MasterSeal 590 is a one-component, quick-setting, portland-cement-based hydraulic repair mortar that instantly stops running water through holes or cracks in concrete or masonry. It expands as it sets to lock into place even under constant water pressure.

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    Recommended uses:

    • Nonmoving (static) cracks and holes with running water or moisture seepage
    • For immersion service
    • For anchoring vertical bolts
    • Basements
    • Foundations
    • Retaining walls
    • Sewers

    What are the features of MasterSeal 590?

    • Fast-setting
    • Fully hydraulic
    • Shrinkage compensated
    • One-component
    • Ready to topcoat in 15 minutes with appropriate product
    • Durable nonmetallic, non-gypsum formula
    • Formulation available for cold-weather applications

    What are the benefits of MasterSeal 590?

    • Stops running water; develops high-strength quickly
    • Sets above or below water
    • Expands to lock in place
    • Mixes easily with water only
    • Minimizes downtime
    • Maintains volume stability over time
    • Use in all seasons and climates​

    Safety Data Sheet (SDS)

    Find all available safety data sheets for this product.

    Product Certifications

    Generate a free certificate of conformance for a specific Master Builders Solutions construction product.

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