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    MasterSeal SL 1

    One-component elastomeric, self-leveling polyurethane sealant

    Formerly: Sonolastic SL 1

    How does MasterSeal SL 1 work?

    MasterSeal SL 1 is one component, non-priming, self-leveling elastomeric polyurethane designed for expansion joints in concrete floors and decks. Use it where flexibility as well as abrasion and puncture resistance are required.

    Recommended uses:

    • Horizontal
    • Interior and exterior
    • Expansion joints
    • Control joints
    • Pavers
    • Plaza decks
    • Industrial floors
    • Driveways/garages
    • Sidewalks
    • Decks
    • Parking structures
    • Pitch pans

    What are the unique features of MasterSeal SL 1?

    • Variety of types and sizes of packaging to help reduce jobsite waste
    • Wide application temperature range makes MasterSeal SL1 suitable for all climates
    • Excellent weatherability for long-lasting performance

    What are the benefits of MasterSeal SL 1?

    • Movement capability of ±25% allows expansion and contraction with joint movement
    • Abrasion resistant to provide for longer wearing and durability
    • Easy to gun for quick installation
    • No priming needed on most surfaces, offering excellent adhesion
    • Self-leveling, so no tooling needed

    Product Information

    Data Guide

    Certification Letter

    LEED v4 Letter

    Safety Data Sheets - Stone

    Safety Data Sheets - Gray 

    Safety Data Sheets - Limestone