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    MasterProtect H 400

    Water-based 40% silane penetrating sealer

    Formerly: Enviroseal 40

    How does MasterProtect H 400 work?

    MasterProtect H 400 is a water-based, 40% alkylalkoxysilane penetrating sealer. It provides long-lasting protection against moisture intrusion, freeze/thaw cycles, and chloride intrusion.

    Recommended uses:

    • Interior or exterior
    • Horizontal and vertical
    • Above grade
    • Parking garages
    • Stadiums
    • Bridge decks
    • Concrete highway road surfaces
    • Ramps and barrier rails
    • Many other reinforced concrete structures

    What are the unique features of MasterProtect H 400?

    • 40% silane
    • Ideal for traffic-bearing surfaces
    • Does not alter surface appearance

    What are the benefits of MasterProtect H 400?

    • Excellent penetration protecting against damage from moisture intrusion and chloride ion penetration
    • Breathable to allow interior moisture to escape without damaging sealer
    • One component for ease of application

    Product Information

    Certification Letter

    Safety Data Sheets


    MasterProtect H 400

    pdf (115.45 Kb)