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    ​MasterProtect H 400

    Water-based 40% silane penetrating sealer

    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
    • 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

    Direct contact

    Master Builders Solutions Technical Support

    Construction Systems


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    Related Literature

    Certification Letter

    pdf (89.79 Kb)

    Data Guide

    pdf (169.70 Kb)

    Data Guide (French)

    pdf (278.71 Kb)

    MasterProtect H 400 Guide Spec

    doc (132.00 Kb)

    MasterProtect H 400 SDS

    pdf (300.43 Kb)

    MasterProtect H 400 SDS

    pdf (205.13 Kb)

    MasterProtect H 400 SDS

    pdf (316.84 Kb)


    docx (151.72 Kb)