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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

    1-800-243-6739

    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.

    Related Literature

    Certification Letter

    pdf (89.79 Kb)

    Data Guide

    pdf (169.70 Kb)

    Data Guide (French)

    pdf (318.70 Kb)

    Data Guide (Spanish)

    pdf (119.64 Kb)

    LEED v4 Letter

    pdf (170.55 Kb)

    MasterProtect H 400 Guide Spec

    doc (128.50 Kb)

    MasterProtect H 400 SDS

    pdf (213.38 Kb)

    MasterProtect H 400 SDS

    pdf (155.09 Kb)

    masterprotect-h400-gs.docx

    docx (138.51 Kb)