Please login with your username and password.


Can’t remember your accounts password?

Can't access your account?

Select your language.

This page is available in the following languages:

    Please select your location


    MasterProtect HB 400DOT: Water-based, high-build, 100% acrylic, waterproof coating for DOT applications

    Formerly: Thorocoat DOT

    How does MasterProtect HB 400DOT work?

    MasterProtect HB 400DOT is a water-based, high-build, 100% acrylic, waterproof coating for above-grade concrete, masonry, stucco, and EIFS.

    Recommended uses:

    • Exterior
    • Vertical and overhead surfaces
    • Above grade
    • Protecting and waterproofing

    What are the unique features of MasterProtect HB 400DOT?

    • Available in custom state DOT colors
    • Resists wind-driven rain; helps prevent water penetration into the substrate
    • Breathable to allow water vapor to escape
    • Excellent adhesion, bonds securely to substrate for long-term durability
    • Excellent hiding power
    • Low VOC content for broad compliance across all regions

    What are the benefits of MasterProtect HB 400DOT?

    • UV resistance provides excellent color retention for a long-lasting, attractive finish
    • Fine texture helps improve aesthetics of irregular substrates
    • Effective carbon dioxide diffusion barrier, protects embedded steel from corrosion
    • Freeze/thaw resistant suitable for cold climates

    US / Canada Product Information

    Data Guide

    Data Guide (French)

    Data Guide (Spanish)

    Certification Letter

    LEED Letter

    Direct contact

    Master Builders Solutions Technical Support

    Construction Systems


    Safety Data Sheet (SDS)

    Find all available safety data sheets for this product.

    Product Certifications

    Generate a free certificate of conformance for a specific BASF construction product.

    Related Literature

    Certification Letter

    pdf (98.04 Kb)

    Data Guide

    pdf (106.35 Kb)

    LEED Letter

    pdf (106.85 Kb)