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

    MasterSeal 630

    Reactive methacrylate resin for sealing cracks and concrete decks

    How does MasterSeal 630 work?

    MasterSeal 630 is a very low viscosity, low surface tension, solvent-free, rapid curing reactive methacrylate resin formulated to penetrate, repair and seal cracks in concrete substrates.

    Recommended uses:

    • Exterior
    • Horizontal
    • Concrete
    • Bridge decks
    • Parking structures
    • Infrastructure

    What are the unique features of MasterSeal 630?

    • Fast curing, making MasterSeal 630 effective on highway and bridge projects, allowing for fast return of traffic flow, contributing directly to worker and driver safety
    • Can be used at temperatures ranging from 40° to 104° F (5° to 40° C), extending application season

    What are the benefits of MasterSeal 630?

    • UV resistance so exposure to sunlight does not affect product performance
    • Weather resistant, providing long-lasting service life
    • Protects against water and chloride ion ingress to prevent premature deterioration
    • Penetrating flood coat sealer to prevent moisture and ion ingress into substrate

    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 Master Builders Solutions construction product.

    LEED v4 & v4.1 Teaser Image

    LEED v4 & v4.1

    Search by product or CSI code and download up to date LEED information.

    Related Literature

    Certification Letter

    pdf (89.75 Kb)

    MasterSeal 630 Data Guide

    pdf (286.14 Kb)

    MasterSeal 630 Data Guide (French)

    pdf (322.52 Kb)

    MasterSeal 630 SDS

    pdf (275.24 Kb)

    MasterSeal 630 SDS

    pdf (215.78 Kb)

    MasterSeal 630 SDS

    pdf (360.25 Kb)

    MasterSeal 630 SDS

    pdf (473.85 Kb)