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    MasterSeal P 691

    is a fast curing, single component, moisture curing, clear polyurethane adhesion promoting primer. MasterSeal P 691 contains solvent.

    MasterSeal P 691 Field of Application

    MasterSeal P 691 is designed for use as an adhesion promoting primer on MasterSeal membranes. Its uses include the application of a new membrane to an aged membrane e.g. in repair applications. It can also be used on aged membranes when renewing or repairing the UV protective top coat. MasterSeal P 691 can also be used as a primer on sand broadcast epoxy primers prior to the application of a spray applied membrane in applications where the membrane is permanently exposed to water.

    ​​MasterSeal P 691​ Features and Benefits

    • Excellent adhesion to aged membranes especially in applications where the membrane is permanently exposed to water
    • Rapid cure
    • Long re-coating interval
    • Low viscosity
    • Low consumption
    • Easy to apply​


    TDS_MasterSeal P 691

    pdf (173.30 Kb)