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    Sikalastic® P 691 (formerly known as MasterSeal® P 691) - A single component, solvent-based primer, moisture curing, for use below and on MasterSeal membranes 


    MasterSeal P 691 is a single component, moisture curing polyurethane primer. It contains solvents. 

    Where is MasterSeal P 691 applied?

    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. 

    What are the advantages of MasterSeal P 691?

    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


    MasterSeal P 691 TDS

    pdf (380.79 Kb)


    Oman: +968/24435800
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