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    ​​MasterSeal AWB 900

    Liquid flashing membrane

    MasterSeal AWB 900 description

    MasterSeal AWB 900 is a one-component elastomeric material for use as a flexible flashing membrane. It can also be used to prepare sheathing joints for subsequent application of MasterSeal AWB 660, MasterSeal AWB 665 or MasterSeal AWB 660 I air/water-resistive barrier membranes.

    Recommended uses:

    • For use as a membrane for flashing rough openings, and as a detailing compound for preparing sheathing joints for application of an air/water-resistive barrier membrane.
    • Acceptable substrates include ASTM C1177 sheathing, plywood, pressure treated wood, OSB, steel and aluminum.

    What are the unique features of MasterSeal AWB 900?

    • Can be applied to damp substrates
    • Withstands rainfall immediately after application
    • Fast cure and tack-free time
    • Bonds to a wide range of substrates
    • Does not contain solvents, phthalates or isocyanates​

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