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    MasterSeal AWB 661HP - Vapor Permeable Air/Water-Resistive Barrier Membrane

    What is MasterSeal AWB 661HP?

    MasterSeal AWB 661HP is a one-component, liquid applied vapor permeable air/waterresistive barrier based on Silica Fortified Rubber™ chemistry. It is chemically identical to, and performs the same function as, Enershield HP, which is replaces. This waterproof, resilient coating may be spray-, roller-, or brush-, or trowel- applied directly to
    approved above grade wall substrates. It provides excellent secondary moisture protection behind most wall claddings including brick, siding and metal panels.

    Where can MasterSeal AWB 661HP be applied ?

    As a HIGH vapor permeable, air and water barrier membrane for high rise and low rise residential, commercial, institutional buildings.
    As an integral part of building designs to reduce heating and cooling costs during the life of the building.
    For use over the following above ground, exterior wall substrates:
    • In-situ concrete
    • Precast concrete
    • Cement board​
    • Concrete blocks
      • Aerated
      • Hollow
      • Solid


    JRef - MasterSeal AWB 661HP.pdf

    pdf (22.89 Kb)

    MasterSeal AWB 661HP Application on concrete or block work_MS

    pdf (109.85 Kb)

    MasterSeal AWB 661HP Application on framing and sheathing boards_MS

    pdf (109.91 Kb)

    MasterSeal AWB 661HP_TDS

    pdf (214.88 Kb)


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