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    ​MasterSeal NP​ 150

    Low-modulus, non-sag, elastomeric, hybrid sealant

    Former​ly: Sonolastic​ 150 VLM

    How does MasterS​eal NP 150 work?

    MasterSeal NP 150 is a high performance, very low-modulus, high-movement, non-sag, fast-curing, hybrid sealant.

    Recommended uses:

    • Vertic​​al or horizontal
    • Exter​ior or interior
    • Above grade
    • Joints with high movement
    • In place of silicone sealants
    • Store front systems
    • Expansion joints
    • Panel walls
    • Precast units
    • Aluminum, vinyl and wood window frames
    • Fascia
    • Parapets
    • Sanitary applications

    What are the un​​ique features of MasterSeal NP 150?

    • Wide temperature application range
    • Non-staining formula for use on stone and other sensitive substrates
    • Available in ProPaks to reduce jobsite waste and lower disposal costs
    • Meets all state and federal VOC regulations

    What are the benefit​s of MasterSeal NP 150?

    • Superior adhesion results in a long-lasting bond, helping to reduce call backs
    • Low modulus to accommodate for joint movement (100% extension in EIFS joints with little stress on bond line)
    • Can be painted with elastomeric coatings soon after installation
    • Easy to gun and tool, speeding up application
    • Weather resistant for long-lasting weather tight seals
    • Fast-curing helps to speed up jobsite production

    US / Canada​ Product Information

    Data​​​ Guide

    Data Guide (French)

    Certification Letter


    LEED Letter

    LEED v4 Letter

    Technical Bulletin

    Color Reference - MasterSeal NP 150

    Color Reference - MasterSeal Single Component

    Safety D​​​ata Sheets (SDS):

    MasterSea​​l NP 150

    MasterSeal NP 150 - Aluminum Gray

    MasterSeal NP 150​ - Black

    MasterSeal NP 150 - Limest​​one

    MasterSeal NP 150 -​​​ Medium Bronze

    MasterSeal NP 150 - O​ff-White

    MasterSeal NP 150​​​ - Redwood Tan

    MasterSeal NP 150 - Special ​​Bronze

    MasterSeal NP 150 -​ Stone

    MasterSeal NP 1​​50 - Tan

    MasterSeal NP 150 - W​​hite

    MasterSeal NP 150 -​​​​ Part B

    USA - English

    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 BASF construction product.

    Related Literature

    Certification Letter

    pdf (55.38 Kb)

    Color Reference

    pdf (92.48 Kb)

    Data Guide

    pdf (270.46 Kb)

    Data Guide (French)

    pdf (367.36 Kb)

    Guide Spec

    doc (113.69 Kb)

    Joint Sealants Brochure - Spanish

    pdf (749.31 Kb)

    LEED Letter

    pdf (107.34 Kb)

    LEED v4 Letter

    pdf (69.96 Kb)

    MasterSeal NP 150 Tech Bulletin

    pdf (288.46 Kb)

    zip (56.75 Kb)