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    ​MasterSeal NP 100

    High performance hybrid sealant

    How does MasterSeal NP 100 work?

    MasterSeal NP 100 is formulated with unique Master Builders Solutions polymers that allow for versatile adhesion to a variety of substrates while accommodating high movement and providing long term durability. MasterSeal NP 100 is a high performance, low modulus, high movement, non-sag, fast curing, and ready-to-use hybrid sealant. It combines the best qualities of organic and silicone sealants to keep moving joints weather-tight.

    Recommended uses:

    • Vertical or horizontal
    • Exterior or interior
    • Above grade
    • For sealing a variety of building joints against water and air intrusion
    • Joints with extreme movement
    • Storefront systems
    • Expansion joints
    • Panel walls
    • Precast units
    • Aluminum, vinyl and wood window frames
    • Fascia
    • Parapets
    • Sanitary applications
    • Roofing

    What are the unique features of MasterSeal NP 100?

    • Superior adhesion to a variety of substrates resulting in a long term bond
    • Low modulus, formulated for joint movement of ±50%
    • Resists chalking, cracking and fading to maintain long lasting weather-tight seals
    • Wide temperature application range
    • Available in six standard colors
    • Meets all state and federal VOC regulations

    What are the benefits of MasterSeal NP 100?

    • Compatible with elastomeric coatings and can be painted soon after installation
    • Easy to gun and tool, which speeds up application and makes neater joints
    • MasterSeal 905 accelerator available for use in cold climate applications to help speed initial cure
    • Fast curing helps to speed up jobsite production
    • Non-staining formula for use on stone and other sensitive substrates