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    ​​MasterSeal HY 35

    MasterSeal HY 35 description:

    MasterSeal HY 35 is a one-component, fast-curing, gun-grade, elastomeric hybrid sealant. MasterSeal HY 35 is formulated with unique polymers that allow for versatile adhesion to a variety of substrates providing long term durability. It combines the best qualities of organic and silicone sealants to keep moving joints weathertight.​

    Recommended uses: 

    • Vertical or horizontal
    • Exterior or interior
    • Above grade
    • For sealing a variety of building joints against water and air intrusion Store front 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 HY 35? 

    • Strong adhesion to a variety of substrates resulting in a long term bond
    • Formulated for joint movement of ±35%
    • Resists chalking, cracking and fading to maintain long lasting weathertight seals
    • Compatible with elastomeric coatings and can be painted soon after installation
    • Easy to gun and tool, which speeds up application and makes neater joints
    • Fast curing helps to speed up jobsite production
    • Wide temperature application range
    • Non-staining formula for use on stone and other sensitive substrates
    • Meets all State and Federal VOC regulations
    • Low emitting material suitable for use in classrooms, health care facilities, private offices, and single family homes​

    What are the benefits of MasterSeal HY 35?

    • Provides long lasting protection with strong resistance to UV and weather degradation
    • Quick skinning for applications requiring wall coatings
    • Available in a wide range of colors
    • Tenaciously adheres to a wide variety of substrates and coatings for use in a wide variety of applications
    • Class 35 - ASTM C 719
    • Exhibits low modulus - 80PSI ASTM D412​​

    Safety Data Sheet (SDS)

    Find all available safety data sheets for this product.

    Product Certifications

    Generate a free certificate of conformance for a specific Master Builders Solutions construction product.

    Related Literature

    Joint Sealants Brochure

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    MasterSeal HY 35 Certification Letter

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    MasterSeal HY 35 Data Guide

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    MasterSeal HY 35 LEED v4 Letter

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    MasterSeal HY 35 Sell Sheet

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    MasterSeal HY 35 Sell Sheet (French)

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    MasterSeal Single Component Color Reference

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    Sealant Performance Selection Guide

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