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Henry Company Logo
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  • Commercial
    • Products
      • Air & Vapor Barriers
        • Fluid-Applied, Impermeable AVB
        • Fluid-Applied, Permeable AVB
        • Self-Adhered, Impermeable AVB
        • Self-Adhered, Permeable AVB
        • AVB Flashing
        • AVB Primers & Adhesives
        • AVB Sealants
      • Polyiso Insulation
        • Wall Insulation
      • Roof Coatings
        • Acrylic
        • Aluminum
        • Asphalt
        • Silicone
        • Spray Polyurethane Foam
      • Roof Coatings Accessories
        • Repair Fabric & Reinforcement
        • Mastics, Cements, & Sealants
        • Adhesives & Primers
      • Roof Membranes & Accessories
        • Adhesives, Primers, & Sealants
        • Built-Up Roofing (BUR)
        • SBS-Modified
        • Self-Adhered
        • Underlayments - Steep Slope
      • Single-Ply Roofing
        • EPDM Roofing
        • TPO Roofing
        • Roofing Insulation & Accessories
      • Waterproofing
        • Above-Grade Waterproofing
        • Below-Grade, Post-Applied
        • Below-Grade, Pre-Applied
        • Damp Proofing
        • Traffic Coatings
        • Cold Fluid-Applied
        • Membranes
      • Waterstops
        • Injectable
        • Hydrophobic
    • Systems
      • Roof Restoration Systems
      • Integrated Building Envelope Systems
    • Product Search
    MiraPLY Received Early Thumbs-Up on Nvidia Project

    Blog

    MiraPLY Received Early Thumbs-Up on Nvidia Project

    Read More
    Maximizing School District Roofing Budgets: The Power of Restoration

    Blog

    Maximizing School District Roofing Budgets: The Power of Restoration

    Read More
    New Orleans Convention Center Replaces 41-Acre Roof with Henry SPF Roofing System

    Project Profile

    New Orleans Convention Center Replaces 41-Acre Roof with Henry SPF Roofing System

    Read More
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        • Asphalt Patch & Repair
      • Housewrap & WRBs
        • Mechanically-Fastened WRB
        • Rainscreen
        • Self-Adhered WRB
        • WRB Accessories
        • WRB Sealants
      • Insulation
        • Continuous Insulation
        • Denim Insulation
        • DIY Insulation
      • Residential Roof Coatings
        • Roof Coatings - Aluminum
        • Roof Coatings - Asphalt
        • Roof Coatings - Pigmented & Clear
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      • Window & Door Flashing
        • Liquid-Applied Flashing
        • Mechanically-Fastened Flashing
        • Self-Adhered Flashing
    • Systems
      • 1-2-3 Moisture Control System
    • Product Search
    Sturbridge Lakehouse Showcases Blueskin® VPTech™

    Project Profile

    Sturbridge Lakehouse Showcases Blueskin® VPTech™

    Read More
    HUD's Latest Energy Standards: A Builder's Guide

    Blog

    HUD's Latest Energy Standards: A Builder's Guide

    Read More
    Air Sealing Strategies for Success: Enhancing Home Performance Across Climate Zones

    Blog

    Air Sealing Strategies for Success: Enhancing Home Performance Across Climate Zones

    Read More
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      • MT212 Maritape
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        • HE026 Asphalt Coating
        • HE087 Duratuff
        • HE094 Crack Sealer
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        • DuroFlex 3405 Sealant
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  • Moistop Sealant

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Henry® Moistop® Sealant

Moistop Sealant Cartridge Image
Moistop Sealant Install Image
Photo shoot - MA project house

Henry® Moistop® Sealant

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Completely Compatible Moisture Resistance

Designed to make weatherization easier and save time on the jobsite, Henry Moistop Sealant is both a moisture-resistant sealant and a flashing. Fully compatible with all Henry products, Moistop Sealant delivers excellent adhesion and moisture resistance on a wide range of building materials, surfaces, and structures.

Sizes Available:

10.1 fl. oz

20 fl. oz

Henry Moistop Sealant

  • Product Details
  • Technical & Installation
  • Related Products
  • Sustainability

Product Details

Moistop Sealant can be used as both a sealant and flashing, providing a multi-tasking solution for improved weatherization effectiveness and jobsite efficiency. It is an advanced polymer engineered to be compatible with virtually all building materials. Moistop delivers excellent adhesion and moisture resistance to prevent door and window water leaks, and the expensive callbacks they cause. It also provides flexible, gap-free flashing even around curved intrusions and can fill construction joints up to ½ inch thick.

When used as part of the Henry 1-2-3 Moisture Control System™, Moistop Sealant is backed by an industry-leading 15-year warranty. Repairs are covered for both materials and labor with a single point of contact.

  • VERSATILE APPPLICATION

    Delivers excellent adhesion and moisture resistance on a wide range of building materials, surfaces and structures.

  • FLEXIBLE, GAP-FREE FLASHING

    Can be used around curved intrusions, and fill construction joints up to 1/2" thick.

  • PRODUCT APPROVALS & CERTIFICATIONS

    Exceeds AAMA 808.3 and ASTM C920 standards.

Certification

Technical & Installation

  • Moistop Sealant | Tech Data Sheet (TDS)

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  • Moistop Sealant | Safety Data Sheet (SDS)

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    • Moistop Sealant | Guide Spec

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    • Henry 15-Year, 1-2-3 Moisture Control System Warranty

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    • Henry Standard Product Warranty

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    Sustainability

    • ForeSight Green Product Summary

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