MARKET INSIGHTS
Global Polysulfide Two-Part Insulating Glass Edge Sealant Dual Seal Market size was valued at USD 1.28 billion in 2025. The market is projected to grow from USD 1.35 billion in 2026 to USD 2.48 billion by 2034, exhibiting a CAGR of 7.9 % during the forecast period.
Polysulfide two‑part insulating glass edge sealant dual seal products are high‑performance secondary sealants engineered for insulating glass units (IGUs). They deliver exceptional durability, flexibility, and resistance to moisture vapor transmission, UV exposure, and temperature fluctuations. Applied as the outer barrier in dual‑seal systems, they work alongside primary seals such as butyl to preserve gas retention, structural integrity, and long‑term thermal performance in windows and facades.
Steady expansion is driven by rising global demand for energy‑efficient buildings, stringent building codes emphasizing superior thermal insulation, and growth in both residential and commercial construction. Retro‑fitting activities in mature markets and rapid urbanization in emerging economies further boost adoption. Manufacturers focus on advanced formulations offering faster curing times and improved adhesion to modern glass coatings, while maintaining broad portfolios tailored to high‑performance architectural applications.
Top 10 Companies in the Polysulfide Two-Part Insulating Glass Edge Sealant Dual Seal Market
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Sika AG (Switzerland)
Key Offering: Sika® PS Seal – a solvent‑based polysulfide sealant with superior UV resistance and long‑term elasticity.
Sika’s portfolio supports high‑performance IGU applications across residential, commercial, and high‑rise projects. The brand’s formulation delivers a reliable cure profile and a seamless, monolithic seal that maintains thermal efficiency and acoustic insulation.
In sustainability, Sika has reduced VOC emissions across its product range and invested in bio‑based additives to lower the environmental footprint.
- Advanced UV‑stable chemistry
- Low VOC, high‑performance formulations
- Global distribution network with technical support
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Dow Chemical (United States)
Key Offering: Dow® DC 809 – a fast‑curing polysulfide system compatible with low‑emissivity glass.
Dow’s dual‑seal technology is widely adopted in North American high‑rise projects. The product’s rapid cure time and compatibility with advanced glass coatings reduce construction lead times.
The company’s sustainability agenda focuses on process optimization to lower energy consumption and on developing formulations that meet stringent VOC regulations.
- Rapid cure and high bond strength
- Compatibility with low‑emissivity glass
- Integrated technical training programs
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Henkel AG & Co. KGaA (Germany)
Key Offering: TERO® Polysulfide – a high‑solid content formulation that reduces VOC emissions while delivering robust performance.
Henkel’s product line is tailored for large‑scale commercial facades and high‑rise glazing, offering long‑term elasticity and superior adhesion to modern coatings.
Henkel’s sustainability strategy includes carbon‑neutral manufacturing and a circular economy approach for packaging materials.
- High‑solid, low‑VOC chemistry
- Long‑term elasticity for large spans
- Eco‑friendly packaging solutions
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Tremco Inc. (United States)
Key Offering: Tremco Polysulfide Seal – engineered for chemical resistance in marine and coastal façades.
Tremco’s formulation is chosen for projects where exposure to salt spray and harsh climates is a concern. The sealant maintains flexibility and bond strength in high‑temperature environments.
The company promotes sustainability through research into bio‑based additives and by reducing the use of hazardous solvents.
- High chemical resistance
- Durability in salt‑spray environments
- Bio‑based additive research
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Bostik (France)
Key Offering: Bostik Polysulfide Edge – low‑viscosity blends that improve applicator ergonomics and reduce waste.
Designed for precision application in prefabricated glazing units, Bostik’s product streamlines installation and enhances product consistency.
Bostik’s sustainability initiatives focus on reducing solvent usage and increasing the proportion of recycled content in packaging.
- Low‑viscosity, easy‑to‑apply formulations
- Reduced waste through precision dispensing
- Recycled packaging materials
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PPG Industries (United States)
Key Offering: PPG DualSeal – a dual‑seal system optimized for North American high‑rise projects.
PPG’s DualSeal delivers rapid cure times and high bond strength, making it popular among architects and contractors seeking efficient, high‑performance solutions.
PPG’s environmental strategy includes reducing greenhouse gas emissions across its manufacturing footprint and investing in renewable energy projects.
- Fast‑curing, high‑strength sealant
- Optimized for high‑rise glazing
- Renewable energy integration in production
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Solvay (Belgium)
Key Offering: Solvay Polysulfide – limited‑run, high‑performance compounds tailored for stringent VOC regulations.
Solvay’s product line is used in projects where regulatory compliance and high durability are paramount, such as heritage restoration and high‑altitude installations.
The company’s sustainability focus lies in developing formulations that achieve low VOC levels while maintaining performance.
- Low‑VOC, high‑performance chemistry
- Compliance with strict regulatory standards
- Targeted application in heritage and high‑altitude projects
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H.B. Fuller (United States)
Key Offering: H.B. Fuller Polysulfide – a versatile sealant suitable for a range of glazing systems.
H.B. Fuller’s formulation is popular in both residential and commercial projects due to its balanced performance and ease of use.
The company is advancing its sustainability agenda by reducing solvent usage and exploring bio‑based raw materials.
- Versatile, easy‑to‑use sealant
- Balanced performance for diverse applications
- Bio‑based material research
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Shin‑Etsu Chemical (Japan)
Key Offering: Shin‑Etsu Polysulfide – a high‑temperature stable sealant for extreme environments.
Shin‑Etsu’s product is selected for projects requiring resilience to elevated temperatures and chemical exposure, such as industrial façades and high‑performance retrofits.
Shin‑Etsu is investing in research to lower the carbon footprint of its manufacturing processes and to increase the use of renewable feedstocks.
- High‑temperature stability
- Resilience to chemical exposure
- Renewable feedstock integration
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Wacker Chemie AG (Germany)
Key Offering: Wacker Polysulfide – a solvent‑based sealant with advanced UV‑stable chemistry.
Wacker’s formulation is widely used in large‑scale commercial facades and high‑rise projects, providing long‑term elasticity and superior adhesion to modern glass coatings.
The company’s sustainability strategy focuses on energy efficiency in production and on developing low‑VOC formulations.
- UV‑stable, solvent‑based chemistry
- Long‑term elasticity for large spans
- Energy‑efficient manufacturing
Polysulfide Two-Part Insulating Glass Edge Sealant Dual Seal Market – Full Report
Market Outlook
Across the next decade, the dual‑seal market will continue to expand as building owners seek to improve energy performance and reduce maintenance costs. The trend toward low‑VOC, high‑performance sealants is expected to intensify, driven by tightening environmental regulations and the demand for green building certifications. Innovation in formulation—particularly in UV stability and temperature resilience—will be critical to maintaining market leadership.
Future Trends
1. Customized Formulations – Manufacturers are offering color, viscosity, and composition options tailored to specific glass types and environmental conditions, enabling architects to match sealant aesthetics with performance requirements.
2. Sustainability Focus – The industry is investing in bio‑based additives, low‑VOC chemistries, and renewable energy use in production, aligning with global carbon‑neutral goals.
3. Digital Integration – Advanced manufacturing technologies, such as 3D printing of sealant components and IoT‑enabled application tools, will streamline installation and improve quality control.
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