The Global Moisture-Proof Sealing Auxiliary Materials Market was valued at USD 9.8 Billion in 2025 and is projected to reach USD 16.2 Billion by 2034, growing at a Compound Annual Growth Rate (CAGR) of 5.7% during the forecast period (2024–2030). This growth is being driven by stringent global building codes focused on energy conservation, rapid infrastructure development, and the increasing demand for durable construction materials in both residential and industrial sectors.

As the construction industry evolves toward higher performance standards and sustainability, the critical role of these materials in protecting insulation and ensuring structural longevity is paramount. In this blog, we profile the Top 10 Companies in the Moisture-Proof Sealing Auxiliary Materials Industry—a mix of global chemical giants and specialized innovators shaping the future of building and industrial envelope protection.

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🔟 1. Sika AG

Headquarters: Baar, Switzerland
Key Offering: Sika® Sikaflex® Sealants, Sika® Mastic Products

Sika AG is a global leader in the development and production of specialty chemicals, including a comprehensive portfolio of moisture-proof sealing auxiliary materials. Their products are widely used for sealing joints in building envelopes, roofing systems, and industrial thermal insulation applications, providing superior adhesion and long-term durability against environmental stressors.

Sustainability Initiatives:

• Commitment to reducing CO2 emissions and increasing the share of renewable raw materials

• Development of low-VOC and solvent-free formulations

• “More Value, Less Impact” sustainability strategy focused on resource efficiency

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9️⃣ 2. Henkel AG & Co. KGaA

Headquarters: Düsseldorf, Germany
Key Offering: Loctite® Sealants, Ceresit® Building Adhesives

Henkel is a major player in the construction chemicals market, offering high-performance sealing solutions under its well-known Loctite and Ceresit brands. The company’s products are engineered for demanding applications in both new construction and renovation, ensuring effective moisture barriers for energy-efficient buildings.

Sustainability Initiatives:

• Aiming for 100% recyclable packaging by 2025

• Innovations in bio-based and circular raw materials for sealant production

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8️⃣ 3. Fosroc International Ltd.

Headquarters: Dubai, UAE (Operational HQ)
Key Offering: Nitoseal® Mastics, Conbextra® Sealants

Fosroc specializes in construction chemicals and provides a range of sealing auxiliary materials tailored for the construction and infrastructure sectors. Their products are designed to protect critical insulation systems in industrial plants, commercial buildings, and civil infrastructure from moisture ingress and corrosion.

Sustainability Initiatives:

• Focus on developing durable products that extend the lifecycle of assets

• Investments in R&D for environmentally compliant formulations

Download FREE Sample Report:
Moisture-Proof Sealing Auxiliary Materials Market – View in Detailed Research Report

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7️⃣ 4. AkzoNobel N.V.

Headquarters: Amsterdam, Netherlands
Key Offering: Flexa® Sealants, various construction mastics

While best known for its paints and coatings, AkzoNobel has a significant presence in the sealants market. The company offers a variety of sealing products that complement its coating systems, providing integrated solutions for moisture protection in building and industrial applications.

Sustainability Initiatives:

• Target to reduce carbon emissions across the value chain by 50% by 2030

• Development of water-based and eco-premium solutions

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6️⃣ 5. 3M Company

Headquarters: Saint Paul, Minnesota, USA
Key Offering: 3M™ Acrylic Sealants, 3M™ Fire Barrier Sealants

3M’s diversified technology portfolio includes advanced sealing materials known for their reliability and performance. Their products are used in a wide array of applications, from sealing expansion joints in buildings to protecting electrical enclosures and HVAC systems from moisture.

Sustainability Initiatives:

• Investment in science for circular economy solutions

• Commitment to achieving carbon neutrality by 2050

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5️⃣ 6. Pecora Corporation

Headquarters: Harleysville, Pennsylvania, USA
Key Offering: Pecora® Sealants, Pecora® Caulks and Mastics

Pecora is a leading North American manufacturer of sealants and caulks, specializing in products for the building envelope. With a focus on innovation, Pecora develops formulations that address specific challenges like UV resistance, joint movement, and adhesion to diverse substrates.

Sustainability Initiatives:

• Focus on low-VOC and green-certified products

• Continuous improvement in manufacturing efficiency and waste reduction

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4️⃣ 7. Euclid Chemical (a RPM International Inc. company)

Headquarters: Cleveland, Ohio, USA
Key Offering: MasterSeal® Sealants, Euclid Chemical Mastics

Euclid Chemical is a prominent supplier of specialty products for the concrete and masonry industries, including a robust line of sealing auxiliary materials. Their solutions are critical for waterproofing and protecting concrete structures, contributing to the longevity and performance of commercial and industrial buildings.

Sustainability Initiatives:

• Product development aligned with green building standards (LEED, etc.)

• Part of RPM’s commitment to sustainable operations

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3️⃣ 8. TKK

Headquarters: Saint-Ouen-l’Aumône, France
Key Offering: TKK Mastics, TKK Joint Sealants

TKK is a key European manufacturer of construction chemicals with a strong focus on sealing and waterproofing solutions. The company serves both the professional construction market and DIY sector with products designed for the specific climatic conditions of Europe.

Sustainability Initiatives:

• Development of products with improved environmental profiles

• Adherence to European regulations on chemical safety (REACH)

Download FREE Sample Report:
Moisture-Proof Sealing Auxiliary Materials Market – View in Detailed Research Report

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2️⃣ 9. Zhejiang Zhenshen Insulation Technology Corp.

Headquarters: Zhejiang, China
Key Offering: Insulation Mastics, Sealants for Pre-Insulated Pipes

Zhejiang Zhenshen is a significant player in the Asia-Pacific market, specializing in materials for thermal insulation systems. The company provides essential sealing auxiliary materials used extensively in industrial applications, particularly for district heating and industrial pipe networks.

Sustainability Initiatives:

• Focus on products that enhance energy efficiency

• Adapting to China’s evolving environmental standards

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1️⃣ 10. Coastal Construction Products

Headquarters: Tampa, Florida, USA
Key Offering: Coastal Mastics, Waterproofing Sealants

Coastal Construction Products is a specialist manufacturer of concrete restoration and waterproofing systems, including a range of mastics and sealants. Their products are engineered for high-performance applications in demanding environments, particularly in coastal and high-humidity regions.

Sustainability Initiatives:

• Products designed to protect and extend the life of concrete structures

• Commitment to manufacturing quality, durable solutions

Read Full Report:
Moisture-Proof Sealing Auxiliary Materials Market – View in Detailed Research Report

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🏗️ Outlook: The Future of Moisture-Proof Sealing Is High-Performance and Sustainable

The moisture-proof sealing auxiliary materials market is undergoing a significant transformation. While traditional formulations still dominate, the industry is increasingly investing in sustainable alternatives, smart material technologies, and formulations that offer enhanced durability and performance.

📈 Key Trends Shaping the Market:

• Rising demand for bio-based and low-VOC sealants in green building projects

• Integration of digital tools for precise application and performance monitoring

• Development of smart sealants with self-healing and monitoring capabilities

• Strong market growth in Asia-Pacific fueled by massive infrastructure development

Read Full Report:
Moisture-Proof Sealing Auxiliary Materials Market – View in Detailed Research Report

The companies listed above are not only providing essential protection for buildings and infrastructure—they are pioneering the sustainable and high-performance future of the construction industry.