The Global PU Waterstops Market was valued at USD 1.21 Billion in 2024 and is projected to reach USD 1.75 Billion by 2030, growing at a Compound Annual Growth Rate (CAGR) of 6.3% during the forecast period (2024–2030). This growth is being driven by increasing infrastructure development, rising investments in water management systems, and the accelerating adoption of advanced waterproofing solutions across construction, bridge engineering, and transportation sectors.

As the construction industry prioritizes durability, sustainability, and long-term structural integrity, the focus shifts to the key manufacturers who are driving innovation, material science, and reliable sealing technologies. In this blog, we profile the Top 10 Companies in the PU Waterstops Industry—a mix of chemical giants, specialty manufacturers, and waterproofing pioneers shaping the future of global infrastructure protection.

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🔟 1. Sika AG

Headquarters: Baar, Switzerland
Key Offering: Sika® Waterbar, SikaFuko® Injection Systems, Polyurethane Sealants

Sika AG is a global leader in specialty chemicals for construction and industrial manufacturing, with a robust portfolio of waterproofing solutions. Their PU waterstop systems are renowned for high elasticity, chemical resistance, and durability in demanding environments such as underground structures, water treatment plants, and tunnels.

Innovation and Sustainability Initiatives:

• Development of low-VOC and environmentally friendly polyurethane formulations

• Investment in R&D for faster-curing and high-performance waterstop systems

• Commitment to carbon-neutral operations by 2050

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9️⃣ 2. MBCC Group (Formerly BASF Construction Chemicals)

Headquarters: Mannheim, Germany
Key Offering: MasterSeal waterstops, PU injection resins, Crack injection systems

MBCC Group offers comprehensive solutions for concrete repair and waterproofing, serving infrastructure projects worldwide. Their MasterSeal range includes hydrophilic and hydrophobic PU waterstops designed to handle dynamic joint movements and hydrostatic pressure.

Innovation and Sustainability Initiatives:

• Advanced polymer technology for enhanced adhesion and flexibility

• Focus on sustainable construction products with extended service life

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8️⃣ 3. Fosroc International Ltd.

Headquarters: Dubai, UAE
Key Offering: Nitoseal PU Waterstops, ChemCement solutions, Construction chemicals

Fosroc provides specialized chemical solutions for the construction and mining industries. Their Nitoseal range of PU waterstops is engineered for critical applications in civil engineering, offering excellent resistance to water, chemicals, and weathering.

Innovation and Sustainability Initiatives:

• Tailored solutions for extreme climatic conditions

• Global technical support and engineering services

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7️⃣ 4. GCP Applied Technologies Inc.

Headquarters: Alpharetta, Georgia, USA
Key Offering: Premcrete® waterstops, VERIFI® in-transit concrete management, Cement additives

GCP is a leading provider of construction products and technologies that improve the quality and durability of concrete and cement-based structures. Their waterstop solutions are integral to infrastructure projects requiring reliable waterproofing and joint sealing.

Innovation and Sustainability Initiatives:

• Integration of digital monitoring technologies with material performance

• Products designed to reduce long-term maintenance and environmental impact

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PU Waterstops Market – View in Detailed Research Report

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6️⃣ 5. Henkel AG & Co. KGaA

Headquarters: Düsseldorf, Germany
Key Offering: Loctite® PU sealants, Ceresit waterproofing systems, Thioflex® waterstops

Henkel’s engineering adhesives and construction chemicals divisions offer high-performance PU waterstop solutions for civil and structural engineering. Their products are used in tunnels, basements, and water-retaining structures worldwide.

Innovation and Sustainability Initiatives:

• R&D in bio-based polyurethane chemistries

• Circular economy principles in product development and packaging

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5️⃣ 6. KÖSTER BAUCHEMIE AG

Headquarters: Fredenbeck, Germany
Key Offering: KÖSTER Injection Systems, PU Flex Foam, Structural waterproofing

KÖSTER specializes in professional waterproofing and building protection systems. Their PU-based injection resins and waterstop materials are designed for sealing construction joints, cracks, and leaks in concrete structures under hydrostatic pressure.

Innovation and Sustainability Initiatives:

• German-engineered precision in material formulation

• Focus on long-term structural protection and minimal environmental impact

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4️⃣ 7. WEBAC GmbH

Headquarters: Hamburg, Germany
Key Offering: WEBAChem® injection resins, PU foam systems, Concrete repair mortars

WEBAC is a German manufacturer of high-quality construction chemicals, particularly known for its injection technology. Their PU waterstop systems react upon contact with water to form a durable, non-shrinking foam that effectively seals structural movement joints.

Innovation and Sustainability Initiatives:

• Specialization in crack injection and joint sealing technologies

• Products compliant with European environmental and safety standards

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3️⃣ 8. Normet Group Ltd.

Headquarters: Espoo, Finland
Key Offering: Spraymec equipment, Sprayed concrete solutions, Waterproofing chemicals

Normet provides accelerated construction and mining technologies, including advanced waterproofing solutions for underground construction. Their PU-based systems are optimized for use with their specialized application equipment in tunneling and mining operations.

Innovation and Sustainability Initiatives:

• Integration of chemical solutions with mechanized application equipment

• Focus on safety and efficiency in underground construction

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2️⃣ 9. SealBoss Corp.

Headquarters: Santa Ana, California, USA
Key Offering: SealBoss Waterstop Injectite, Polyurethane grouts, Leak seal systems

SealBoss specializes in concrete restoration and leak sealing systems, with a strong focus on polyurethane injection technologies. Their waterstop products are widely used in commercial, industrial, and municipal infrastructure projects across North America.

Innovation and Sustainability Initiatives:

• Development of rapid-set and low-viscosity PU formulations

• Comprehensive technical training and support services

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1️⃣ 10. CIRECO OY

Headquarters: Lahti, Finland
Key Offering: Eco-friendly injection resins, PU waterstop systems, Concrete repair products

CIRECO is a Finnish manufacturer of environmentally conscious construction chemicals, focusing on circular economy principles. Their PU waterstop systems are designed for durability while minimizing ecological impact through sustainable material sourcing and production processes.

Innovation and Sustainability Initiatives:

• Pioneering bio-based and recycled content in polyurethane formulations

• Lifecycle assessment and carbon footprint reduction in product development

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PU Waterstops Market – View in Detailed Research Report

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🌍 Outlook: The Future of PU Waterstops is Smarter and More Sustainable

The PU waterstops market is undergoing a significant transformation. While traditional formulations continue to dominate, the industry is increasingly investing in eco-friendly alternatives, smart application technologies, and enhanced performance characteristics.

📈 Key Trends Shaping the Market:

• Development of bio-based and low-VOC polyurethane formulations

• Integration of digital monitoring sensors in waterproofing systems

• Growing demand from emerging economies with massive infrastructure projects

• Increasing regulatory focus on building sustainability and longevity

Get Full Report Here:
PU Waterstops Market – View in Detailed Research Report

The companies listed above are not only protecting global infrastructure—they’re pioneering the sustainable future of construction waterproofing and structural integrity.