The Global Core Material for Wind Blade Market was valued at USD 1.85 Billion in 2023 and is projected to reach USD 3.12 Billion by 2030, growing at a Compound Annual Growth Rate (CAGR) of 7.8% during the forecast period (2023–2030). This robust growth is driven by the global transition to renewable energy, an unprecedented scale-up in wind power capacity, and the continuous innovation in lightweight, high-strength composite materials essential for longer and more efficient turbine blades.

As wind turbines grow larger to capture more energy, the structural integrity and performance of their blades become paramount. At the heart of these massive structures are advanced core materials that provide the necessary stiffness, strength, and durability. In this blog, we profile the Top 10 Companies in the Core Material for Wind Blade Industry—a group of specialized material scientists and manufacturers who are building the backbone of the modern wind energy sector.

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🔟 1. Diab Group

Headquarters: Stockholm, Sweden
Key Offering: Divinycell PVC foam, structural core materials

Diab Group is a world-leading manufacturer of structural core materials used in sandwich composites. Their Divinycell PVC foam is extensively used in wind turbine blades for its excellent strength-to-weight ratio, fatigue resistance, and ease of processing. Diab serves major wind turbine OEMs globally.

Innovation Initiatives:

• Development of recyclable and bio-based foam solutions

• High-performance foam grades optimized for ultra-long blades

• Global technical support and supply chain for wind industry

Download FREE Sample Report: Core Material for Wind Blade Market – View in Detailed Research Report

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9️⃣ 2. 3A Composites Group (Schweiter Technologies)

Headquarters: Sins, Switzerland
Key Offering: Airex PET and PVC foam cores, Baltek balsa wood

3A Composites Core Materials is a dominant force, offering a diverse portfolio through its Airex (foam) and Baltek (balsa) brands. The acquisition of Baltek solidified its position as a full-range supplier, providing both synthetic foam and natural balsa solutions to the wind energy market.

Innovation Initiatives:

• Investment in thermoplastic PET foam production for sustainability

• Integration of balsa supply chain for consistent quality and volume

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8️⃣ 3. Gurit

Headquarters: Wattwil, Switzerland
Key Offering: PET foams (ProBalsa, Corecell), structural adhesives

Gurit is a specialist in composite materials and engineering, with a strong focus on the wind energy sector. Its ProBalsa (renewable wood) and Corecell (PET foam) products are engineered specifically for the demanding requirements of wind blade manufacturing.

Innovation Initiatives:

• Pioneering sustainable PET foam technologies

• Integrated material systems combining cores, adhesives, and fabrics

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7️⃣ 4. Changzhou Tiansheng New Materials Co., Ltd.

Headquarters: Changzhou, Jiangsu, China
Key Offering: PET foam core materials

As a leading Chinese manufacturer, Changzhou Tiansheng specializes in PET foam core materials. The company has grown rapidly by supplying the domestic wind power boom and is expanding its footprint in the international market with cost-competitive and high-performance solutions.

Innovation Initiatives:

• Scaling up PET foam production capacity to meet soaring demand

• Focus on R&D for improved fire resistance and mechanical properties

Download FREE Sample Report: Core Material for Wind Blade Market – View in Detailed Research Report

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6️⃣ 5. LUOYANG KEBOS NEW MATERIAL TECHNOLOGY CO., LTD. (Longhua Technology Group)

Headquarters: Luoyang, Henan, China
Key Offering: PVC foam, PET foam core materials

Kebos New Material is a key supplier within the massive Longhua Technology Group, providing a range of polymer foam cores for the composite industry. The company is a major domestic supplier to China’s wind turbine manufacturers, benefiting from the country’s leadership in wind installations.

Innovation Initiatives:

• Development of customized foam formulations for specific blade designs

• Expansion into aerospace and marine composites to diversify applications

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5️⃣ 6. Armacell International S.A.

Headquarters: Luxembourg, Luxembourg
Key Offering: ArmaForm PET foam cores

Armacell, a global leader in flexible foams, has successfully expanded into structural PET foams with its ArmaForm product line. These 100% PET-based cores are 100% recyclable, aligning with the wind industry’s sustainability goals and offering excellent mechanical properties.

Innovation Initiatives:

• Promoting closed-loop recycling for PET core materials

• Strategic focus on sustainable material solutions for green industries

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4️⃣ 7. Maricell

Headquarters: Seewalchen, Austria
Key Offering: Custom-engineered PVC and PET foam cores

Maricell is an Austrian specialist in closed-cell cross-linked PVC foams. The company is known for its high-quality, consistent products and its ability to provide customized solutions for specific wind blade applications, particularly in the European market.

Innovation Initiatives:

• Focus on high-temperature performance for optimized infusion processes

• Collaborative development projects with blade manufacturers

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3️⃣ 8. CoreLite

Headquarters: Statesville, North Carolina, USA
Key Offering: Sustainable PET foam core materials

CoreLite is a prominent North American manufacturer of PET structural foam cores. The company emphasizes the environmental benefits of its products, which are made from recycled PET and are themselves fully recyclable, offering a compelling solution for the eco-conscious wind sector.

Innovation Initiatives:

• Manufacturing cores with high recycled content

• Developing foam architectures for next-generation segmented blades

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2️⃣ 9. Sicomin

Headquarters: Châteauneuf les Martigues, France
Key Offering: GreenPoxy bio-based resins and compatible core materials

While primarily known for its bio-based epoxy systems, Sicomin plays a crucial role in the ecosystem by developing material systems that include compatible core materials. Their approach focuses on creating sustainable, high-performance composite structures from the ground up.

Innovation Initiatives:

• Pioneering bio-derived epoxy resins for wind blades

• System integration of resins, cores, and reinforcements

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1️⃣ 10. CHANGYOU TECHNOLOGY

Headquarters: Jiangsu, China
Key Offering: PVC and PET foam core materials

Changyou Technology is a significant Chinese producer of polymer foam cores, serving the domestic wind energy market. The company supports China’s position as the world’s largest wind market by providing materials that meet the demanding specifications of local turbine OEMs.

Innovation Initiatives:

• Cost-optimized production for competitive pricing

• Expanding product portfolio to include advanced foam grades

Get Full Report Here: Core Material for Wind Blade Market – View in Detailed Research Report

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🌍 Outlook: The Future of Wind Blade Core Materials is Larger, Lighter, and Greener

The core materials market is evolving in lockstep with the wind energy industry’s ambitious goals. As blades exceed 100 meters in length to power multi-megawatt turbines, the demand for advanced, lightweight, and sustainable core solutions will intensify.

📈 Key Trends Shaping the Market:

• Accelerated adoption of recyclable PET foam over traditional PVC

• R&D into bio-based and fully recyclable composite material systems

• Innovations in core architecture for segmented and modular blade designs

• Increasing material performance requirements for offshore wind applications

Get Full Report Here: Core Material for Wind Blade Market – View in Detailed Research Report

The companies listed above are not only supplying critical materials for today’s wind turbines—they’re developing the advanced composites that will enable the next generation of clean, efficient, and powerful renewable energy infrastructure.