The Global R-Glass Fiber Market was valued at USD 427.3 Million in 2023 and is projected to reach USD 634.4 Million by 2030, growing at a Compound Annual Growth Rate (CAGR) of 5.9% during the forecast period (2024–2030). This robust expansion is fueled by escalating demand for high-strength, lightweight composite materials across the wind energy, aerospace, transportation, and construction sectors. R-glass fiber, known for its superior mechanical properties compared to standard E-glass, is becoming the material of choice for applications requiring exceptional performance under stress and harsh environmental conditions.

As industries worldwide push for greater efficiency and sustainability, the critical role of high-performance reinforcement materials has never been more apparent. In this blog, we profile the Top 10 Companies in the R-Glass Fiber Industry—a dynamic group of global manufacturers and innovators who are setting the standard for quality, technological advancement, and supply chain reliability in the advanced composites market.

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🔟 1. Owens Corning

Headquarters: Toledo, Ohio, USA
Key Offering: Advantex® R-Glass Fibers, Custom Roving, Chopped Strands

Owens Corning is a global leader in insulation, roofing, and fiberglass composites. Its composites business is a major producer of R-glass fibers, marketed under the Advantex® brand, which offers enhanced acid resistance and mechanical strength. The company serves a diverse range of markets, from wind turbine blades to high-pressure pipes and automotive components.

Innovation and Market Focus:

• Pioneer in Advantex® technology for corrosion-resistant applications

• Strong focus on sustainability and circular economy principles in manufacturing

• Significant investments in wind energy and infrastructure composites

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9️⃣ 2. Jushi Group

Headquarters: Tongxiang, Zhejiang, China
Key Offering: R-Glass Roving, Chopped Strand Mat, Multiaxial Fabrics

Jushi Group is one of the world’s largest fiberglass producers, with a formidable manufacturing footprint in China and international expansions, including a plant in the United States. The company produces a comprehensive portfolio of R-glass fibers that are critical for high-performance composites in wind energy and transportation.

Innovation and Market Focus:

• Massive production capacity enabling global supply chain resilience

• Continuous R&D for improving fiber tensile strength and resin compatibility

• Strategic expansion into emerging markets for composites

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8️⃣ 3. Taishan Fiberglass (Sinoma)

Headquarters: Jinan, Shandong, China
Key Offering: R-Glass Direct Roving, Assembled Roving, Wet Chopped Strands

A subsidiary of China National Materials Group (Sinoma), Taishan Fiberglass is a key player in the Asian composites market. The company specializes in high-quality R-glass fibers used extensively in the wind power industry, as well as in marine and infrastructure projects requiring durability and longevity.

Innovation and Market Focus:

• Leading supplier to Asia’s booming wind turbine manufacturing sector

• Focus on cost-effective production without compromising on fiber performance

• Integration within the Sinoma group provides advantages in raw material sourcing

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7️⃣ 4. CPIC (Chongqing Polycomp International Corp.)

Headquarters: Chongqing, China
Key Offering: R-Glass Roving, Chopped Fibers, Fabrics

CPIC is a globally recognized fiberglass manufacturer with a significant focus on innovation and international markets. The company produces a wide array of R-glass products that meet stringent international standards, catering to the automotive, electrical, and wind energy industries with a commitment to technological excellence.

Innovation and Market Focus:

• Strong export-oriented strategy with a presence in over 70 countries

• Investment in advanced roving and fabric weaving technologies

• Emphasis on developing eco-friendly and recyclable composite solutions

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6️⃣ 5. Saint-Gobain Vetrotex

Headquarters: Courbevoie, France
Key Offering: R-Glass Roving, UNIFIL® & THERMOFIL® Yarns

Saint-Gobain Vetrotex, part of the multinational Saint-Gobain Group, is a European leader in high-performance glass fibers. The company’s R-glass products are renowned for their thermal stability and mechanical properties, making them ideal for aerospace, defense, and high-temperature industrial applications.

Innovation and Market Focus:

• Long-standing expertise in high-temperature and fire-resistant composites

• Strong R&D pipeline focused on next-generation multifunctional fibers

• Global network supporting specialized customers in niche markets

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5️⃣ 6. PPG Industries

Headquarters: Pittsburgh, Pennsylvania, USA
Key Offering: Hybon® R-Glass Roving, Chopped Strands

PPG Industries is a leading global supplier of paints, coatings, and specialty materials, including a robust fiberglass portfolio. Their Hybon® brand of R-glass roving is specifically engineered for pultrusion, filament winding, and other composite processes that demand high strength-to-weight ratios and corrosion resistance.

Innovation and Market Focus:

• Focus on application-specific fiber sizing for optimal composite performance

• Strong customer technical support and product development partnerships

• Commitment to sustainable manufacturing processes

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4️⃣ 7. Nippon Electric Glass (NEG)

Headquarters: Otsu, Shiga, Japan
Key Offering: R-Glass Fibers, E-CR Glass Fibers

Nippon Electric Glass is a major Japanese manufacturer of specialty glass and glass fibers. The company produces high-quality R-glass fibers that compete globally, particularly in electronic applications and advanced composites where stringent dimensional stability and electrical properties are required.

Innovation and Market Focus:

• Leadership in glass compositions for electronics and telecommunications

• High-precision manufacturing for consistent fiber diameter and quality

• Strategic focus on high-growth Asian electronics and automotive markets

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3️⃣ 8. Johns Manville

Headquarters: Denver, Colorado, USA
Key Offering: R-Glass Roving, Continuous Filament Mat

A Berkshire Hathaway company, Johns Manville is a leading manufacturer of insulation and building products, with a dedicated division for engineered products including R-glass fibers. The company’s fibers are used in a variety of demanding applications, from reinforced thermoplastics to marine composites.

Innovation and Market Focus:

• Integration of fiberglass production with broader building materials expertise

• Focus on durability and weatherability for construction and industrial applications

• Strong commitment to worker safety and environmental stewardship

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2️⃣ 9. Nittobo

Headquarters: Tokyo, Japan
Key Offering: R-Glass Fibers, Glass Fiber Yarns, Textile Glass Fabrics

Nittobo is a specialized Japanese company with a strong presence in glass fibers and textiles. The company’s R-glass products are known for their high tensile strength and are often used in printed circuit boards (PCBs), filtration media, and specialty reinforcement fabrics.

Innovation and Market Focus:

• Niche focus on high-value applications in electronics and filtration

• Expertise in producing ultra-fine glass fiber yarns

• Collaborative development with customers for custom fiber solutions

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1️⃣ 10. Ahlstrom

Headquarters: Helsinki, Finland
Key Offering: Specialty Glass Fiber Materials, Filter Media, Reinforcements

Ahlstrom is a global leader in fiber-based materials, including specialized glass fiber solutions. While broader than just R-glass, the company’s expertise in high-performance fibers is critical for applications requiring thermal management, filtration, and acoustic insulation, often utilizing the enhanced properties of R-glass.

Innovation and Market Focus:

• Focus on sustainable and innovative fiber-based solutions

• Leadership in filtration and life science materials

• Commitment to achieving 100% renewable electricity and reducing water usage

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🌍 Outlook: The Future of R-Glass Fiber Is Stronger and Smarter

The R-glass fiber market is positioned for sustained growth, driven by the global transition to lightweight, durable, and sustainable materials. While E-glass remains the volume leader for general-purpose composites, R-glass is capturing an increasing share of high-value applications where performance cannot be compromised.

📈 Key Trends Shaping the Market:

• Exponential growth in wind turbine blade length, demanding higher-performance reinforcements

• Increasing adoption in electric vehicle battery enclosures and structural components

• Advancements in hybrid composites combining R-glass with carbon fiber for optimized cost-performance ratios

• Rising investments in recycling technologies for end-of-life composite materials

The companies listed above are not only supplying a critical industrial material—they are enabling the next generation of lightweight, efficient, and resilient technologies that will define the future of multiple global industries.

Get Full Report Here:
R-Glass Fiber Market – View in Detailed Research Report