The China Glass Based Laminates (SRBG) market size was valued at US$ 568.2 million in 2024 and is projected to reach US$ 782.4 million by 2030, growing at a CAGR of 5.5% during the forecast period (2024-2030). This growth trajectory reflects China’s dominant position in advanced composite materials manufacturing and its expanding applications across critical infrastructure projects.
Glass Based Laminates (SRBG) represent a specialized class of high-performance insulation materials where glass fabric is bonded with silicone resins. These materials have become indispensable in China’s power transmission networks, aerospace industry, and next-generation electronics due to their exceptional thermal resistance (withstanding temperatures up to 180°C), Class H electrical insulation ratings, and flame-retardant properties that meet UL94 V-0 standards.
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Market Overview & Regional Analysis
China accounts for over 65% of Asia-Pacific’s SRBG production capacity, with leading manufacturing clusters in Shandong, Jiangsu, and Guangdong provinces. The country’s massive investments in ultra-high voltage (UHV) transmission networks—with 38,068 kilometers of UHV lines operational as of 2023—have created sustained demand for high-grade insulation materials. Provincial grid companies procured over 42,000 tons of SRBG laminates for transformer insulation last year alone.
While domestic consumption dominates, China exported 39,000 metric tons of SRBG products in 2023, primarily to Southeast Asia and the Middle East. The country’s competitive advantages lie in vertically integrated production ecosystems, where major players control everything from glass fiber production to resin formulation, resulting in 12-15% lower unit costs than international competitors.
Key Market Drivers and Opportunities
The market’s growth stems from multiple converging factors: China’s renewable energy expansion requires specialized insulation for wind turbines and solar inverters, while the aerospace sector’s localization push has increased demand for lightweight, fire-resistant cabin materials. The automotive electrification wave—with China producing 8.9 million new energy vehicles in 2023—is creating new applications in battery pack insulation and charging infrastructure.
Emerging opportunities include 5G base station substrates utilizing low-dielectric SRBG variants (<2.5 at 1GHz) and flexible printed circuits for wearable electronics. The Ministry of Industry and Information Technology's recent guidelines promoting high-end electronic materials provide policy support for these advanced applications. Another promising area is nuclear power plant electrical systems, where radiation-resistant SRBG formulations are being tested.
Challenges & Restraints
The market faces several headwinds, including tight supply of high-purity E-glass fibers and volatile silicone resin prices, which fluctuated between ¥28,000-34,000/ton in 2023. Technologically, competitors like ceramic-filled polyimide films are making inroads in high-temperature applications above 200°C. Environmental compliance costs are also rising following China’s updated GB 30981-2020 standards for solvent emissions from resin production.
Trade dynamics present additional complexities. While Chinese SRBG exports grew 9% year-over-year in Q1 2024, anti-dumping investigations in India and potential EU carbon border adjustments could impact future trade flows. Domestically, the market is seeing consolidation, with the top 5 producers increasing their combined market share from 58% to 63% in 2023 through strategic acquisitions.
Market Segmentation by Type
- Phenolic-based Laminates
- Epoxy-based Laminates
- Silicone-based Laminates
- Polyimide-based Laminates
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Market Segmentation by Application
- Power Transformers & Switchgear
- Aerospace Components
- Automotive Electrical Systems
- Marine Equipment
- Industrial Machinery Insulation
Market Segmentation and Key Players
- Kangde Xin Composite Material Group Co., Ltd.
- China Jushi Co., Ltd.
- China National Building Material Company Limited
- Kingboard Laminates Holdings Ltd.
- Sichuan Dongfang Insulating Material Co., Ltd.
- Shandong Boao Fiber Glass Co., Ltd.
- Taishan Fiberglass Inc.
- Jiangsu Jiuding New Material Co., Ltd.
- Shenzhen Sunxing Light Alloys Materials Co., Ltd.
- Changzhou Tianma Group Co., Ltd.
Report Scope
This comprehensive report provides in-depth analysis of the China Glass Based Laminates (SRBG) market from 2024 to 2030, featuring:
- Historical data and forward-looking projections across product segments and applications
- Competitive benchmarking of domestic manufacturers on production capacity, technology portfolios, and market positioning
- Regulatory impact analysis of China’s new material development policies and environmental standards
- Supply chain evaluation covering raw material sourcing trends and distribution channel dynamics
The research methodology combines:
- Plant-level capacity utilization tracking
- Quarterly price trend analysis across 6 regional markets
- Annual surveys of 120+ industry participants
- Patent analysis of material innovations
- Customized market modeling incorporating 28 variables
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