At a time when materials science and industrial applications are constantly developing, G11 fiberglass sheet has been increasingly widely used in many fields due to its unique performance, and its market price has also been significantly affected. This article will deeply analyze the mechanism of the application of G11 fiber sheet on market prices from the aspects of high-end application scenarios, performance improvement, supply and demand balance and policy cost drive.
With the urgent global demand for clean energy, the installed capacity of new energy has continued to rise. As an insulating structural component in wind power converters and photovoltaic inverters, G11 fiber sheet plays a key role in the new energy industry. Taking wind power and photovoltaics as examples, the continuous growth of their new installed capacity has led to a sharp increase in the market demand for high-performance low-dielectric electronic yarn. In the field of hydrogen fuel cells, the bipolar plate insulation layer requires G11 fiber sheet to withstand an operating temperature of 60℃ – 80℃. This special demand has further promoted the growth of demand for related materials, thereby indirectly supporting the price of G11 fiberglass sheet.
In the field of rail transit and high-voltage equipment, G11 fiber sheet has an indispensable position. It is widely used in high-speed rail traction transformers, pantograph insulators and other scenarios. These application scenarios have extremely strict performance requirements for G11 fiberglass sheets, especially high temperature resistance (need to meet 200℃ continuous operation) and arc resistance. After many companies adopted G11 fiberglass sheets, the equipment failure rate was greatly reduced, and the equipment stability and reliability were significantly improved. This good application effect has led to an increasing market demand for high-end fiberglass boards, which in turn has provided strong support for the price of G11 fiberglass sheets.
In the field of consumer electronics and 5G base station construction, G11 fiber sheets also play an important role. It is used in key components such as 5G base station antenna covers and AI server heat sinks. These application scenarios require G11 fiber sheets to have low dielectric constants and high temperature resistance. Entering 2025, the construction of 5G base stations is accelerating, and the growth of market demand has directly driven a slight increase in the price of electronic cloth. This phenomenon fully reflects the driving effect of high-end demand on the price of G11 fiberglass sheet.
G11 fiber sheet has achieved significant performance improvement through careful adjustment of the ratio of epoxy resin to glass fiber. Its dielectric strength reaches ≥30kV/mm, which can fully meet the stringent requirements of high-voltage switchgear and transformer oil environment. In a humid environment, the insulation resistance of G11 fiberglass sheet is still ≥1×10¹⁰Ω, which is 30% higher than the performance of traditional materials. This outstanding performance advantage makes the price of G11 fiberglass sheet 15% – 20% higher than that of ordinary fiberglass board.
The wide application of pool kiln drawing method in the production of G11 fiberglass board (this method accounts for more than 90% of global production) has significantly improved production efficiency, with production efficiency increased by 20% and costs reduced by 10%. However, for some high-end products, such as low dielectric yarn, China still needs to rely on imports, which to a certain extent limits the pricing power of domestic enterprises and also makes the price system of G11 fiberglass board affected by the international market.
In 2025, the market plans to add a large amount of glass fiber capacity, but some production lines are still in the trial operation stage, and the actual supply pressure in the short term is relatively controllable. If the demand in new energy, infrastructure investment and other fields continues to recover, the industry inventory will be gradually digested. It is expected that the price of G11 glass fiber sheet will maintain an upward trend before the second quarter. But in the long run, the concentrated release of new production lines after 2025 may break the existing supply and demand balance and impose certain restrictions on price increases.
The advancement of the “carbon peak and carbon neutrality” strategy has greatly promoted the development of new energy, wind power and other fields, thereby driving the growth of demand for G11 glass fiber sheet. At the same time, the continuous increase in raw material and energy costs has put companies under great cost pressure. In order to improve profitability, it has become an industry consensus for companies to raise prices. This move has laid a bottom support for the price of G11 glass fiber sheet.
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