Blog - JingHong

Glass Fiber Series

Why FR4 Glass Epoxy is the Backbone of High-Quality Electronic Devices

James Yang

Jun 24, 2025

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Glass Fiber Series

How to Store and Handle FR4 Epoxy Sheets for Long-Term Use Without Performance Loss?

James Yang

Jun 24, 2025

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Phenolic Series

What is CE phenolic?

CE phenolic sheet, short for continuous electrical phenolic, is a high-performance insulating material widely used in the electrical and electronics industries. This advanced composite is crafted by impregnating layers of woven glass fabric or cellulose paper with phenolic resin, resulting in a robust and versatile material. CE phenolic sheet boasts exceptional electrical insulation properties, mechanical strength, and thermal resistance, making it ideal for various applications in electrical systems, transformers, and circuit boards. Its unique combination of characteristics, including low moisture absorption, excellent dimensional stability, and flame-retardant properties, has established CE phenolic as a go-to solution for manufacturers seeking reliable insulation materials in demanding environments.

Caroline Jia

Jun 24, 2025

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Phenolic Series

Why CE Phenolic Sheets Are Ideal for Transformers?

CE phenolic sheets have become the go-to material for transformers due to their exceptional combination of electrical, mechanical, and thermal properties. These sheets offer superior insulation, remarkable heat resistance, and outstanding dimensional stability, making them ideal for the demanding environment within transformers. Their ability to withstand high temperatures while maintaining excellent dielectric strength ensures reliable performance and longevity of transformer components. Moreover, CE phenolic sheets' resistance to oil and moisture, coupled with their flame-retardant properties, significantly enhances the safety and durability of transformer systems. This unique blend of characteristics makes CE phenolic sheets an indispensable material in modern transformer design and manufacturing.

Caroline Jia

Jun 24, 2025

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Glass Fiber Series

Does FR4 Laminate Epoxy Sheet Belong to Composite Material?

James Yang

Jun 23, 2025

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Glass Fiber Series

What are the Specific Uses of FR4 Epoxy Board?

FR4 epoxy board, also known as 3240 epoxy sheet or 3240 epoxy board, is a versatile material with numerous applications across various industries. This flame-retardant, glass-reinforced epoxy laminate is prized for its exceptional electrical insulation properties, mechanical strength, and thermal stability. FR4 Epoxy Board finds extensive use in printed circuit boards (PCBs) for electronic devices, electrical insulation in industrial equipment, and structural components in aerospace and automotive sectors. Its ability to maintain performance under high temperatures and humid conditions makes it indispensable in telecommunications infrastructure, medical devices, and renewable energy systems. The specific uses of FR4 Epoxy Board showcase its adaptability and reliability in meeting diverse engineering challenges.

James Yang

Jun 23, 2025

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Phenolic Series

What are the Differences Between Bakelite Sheet and a Fiberglass Plate Epoxy Plate?

Caroline Jia

Jun 23, 2025

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Glass Fiber Series

Do you Know What is the Difference Between Fiberglass Board, FR4 Epoxy Board, and Fiberboard?

Fiberglass board, FR4 epoxy board, FR4 sheet, and fiberboard are all insulating materials used in various industries, but they have distinct characteristics and applications. Fiberglass board is made from glass fibers and resin, offering excellent electrical insulation and heat resistance. FR4 epoxy board, a type of fiberglass reinforced epoxy laminate, and its commonly used form, the FR4 sheet, are widely used in printed circuit boards due to their superior electrical properties and flame resistance. Fiberboard, on the other hand, is made from wood fibers and is primarily used in construction and furniture manufacturing. While all three materials provide insulation, their composition, properties, and applications differ significantly, making each suitable for specific purposes in industries ranging from electronics to construction.

James Yang

Jun 23, 2025

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Glass Fiber Series

Three Common FR4 Epoxy Sheet Processing Methods

FR4 epoxy sheets, also known as FR4 epoxy boards, are versatile materials widely used in the electronics industry. These flame-retardant composite materials offer excellent electrical insulation properties and mechanical strength. When it comes to processing FR4 sheets, manufacturers employ various techniques to shape and modify these materials for specific applications. In this comprehensive guide, we'll explore three common FR4 epoxy sheet processing methods: machining, lamination, and chemical etching. Each of these methods offers unique advantages and is suited for different applications in the production of printed circuit boards (PCBs) and other electronic components. By understanding these processing techniques, manufacturers can optimize their production processes and achieve the desired results for their FR4-based products.

James Yang

Jun 23, 2025

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