Blog - JingHong

Phenolic Series

Using Phenolic Cotton Cloth Sheets in Gear Production

Caroline Jia

Aug 6, 2025

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Glass Fiber Series

Phenolic Resin Sheets: Bulk Purchase Guide

James Yang

Aug 6, 2025

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Glass Fiber Series

The Importance of FR4 Sheets in Telecom Equipment

FR4 sheets play a crucial role in the telecommunications industry, serving as the backbone for numerous critical components in telecom equipment. These flame-retardant epoxy resin fiberglass laminate sheets are indispensable due to their exceptional electrical insulation properties, mechanical strength, and thermal stability. In the ever-evolving world of telecommunications, where signal integrity and reliability are paramount, FR4 sheets provide the necessary foundation for high-performance circuit boards, antennas, and other essential hardware. Their ability to maintain consistent electrical characteristics across a wide range of frequencies makes them ideal for supporting the complex circuitry required in modern telecom devices. As the industry continues to advance towards faster and more efficient communication systems, the importance of FR4 sheets in ensuring the reliability and functionality of telecom equipment cannot be overstated.

James Yang

Aug 6, 2025

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Glass Fiber Series

Which Material is Best for PCB? FR4 or G10?

When it comes to selecting the optimal material for printed circuit boards (PCBs), the debate often centers around FR4 sheets and G10 sheets. Both materials offer unique properties that make them suitable for various applications in the electronics industry. However, FR4 is generally considered the superior choice for most PCB applications. Its flame-retardant properties, excellent electrical insulation, and cost-effectiveness give it an edge over G10. That said, G10 still has its place in specific high-performance scenarios where its superior mechanical strength and thermal stability are crucial. The choice between FR4 and G10 ultimately depends on the specific requirements of your project, including factors such as operating environment, electrical performance needs, and budget constraints.

James Yang

Aug 6, 2025

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Phenolic Series

How to Identify High-Quality Phenolic Paper Sheets?

Identifying high-quality phenolic paper sheets requires a combination of visual inspection, physical testing, and understanding key performance characteristics. Quality phenolic paper sheets should exhibit uniform color and texture, smooth surfaces without blemishes, and consistent thickness throughout. They should resist moisture absorption, maintaining dimensional stability when exposed to humid conditions. High-grade sheets will also demonstrate superior mechanical strength, excellent electrical insulation properties, and resistance to chemicals and heat. Professional testing can confirm these attributes through standardized procedures measuring factors like dielectric strength, flexural strength, and water absorption rates. By evaluating these aspects, you can ensure the phenolic paper sheets meet the demanding standards required for critical applications in electrical, mechanical, and structural engineering.

Caroline Jia

Aug 6, 2025

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Phenolic Series

Applications of Phenolic Cotton Cloth Laminated Sheets

Caroline Jia

Aug 6, 2025

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Phenolic Series

Phenolic Resin Sheet: Heat Resistance and Industrial Use

Caroline Jia

Aug 6, 2025

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Glass Fiber Series

Comparing 3240 Epoxy Board and FR4 Epoxy Glass Sheet

James Yang

Aug 6, 2025

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Glass Fiber Series

How to Store and Handle Epoxy Sheets in Humid Environments?

Storing and handling epoxy sheets in humid environments requires careful attention to detail and proper techniques. To maintain the quality and integrity of epoxy sheets, it's crucial to control humidity levels, use appropriate storage methods, and handle the materials with care. Start by storing epoxy sheets in a cool, dry area with consistent temperature and humidity levels. Utilize desiccants or dehumidifiers to reduce moisture in the storage space. When handling, wear gloves to prevent moisture transfer from your hands. Stack sheets horizontally on flat surfaces with protective layers between them. Regularly inspect for signs of moisture damage or warping. By following these guidelines, you can ensure your epoxy sheets remain in optimal condition, even in challenging humid environments.

James Yang

Aug 5, 2025

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