Blog - JingHong

Glass Fiber Series

Global Market Trends for Epoxy Glass Laminates

James Yang

Aug 18, 2025

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Glass Fiber Series

The Rise of FR4 Epoxy Sheets in 5G Hardware

James Yang

Aug 15, 2025

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Glass Fiber Series

A Guide to Buying FR4 Glass Fiber Sheets from China

James Yang

Aug 15, 2025

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Glass Fiber Series

How to Evaluate the Insulation Strength of 3240 Epoxy Boards?

Evaluating the insulation strength of 3240 epoxy boards is crucial for ensuring the reliability and safety of electrical equipment. This process involves a combination of standardized testing methods and analytical techniques. The primary focus is on measuring dielectric strength, volume resistivity, and thermal aging characteristics. Industry-standard tests such as ASTM D149 for dielectric breakdown and ASTM D257 for volume resistivity are commonly employed. Additionally, thermal aging tests assess the board's ability to maintain its insulative properties over time under various temperature conditions. By comparing results to established benchmarks and industry standards, engineers can accurately determine the insulation strength and overall performance of 3240 epoxy boards for specific applications.

James Yang

Aug 15, 2025

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Glass Fiber Series

What to Look for When Buying G10 Insulation Sheets?

When purchasing G10 insulation sheets, it's crucial to consider several key factors to ensure you're getting a high-quality product that meets your specific needs. Look for sheets with consistent thickness, uniform color, and smooth surface finish. Check the dielectric strength ratings to ensure they match your application requirements. Verify the manufacturer's certifications and test reports for quality assurance. Consider the sheet's thermal stability, chemical resistance, and mechanical strength. Pay attention to the resin content and glass fabric type used in the composition. Lastly, evaluate the supplier's reputation, customer service, and ability to provide custom sizes or grades if needed. By carefully assessing these aspects, you can make an informed decision and select G10 insulation sheets that will perform optimally in your intended application.

James Yang

Aug 15, 2025

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Glass Fiber Series

How to Use FR4 Epoxy Sheets in PCB Manufacturing?

FR4 epoxy sheets are a cornerstone in PCB manufacturing, offering an excellent balance of electrical insulation, mechanical strength, and thermal stability. To effectively use FR4 epoxy sheets in PCB production, start by selecting the appropriate thickness and grade based on your specific application requirements. Next, follow proper lamination techniques to bond copper foils to the FR4 substrate, ensuring optimal adhesion. Precision drilling and careful depaneling are crucial steps that require attention to detail. Throughout the manufacturing process, implement rigorous quality control measures to ensure the FR4 sheets meet specifications before moving on to component assembly and soldering. By adhering to these key principles, you can maximize the performance and reliability of your PCBs while leveraging the advantageous properties of FR4 epoxy sheets.

James Yang

Aug 15, 2025

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Glass Fiber Series

Understanding the Electrical Grades of FR4 Epoxy Sheets

James Yang

Aug 15, 2025

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Glass Fiber Series

Thermal Aging Tests for G10 Insulation Material

Thermal aging tests for G10 insulation material are crucial procedures that assess the long-term performance and durability of this high-performance composite under prolonged heat exposure. These tests simulate real-world conditions to evaluate how G10 sheets maintain their electrical, mechanical, and physical properties over time when subjected to elevated temperatures. By exposing G10 samples to controlled heat environments for extended periods, manufacturers can determine the material's thermal endurance, predict its lifespan, and ensure its reliability in various applications. The results of these tests are invaluable for engineers and designers who rely on G10's stability in high-temperature environments, particularly in electrical insulation, aerospace, and industrial applications where consistent performance is paramount.

James Yang

Aug 15, 2025

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Glass Fiber Series

Is G10 Fiberglass Sheet Waterproof?

James Yang

Aug 15, 2025

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