Blog - JingHong

Glass Fiber Series

Key Properties of FR4 Epoxy Sheet for Industrial Use

FR4 epoxy sheet is a versatile material widely used in industrial applications due to its exceptional combination of properties. This composite material, consisting of woven fiberglass cloth impregnated with epoxy resin, offers outstanding electrical insulation, mechanical strength, and thermal stability. FR4 sheets are flame-retardant, possess low moisture absorption, and maintain dimensional stability under varying environmental conditions. These key attributes make FR4 epoxy sheets ideal for manufacturing printed circuit boards, electrical insulators, and structural components in diverse industries such as electronics, aerospace, and automotive. The material's reliability, durability, and cost-effectiveness have solidified its position as a crucial element in modern industrial manufacturing processes.

James Yang

Aug 19, 2025

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Glass Fiber Series

Common Failure Modes in Epoxy Boards and How to Prevent Them

James Yang

Aug 18, 2025

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Glass Fiber Series

Is G10 UV Resistant for Outdoor Use?

G10, a fiberglass-epoxy composite material renowned for its exceptional strength and durability, is not inherently UV resistant for outdoor use without additional protection. While G10 sheet exhibits excellent mechanical properties and chemical resistance, prolonged exposure to ultraviolet (UV) radiation can gradually degrade its surface, affecting both its appearance and performance. The epoxy resin component of G10 is particularly susceptible to UV-induced degradation, which can lead to discoloration, chalking, and potential structural weakening over time. However, with proper protective measures such as UV-resistant coatings or treatments, G10 can be effectively used in outdoor applications where its unique combination of strength, lightweight nature, and electrical insulation properties are desirable.

James Yang

Aug 18, 2025

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Glass Fiber Series

Which Is Better for High-Frequency Circuits: G11 or G10?

James Yang

Aug 18, 2025

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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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