Blog - JingHong

Glass Fiber Series

How FR4 Epoxy Sheet Performs Under High Voltage Stress?

FR4 epoxy sheet exhibits remarkable performance under high voltage stress, making it a cornerstone material in electrical and electronic applications. Its exceptional dielectric strength, typically ranging from 20 to 80 kV/mm, allows it to withstand substantial electrical fields without breakdown. This resilience stems from its composite structure of woven glass fiber reinforced with epoxy resin, creating a robust barrier against electrical discharge. Under high voltage conditions, FR4 maintains its insulative properties, preventing current flow and protecting sensitive components. Its low moisture absorption further enhances its electrical stability in varied environments, ensuring consistent performance even in challenging conditions. This combination of properties makes FR4 epoxy sheet a reliable choice for high voltage applications, from power distribution systems to advanced electronics.

James Yang

Sep 2, 2025

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Glass Fiber Series

FR4 Epoxy Sheet Thermal Conductivity Data and Analysis

James Yang

Sep 2, 2025

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Glass Fiber Series

Thermal Resistance of 3240 Epoxy Sheet in Continuous Use

The 3240 epoxy sheet demonstrates exceptional thermal resistance in continuous use applications, making it a premier choice for industries requiring reliable insulation under high-temperature conditions. This advanced composite material can withstand temperatures up to 130°C (266°F) in continuous operation without significant degradation of its mechanical or electrical properties. Its remarkable thermal stability is attributed to the unique combination of epoxy resin and fiberglass reinforcement, which creates a robust structure capable of maintaining its integrity even when exposed to prolonged heat stress. This thermal endurance ensures that 3240 epoxy sheets remain effective insulators in demanding environments, contributing to the longevity and reliability of the equipment they protect.

James Yang

Sep 1, 2025

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Glass Fiber Series

Mechanical Properties of 3240 Epoxy Sheet Explained

James Yang

Sep 1, 2025

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Glass Fiber Series

G10 Epoxy Sheet Chemical Resistance Data

G10 epoxy sheets exhibit remarkable chemical resistance, making them invaluable in numerous industrial applications. These composite materials, consisting of woven fiberglass cloth impregnated with epoxy resin, demonstrate exceptional durability against a wide array of chemical substances. Their resistance encompasses acids, alkalis, organic solvents, and oils, rendering them suitable for use in harsh environments where exposure to corrosive agents is common. The chemical fortitude of G10 epoxy sheets stems from the inherent properties of both the fiberglass reinforcement and the epoxy matrix, creating a synergistic effect that enhances overall resistance. This robust chemical resistance, coupled with other superior mechanical and electrical properties, positions G10 epoxy sheets as a preferred choice in industries ranging from electronics to aerospace.

James Yang

Sep 1, 2025

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Glass Fiber Series

FR4 Epoxy Sheet Temperature Resistance: Technical Insights

James Yang

Sep 1, 2025

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Glass Fiber Series

Myths and Facts About FR4 Epoxy Sheet

James Yang

Sep 1, 2025

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Glass Fiber Series

The History and Development of 3240 Epoxy Sheet

James Yang

Aug 29, 2025

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Glass Fiber Series

How to Recognize Genuine G10 Epoxy Sheet?

Recognizing genuine G10 epoxy sheet requires a combination of visual inspection, physical examination, and performance testing. Authentic G10 exhibits a distinct appearance with a smooth, uniform surface and consistent color throughout. Its high-density structure should feel solid and weigh appropriately for its size. When subjected to stress, genuine G10 demonstrates exceptional strength and rigidity without flexing easily. Electrical insulation properties can be verified through conductivity tests, while chemical resistance can be assessed by exposing a small sample to common solvents. Additionally, authentic G10 maintains its properties under high temperatures and resists moisture absorption. By employing these multifaceted evaluation techniques, one can confidently identify genuine G10 epoxy sheet and ensure its suitability for critical applications in electronics, aerospace, and other demanding industries.

James Yang

Aug 29, 2025

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