Blog - JingHong

Phenolic Series

Phenolic Cotton Sheet Flame Resistance and Safety Factors

Phenolic cotton sheet, a versatile composite material, exhibits remarkable flame resistance and safety characteristics. This laminated material, created by impregnating cotton cloth with phenolic resin and curing under heat and pressure, boasts inherent fire-retardant properties. Its ability to resist ignition and slow flame spread makes it an ideal choice for applications where fire safety is paramount. The phenolic resin's thermosetting nature contributes to its excellent thermal stability, maintaining structural integrity even at elevated temperatures. These safety factors, combined with its electrical insulation properties and mechanical strength, position phenolic cotton sheet as a crucial component in various industries, from electrical equipment manufacturing to aerospace and automotive sectors.

Caroline Jia

Sep 2, 2025

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Glass Fiber Series

3240 Epoxy Sheet Dielectric Performance Under Stress

James Yang

Sep 2, 2025

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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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Phenolic Series

Electrical Insulation Capabilities of Phenolic Cotton Sheet

Caroline Jia

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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Phenolic Series

Bakelite Sheet Wear Resistance in Mechanical Applications

Caroline Jia

Sep 2, 2025

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Phenolic Series

Bakelite Sheet vs Other Phenolic Laminates: A Technical Comparison

Caroline Jia

Sep 1, 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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Phenolic Series

Testing Standards for Bakelite Sheet in Industrial Use

James Yang

Sep 1, 2025

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