Blog - JingHong

Industry standards

The Complete Guide to FR4 Sheet in 2025

James Yang

Jun 5, 2025

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Market Analysis

The Development History of Insulating Materials

The journey of insulating materials stretches back centuries, evolving from rudimentary natural substances to sophisticated, high-performance solutions that power modern industries. This fascinating progression began with early civilizations harnessing materials like wood, straw, and animal hides to shield against environmental extremes. As scientific understanding deepened, the Industrial Revolution ushered in a wave of innovation, introducing substances like rubber and early ceramics to meet burgeoning electrical demands. The 20th century marked a pivotal era, with synthetic polymers and advanced composites revolutionizing insulation technology. Today, cutting-edge insulating materials, such as aerogels and nanotechnology-enhanced sheets, dominate global markets, catering to diverse sectors from energy to aerospace. This rich history underscores the relentless pursuit of efficiency, safety, and sustainability in insulation advancements.

James Yang

Jun 12, 2025

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Glass Fiber Series

What's the Difference between G10 and FR4?

James Yang

Jun 17, 2025

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Glass Fiber Series

How Is FR4 94V0 Epoxy Board Machined for Electrical Components?

James Yang

Aug 28, 2026

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Glass Fiber Series

CNC Machined G10 ESD Epoxy Board for Semiconductor Equipment Fixtures

James Yang

Aug 28, 2026

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Phenolic Series

How Is Phenolic Paper Laminate Processed for Industrial Insulation Parts?

Caroline Jia

Aug 28, 2026

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Glass Fiber Series

How to Prevent Delamination When Processing 94V0 FR4 Fiberglass Sheet?

Preventing delamination when processing 94V0 FR4 Fiberglass Sheet requires precise control of thermal and mechanical parameters during machining and handling. The key approach involves maintaining optimal cutting speeds with carbide or diamond-coated tools, controlling feed rates to minimize heat accumulation, ensuring proper material storage in controlled humidity environments, and implementing gradual cooling protocols after thermal processing. Additionally, selecting certified material with verified resin cure levels and avoiding excessive mechanical stress during drilling, routing, or punching operations significantly reduces layer separation risks. These combined measures protect the epoxy-glass bond integrity critical for maintaining electrical insulation properties and mechanical strength throughout the product lifecycle.

James Yang

Aug 28, 2026

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Glass Fiber Series

Which CNC Machines Deliver High Precision FR4 94V0 Epoxy Board Parts?

James Yang

Aug 28, 2026

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Phenolic Series

Advanced Processing Technology Enhances Bakelite Sheet Manufacturing Quality

Advanced processing technology has fundamentally transformed how we manufacture phenolic laminated materials, particularly Bakelite Sheet, which serves as the backbone of electrical insulation and industrial applications across multiple sectors. Modern manufacturing methods integrate precise automation, controlled curing environments, and refined resin formulation techniques that eliminate the inconsistencies plaguing traditional production. These technological advancements directly address critical pain points for engineering managers and procurement teams: achieving reliable dielectric strength, maintaining dimensional stability during CNC machining, and ensuring batch-to-batch consistency that meets UL and ROHS compliance standards essential for electrical switchgear and motor component applications.

Caroline Jia

Aug 28, 2026

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