Blog - JingHong

Glass Fiber Series

How to Avoid Delamination When CNC Routing FR4 Epoxy Sheets

James Yang

Jun 29, 2026

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Glass Fiber Series

Manufacturing 3240 Epoxy Sheets for EV Battery Trays: Precision and Safety

James Yang

Jun 29, 2026

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Glass Fiber Series

CNC Machined FR4 Sheets for PCB Test Fixtures: Accuracy and Reliability

Precision and reliability are musts when looking at materials for PCB test tools. FR4 sheet, which is a glass-reinforced epoxy laminate, is the standard in its field because it has the best mix of fire proof, electrical insulation, and mechanical strength. UL94 V-0 flame retardancy is achieved in this glass-epoxy compound by adding bromine-based chemicals. This makes it self-extinguishing, which keeps sensitive electronics safe. These epoxy laminates are turned into special test fixture parts with tight dimensional limits by CNC cutting. This lets engineers keep the contact pressure and signal integrity over thousands of testing rounds. The controlled production process fixes some of the most important problems in electronics tests, like keeping the temperature stable over long periods of time, making sure that high-frequency signals work the same way every time, and making sure that the structure lasts for a long time without breaking down.

James Yang

Jun 26, 2026

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Glass Fiber Series

From Raw Resin to Finished Part: The Full Production Cycle of 3240 Epoxy Sheets

James Yang

Jun 26, 2026

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Glass Fiber Series

Surface Finish Optimization in G10 Sheet CNC Machining

James Yang

Jun 25, 2026

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Glass Fiber Series

From FR4 Sheet to Finished Insulation Part: CNC Manufacturing Process

James Yang

Jun 25, 2026

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Glass Fiber Series

Quality Control Methods in 3240 Epoxy Sheet Machining

James Yang

Jun 24, 2026

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Glass Fiber Series

How Modern Laminating Presses Improve G10 Sheet Consistency

James Yang

Jun 24, 2026

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Glass Fiber Series

Why G10 Sheet is the Material of Choice for Cryogenic Support Components?

When building cold support components, the choice of material is the most important thing that determines whether they will work or fail catastrophically. G10 sheet has become the standard in the industry because it is the only material that can meet the strict needs of ultra-low temperature conditions. Despite being subject to thermal cycling between room temperature and almost absolute zero, this fiberglass-reinforced epoxy laminate maintains its shape very well, keeps its mechanical strength at cryogenic temperatures, and keeps its electrical insulation qualities. This epoxy-glass composite keeps its performance characteristics throughout the entire operational temperature range, unlike other materials that break or lose their structural integrity. This makes it an essential part of LNG facilities, aerospace applications, and scientific research equipment.

James Yang

Jun 23, 2026

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