In today’s rapidly developing electrical and electronic industries, high-performance insulation materials play a crucial role in ensuring equipment reliability and safety. Among these materials, EPGC308 epoxy fiberglass sheet stands out for its exceptional combination of mechanical, thermal, and electrical properties. Produced by Qingdao YILONG New Materials Co., Ltd., this advanced laminate has become a preferred choice for a wide range of industrial applications.
What is EPGC308 Epoxy Fiberglass Sheet?
EPGC308 epoxy fiberglass sheet, also known as EPGC308 epoxy fiberglass cloth laminate, is made from chemically treated alkali-free glass cloth impregnated with epoxy resin and laminated under high temperature and pressure. This process results in a rigid, durable, and thermosetting insulating material that fully complies with the IEC 60893 international standard.
Main Characteristics of EPGC308
1.High Mechanical Strength at Elevated Temperatures
EPGC308 maintains excellent mechanical strength and dimensional stability even under high-temperature conditions.
2.Stable Electrical Properties in Humid Environments
The sheet’s electrical insulation remains stable and reliable even under high humidity, ensuring consistent performance in demanding environments.
3.Excellent Heat Resistance
Compared to similar products such as EPGC203, EPGC308 exhibits superior heat resistance, withstanding continuous operation temperatures between 155°C and 180°C.
4.Chemical Corrosion Resistance
EPGC308 performs well in chemically corrosive environments, making it suitable for equipment exposed to industrial chemicals.
5.Radiation Resistance
The material can maintain stable performance under radiation, making it applicable for specialized energy and defense sectors.
Main Applications of EPGC308
1.Electrical and Electronic Equipment
EPGC308 is widely used for manufacturing insulating structural components in H-class motors and high-voltage electrical devices, such as switchgear, transformers, and circuit breakers. Typical components include safety shields, spacers, partitions, insulation brackets, and gaskets.
2.Mechanical Components for High-Temperature Operations
With its excellent thermal endurance, EPGC308 serves as a material for mechanical support structures, including slot wedges, end supports, and axial locating plates in motors and generators.
3.Aerospace and Rail Transportation
Thanks to its high mechanical strength and dielectric stability, EPGC308 is increasingly applied in aircraft and high-speed rail industries, where safety and performance are critical.
4.Electronic Equipment and PCB Structures
EPGC308’s outstanding dielectric and dimensional stability make it ideal for PCB insulation layers, electronic component supports, and packaging materials, especially in high-frequency and high-voltage systems.
5.New Energy Sector
The material is also used in wind power and photovoltaic inverter systems, providing high-strength insulating components that ensure long-term stability under demanding environmental conditions.
Processing and Handling of EPGC308
EPGC308 epoxy fiberglass sheets can be easily machined into parts through processes such as turning, drilling, milling, stamping, and sawing. However, several precautions should be observed:
Avoid moisture absorption during storage and machining; if damp, dry at a low temperature.
Use suitable cutting methods, as laminates differ from metals in thermal conductivity.
Ensure worker protection during processing, as dust and odor may be generated.
After machining, finished products should be kept dry to maintain insulation performance.
Limitations
While EPGC308 offers superior insulation and strength, it also has some limitations:
Relatively low wear resistance, making it less suitable for high-friction applications.
Brittleness under strong impact or vibration, requiring care in installation and use.
Processing precautions, as dust and odor require proper safety measures during machining.
Qingdao YILONG New Materials Co., Ltd. is a professional manufacturer specializing in electrical insulation materials with years of production and technical experience. The company provides a full range of high-quality insulation products, including epoxy fiberglass sheets, mica products, and composite laminates, serving industries such as power, electronics, transportation, and new energy.
For more information, technical support, or product quotations, please contact:
Email: yilong@yilonginsulation.com
Whatsapp: 86 15866869385
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