FR4 Epoxy Resin Sheet Insulation Board for High Voltage Epoxy Fiberglass Sheet lithium-ion Battery Pack manufacturer

As a professional manufacturer of high-performance insulation materials, we take pride in our FR4 Epoxy Resin Sheet. This Epoxy Resin Sheet is specifically engineered for high-voltage environments and lithium-ion battery packs. Its core advantage lies in its outstanding electrical insulation properties, including high dielectric strength and superior arc resistance, ensuring critical safety in dense battery modules. Additionally, this Epoxy Resin Sheet offers excellent mechanical strength, low moisture absorption, and flame-retardant performance (UL94 V-0), making it the ideal structural and insulating component for high-voltage epoxy fiberglass applications in modern energy storage systems.

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PRODUCTS

YEAR

Established In 2007

㎡

Production Facility 16000 ㎡

Monthly Production: 100+ Tonnes

ABOUT US

Guangdong Weishi New Materials Co., Ltd. is a modern composite materials manufacturer integrating production and trade. Founded in October 2007 in Heyuan's financial eco - city, the factory covers 20 acres with a building area of over 16,000㎡ and has three standard workshops. Over 18 years, it has grown to have 10 engineers, 60+ technical staff, and a monthly output of 100+ tons.

As one of Guangdong's early composite materials producers, it mainly makes FR4 fiberglass, epoxy resin, anti - static, copper - clad, high - performance dense, and engineering plastic sheets, which are widely used in electronics, electrical equipment, and machinery. The sheets meet or exceed international standards in flatness, thickness tolerance, heat resistance, and electrical resistance. Adhering to the "Integrity, Quality, Service, Innovation" concept, it strives to offer high - quality products and efficient services.

QUALITY CERTIFICATION

With a focus on providing consumers with convenient and efficient home solutions, we have established a strong presence in the market and gained recognition for our high-quality products and exceptional customer service.

APPLICATION FIELDS

CUSTOMER CASES

News

INDUSTRY

August 29, 2026

G11 Fiberglass Sheet Vs FR4 Sheet for Wind Turbine Generator Insulation

Compare G11 fiberglass sheet and FR4 sheet for wind turbine generator insulation. Learn how thermal resistance, flame retardancy, electrical performance, mechanical strength, vibration resistance, and custom machining influence material selection for slot wedges, coil supports, terminal boards, spacers, and other generator insulation components.

August 30, 2026

Top 10 FR4 Epoxy Sheet Manufacturers in China (2026 Updated: Expert Selection Guide)

This guide reviews 10 China-based FR4 epoxy sheet manufacturers for industrial buyers sourcing FR4, G10, G11, 3240 and related insulation laminates. Compare manufacturing focus, customization capability, MOQ flexibility, certifications, quality controls and sourcing risks before selecting a long-term supplier.

August 31, 2026

FR4 Fiberglass Sheet Vs Epoxy Resin Sheet for Semiconductor Equipment

FR4 fiberglass sheet and epoxy resin sheet are both used for electrical insulation in semiconductor equipment, but they serve different engineering purposes. FR4 offers stronger mechanical performance, better dimensional stability, and verified flame-retardant options for structural parts. Epoxy resin sheet provides smoother surfaces, easier machining, and more formulation flexibility for specialized or low-load insulation applications.

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we can realise it and modify it for mass production.

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