The 3240 Epoxy Sheet is a high-performance insulating material widely recognized for its reliability in demanding electrical, electronic, motor, and mechanical applications. Manufactured from non-alkali fiberglass cloth impregnated with epoxy resin and phenolic resin, and processed through precision heat and hot pressing, this material delivers an excellent balance of dielectric strength, mechanical durability, and environmental resistance.
As industries increasingly require advanced insulation solutions that can withstand complex working conditions, the 3240 Epoxy Sheet has become one of the most trusted materials. At YILONG INSULATION, we specialize in producing and supplying high-quality epoxy sheets, offering consistent performance that meets international standards while providing customized solutions for our global clients.
1. Excellent Dielectric Properties
One of the most valuable advantages of the 3240 Epoxy Sheet is its high dielectric strength, which ensures superior insulation even in high-voltage environments. Its low dielectric constant minimizes energy loss, improving the efficiency of electrical systems. In addition, the sheet demonstrates excellent resistance to electrical tracking, which is critical for long-term operational safety and reliability.
2. Superior Mechanical Strength
Designed for durability, the 3240 Epoxy Sheet offers high tensile and flexural strength, enabling it to withstand mechanical stress without deformation or cracking. Even when exposed to medium temperatures or high humidity, the sheet maintains its structural stability. This makes it a preferred choice in industries where both mechanical performance and insulation integrity are required.
3. Impressive Thermal Properties
Heat dissipation is an important factor in modern electrical equipment. With its high thermal conductivity and heat resistance, the 3240 Epoxy Sheet helps stabilize equipment temperature, preventing overheating and extending service life. This feature is especially valuable for motors, transformers, and electronic components that operate continuously under load.
4. Versatility in Sizes and Colors
To meet diverse industrial needs, the 3240 Epoxy Sheet is manufactured in a wide range of thicknesses from 0.5mm to 150mm, with a standard sheet size of 1020mm x 2020mm. YILONG INSULATION also offers customized dimensions and colors, including natural yellow, red, green, black, or mixed options, allowing flexibility for design and production requirements.
5. Excellent Moisture and Chemical Resistance
Another distinguishing feature is its ability to perform reliably in humid or chemically challenging environments. The material exhibits excellent resistance to moisture absorption and is fully compatible with transformer oil, making it suitable for outdoor applications, humid climates, and equipment in contact with oils or chemicals.
The 3240 Epoxy Sheet is not just a raw material—it is a solution that enhances performance and safety in multiple industries:
Electrical & Power Industry: Used for insulation components in transformers, switchgear, and circuit breakers.
Electronics: Ideal for printed circuit boards (PCBs), insulation barriers, and high-voltage devices.
Motors & Generators: Provides structural stability and heat resistance for coil supports and slot wedges.
Mechanical Applications: Serves as a strong, lightweight, and corrosion-resistant alternative to metals in certain designs.
At YILONG INSULATION, we are dedicated to delivering high-quality insulation materials backed by more than a decade of expertise in fiberglass composites and epoxy laminates. With an established reputation in both domestic and international markets, our products are exported to over 30 countries across Europe, North America, Latin America, and Asia.
Our advantages include:
Reliable Quality Control – Strict adherence to IEC and NEMA standards.
Flexible Customization – Sizes, thicknesses, and colors tailored to customer requirements.
Competitive Pricing – Efficient production and raw material supply chains allow us to offer cost-effective solutions.
Global Service Network – Responsive technical support and fast logistics for international customers.
By choosing YILONG INSULATION 3240 Epoxy Sheets, industries benefit from a material that combines advanced performance, durability, and adaptability, ensuring long-term value in critical applications.
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