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Highly Cost-Effective! 4mm 3240 Yellow Epoxy Sheet

by:ZTELEC     Time: 2025-10-17

In the electrical insulation, machinery manufacturing, and electronics industries, selecting reliable, reasonably priced insulation materials is crucial for both production and use. 4mm 3240 Yellow Epoxy Fiberglass Sheet is a popular material with excellent performance and a high cost-effectiveness. If you’re looking for durable, effective insulation at a reasonable price, this article will detail its advantages, applications, and selection process to help you make the right choice.

3240 Yellow Epoxy Fiberglass Sheet uses epoxy resin as a binder and fiberglass cloth as a reinforcement, pressed under high temperature and high pressure. “3240” is an internationally recognized designation, indicating compliance with stringent electrical and mechanical performance standards. “Yellow” is its common color, making it easy to identify and use.

3240 epoxy sheet

Why Choose 4mm 3240 Epoxy Fiberglass Sheet?

1. Excellent Electrical Insulation

3240 Epoxy Fiberglass Sheet offers high insulation resistance and strong arc resistance. It can be used for insulating components in high-voltage electrical equipment, switchgear, transformers, and other applications, effectively preventing current leakage and short circuits.

2. High Mechanical Strength

Reinforced with glass fiber, this sheet offers high mechanical strength. It resists impact, bending, and abrasion, ensuring long-term, stable operation in a variety of harsh environments.

3. High-Temperature and Chemical-Resistant

Epoxy resin allows the board to withstand temperatures exceeding 120°C and resist chemical corrosion. It is suitable for industrial environments exposed to humidity, high temperatures, or the presence of chemicals.

4. Easy to Process and Customizable

The 4mm thickness is just right, making it easy for processors to cut, drill, and polish. Manufacturers can also customize it to meet customer needs in various sizes and shapes. It is commonly used in molds, fixtures, and support plates.

5. High Cost-Effective

Compared to other high-end insulation materials, 3240 yellow epoxy fiberglass board offers a reasonable price and excellent overall performance. It is suitable for small and medium-sized enterprises.

3240 epoxy sheet

Applications of 4mm 3240 Epoxy Fiberglass Board

1. Electrical Insulation and Support

High and Low Voltage Switchgear and Distribution Boxes: It serves as an insulating base for internal components, supporting busbars and switches to prevent leakage.

Transformers and Motors: It serves as an insulating spacer and frame.

New Energy Equipment: It serves as a mounting base in photovoltaic inverters and charging stations.

2. Mechanical Equipment Components

Gear and Bearing Pads: Used in light-load transmission applications requiring insulation, anti-magnetic properties, and low noise levels.

Jigs and Fixtures: Used as test bed-of-nails and base plates for welding fixtures during electronic product processing.

Wear Plate: Used as guide rail linings and guard plates for mechanical equipment, it offers wear resistance and a low coefficient of friction.

3. Other Structural Parts

It can be used for equipment supports, platform pedals, and other applications requiring moisture and corrosion resistance.

3240 epoxy sheet

How to Choose Cost-Effective 4mm 3240 Yellow Epoxy Fiberglass Sheet?

Check Material Certifications: Buyers should select products that comply with international standards (such as NEMA and IEC) to ensure quality and safety.

Check Surface and Thickness: High-quality sheet materials have a smooth surface, uniform color, and a small thickness tolerance (e.g., 4mm ± 0.2mm). Careful inspection is essential when purchasing.

Compare Prices and Suppliers: Buyers can inquire with multiple suppliers, focusing on bulk purchase discounts and after-sales service, and choose reputable manufacturers.

Consider processing requirements: If the plate needs to be processed in a complex manner later, the purchaser should give priority to products that are easy to cut and have burr-free edges after processing.

Why are Our Products Your Top Choice?

We specialize in the production and distribution of insulation materials. Our 4mm 3240 yellow epoxy fiberglass board is manufactured in strict accordance with industry standards, offering the following advantages:

Direct supply from the source manufacturer: We are the sole manufacturer, eliminating intermediaries, offering competitive pricing.

Guaranteed quality: Each batch undergoes rigorous testing before shipment to ensure electrical and mechanical performance meets specified standards.

Fast delivery: We support both small trial orders and large-volume customization, ensuring timely delivery without delaying your project.

Professional service: Our team provides technical consultation and after-sales support to help you successfully complete your project.

4mm 3240 yellow epoxy fiberglass board offers excellent insulation, high mechanical strength, and strong temperature resistance, making it the preferred insulation material in many industries. If you’re looking for a cost-effective product, our products can meet your needs. Contact us for the latest quotes and samples, and experience the practical value of high-quality insulation materials!

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