Heat-resistant Epoxy Glass Cloth Fiber Board Laminated Rubber Panel Insulating Glass Fiber Material Board, insulation material 3240 board fiberglass epoxy fiberglass sheet

1. Product Overview

Our flagship product, the Heat-Resistant Epoxy Glass Cloth Fiber Board (commonly known as 3240 Board, Epoxy Fiberglass Sheet, or Insulating Glass Fiber Material Board), is a high-performance laminated insulation material engineered for demanding industrial and electrical applications. Crafted through advanced lamination technology, this board combines high-quality electrical-grade alkali-free glass fiber cloth as the base material with premium epoxy phenolic resin as the bonding agent—undergoing precise soaking, baking, and hot-pressing processes to form a uniform, dense, and durable structure.

2. Key Features

• ✔ Exceptional Heat Resistance: Complies with Class B heat resistance standards (continuous operating temperature up to 130°C), maintaining stable mechanical and electrical properties even in high-temperature environments, effectively resisting thermal aging and deformation.
• ✔Superior Insulation Performance: Boasts excellent dielectric strength (rated voltage up to 600V) and low dielectric loss, providing reliable insulation protection for electrical components, preventing leakage and short circuits in high-voltage scenarios.
• ✔Robust Mechanical Strength: Features high tensile strength, impact resistance, and dimensional stability—resisting warping or cracking under external pressure. Its smooth surface enables precise machining (e.g., cutting, drilling) with neat edges and no burrs, supporting customized processing per customer thickness (as required) and size needs.

3. Technical Specifications

4. Applications

• Battery Packs: Insulation layers for lithium-ion/NiMH batteries.
• Electrical: Switchgear, transformer oil barriers, high/low-voltage.
• Tooling & Molds: PCB/ICT, mechanical molds.

5. Why Choose Us?

1. Flexible and diverse products with thousands of product specifications to meet the diverse needs of buyers.
2. OEM and ODM designs and lables are welcome.
3. The minimum order quantity is low and samples can be customized.
4. Short production delivery cycle, fast delivery speed of the entire cabinet.
5. Multiple payment methods facilitate customer payment.
6. Quick response, every inquiry will be replied within 1 hours.
7. Good after-sale service, long product warranty and continual technique support.