Product Overview

Huangang top grade 3240 epoxy fiberglass cloth laminate sheet is hot-pressed composite insulation panel made of alkali-free glass fiber woven cloth fully impregnated with high-temperature resistant epoxy resin, produced in Henan China under standardized high-pressure laminating production line. Uniform layered internal structure brings balanced tensile, bending and compressive strength, stable dimensional accuracy under long-term high-temperature working environment without warpage or deformation. The finished yellow epoxy board owns core superior electrical performance: ultra-high dielectric breakdown strength, low water absorption, excellent arc resistance and tracking resistance, completely isolating electric current leakage risk for power equipment. It also features acid, alkali and chemical solvent corrosion resistance, flame retardant self-extinguishing property and good machinability for all CNC processing operations. Our factory supports one-stop customized CNC deep machining: precision cutting, hole drilling, edge milling, slotting, stamping and complex special-shaped component forming according to engineering drawings. Compared with ordinary plastic insulation sheets, 3240 epoxy fiberglass laminate combines high mechanical rigidity and superior insulation performance, becoming the standard insulation substrate for medium and high voltage electrical equipment, electronic transformers, new energy power modules and precision mechanical insulating parts.

Core Technical Parameters

Brand: Huangang

Place of Origin: Henan, China

Product Name: Super premium 3240 epoxy resin glass fiber cloth laminate sheet / CNC machined electrical insulation component board

Production Craft: Alkali-free glass cloth impregnated epoxy resin, high temperature high pressure integral laminating molding

Raw Material: Epoxy resin + alkali-free woven glass fiber cloth

Standard Appearance Color: Bright yellow

Core Comprehensive Performance: High temperature resistance, high dielectric insulation strength, arc resistant, anti-corrosion, flame retardant, high mechanical rigidity, low water absorption

Deep Processing Service: Full CNC machining (cutting, drilling, milling, slotting, custom special shape forming)

Core Application Scenarios: Electrical power equipment, electronic transformer, new energy module, precision machinery insulation component manufacturing

Core Product Advantages

1. Standard 3240 Laminated Layered Stable Structure

   Uniform multi-layer glass cloth hot pressing eliminates internal loose voids, consistent mechanical and electrical performance of every sheet, no local insulation failure under long-term load and high temperature.

2. Ultra-High Electrical Insulation & Arc Resistance

   High dielectric breakdown strength effectively insulates medium/high voltage circuits, outstanding arc resistance avoids surface carbonization under electric arc impact, safe for power cabinet and transformer internal insulation.

3. Wide High Temperature Stable Working Range

   Maintain stable physical and insulation performance under continuous high-temperature operation, no softening, deformation or insulation attenuation, suitable for long-running heat-generating electrical equipment.

4. Excellent Full CNC Machinability

   Uniform compact texture supports all precision CNC processing: fine drilling, deep slotting, complex curved surface milling, no burr, crack or layer separation during high-speed machining.

5. Permanent Multi-Medium Chemical Anti-Corrosion

   Resist weak acid, weak alkali, industrial solvent and humid air erosion, low water absorption prevents insulation drop caused by moisture absorption in damp workshop environment.

6. Flame Retardant Self-Extinguishing Safety Formula

   Epoxy resin system with flame retardant additive stops fire spread automatically, meets electrical equipment fire safety standards for power plant, distribution cabinet and battery module applications.

7. Custom One-Stop CNC Component Processing

   Independent precision CNC workshop completes finished insulation parts per customer drawings, customers receive ready-to-assemble components without secondary outsourcing machining.

8. Multi-Scenario Universal Electrical Industry Compatibility

   Suitable for power distribution cabinet insulation baffle, transformer coil support spacer, new energy battery insulation plate, motor end cover insulating pad, precision test fixture insulating substrate and high voltage electrical equipment structural components.

Wide Application Scope

This premium 3240 epoxy fiberglass laminate sheet serves as core insulation substrate and CNC machined component material for the following electrical, electronic and new energy industrial fields:

1. Power distribution & high voltage equipment: High/low voltage switch cabinet insulation partition, circuit breaker insulating support plate, transformer coil spacer baffle

2. Electronic transformer manufacturing: Power transformer insulation skeleton, inductance coil insulation liner, high-frequency transformer insulating base plate

3. New energy industry: Lithium battery module insulation separator, photovoltaic inverter internal insulation board, energy storage cabinet insulating structural parts

4. Precision machinery & test equipment: Test fixture insulating substrate, automated equipment insulation positioning block, precision instrument anti-interference insulating pad

5. Motor & electrical appliance production: Motor stator insulation end plate, household electrical appliance internal insulating support, heating equipment high temperature resistant insulation parts