- FR4 Insulation Sheet
- Customizable
- 100
Product IntroductionEpoxy & fiberglass pultruded insulation sheet is a high-performance laminated sheet composed of epoxy resin as the matrix and ECR glass fiber as the reinforcement. Manufactured through continuous pultrusion technology, it offers superior electrical insulation, excellent mecha
Product details
Product Introduction
Epoxy & fiberglass pultruded insulation sheet is a high-performance laminated sheet composed of epoxy resin as the matrix and ECR glass fiber as the reinforcement. Manufactured through continuous pultrusion technology, it offers superior electrical insulation, excellent mechanical strength, and high thermal resistance. With its dense and uniform internal structure, the sheet remains stable and functional even in harsh conditions, making it ideal for use in electrical systems such as transformers, switchgear, and insulating structural parts.


| Property | Specification |
| Material Composition | Epoxy Resin + ECR Glass Fiber |
| Tensile Strength | ≥ 350 MPa |
| Flexural Strength | ≥ 400 MPa |
| Volume Resistivity | ≥ 1.0 × 10¹³ Ω·cm |
| Dielectric Strength | ≥ 18 kV/mm |
| Water Absorption | ≤ 0.3% |
| Heat Distortion Temp. | ≥ 150ºC |
| Density | 1.85~2.0 g/cm³ |
| Standard Thickness | 3mm, 5mm, 10mm, 12mm, 20mm etc. |
| Color | Yellow-green / Grey / Red (Customizable) |
Performance Features
Excellent Insulation: High dielectric strength for high-voltage equipment.
High Thermal Resistance: Operates reliably in elevated temperatures.
Strong Mechanical Strength: High tensile and flexural strength for structural use.
Moisture & Chemical Resistance: Suitable for outdoor or corrosive environments.
Lightweight & Machinable: Easy to cut, drill, and shape for custom applications.










