Phenolic Laminate Sheets (Bakelite) - Industrial Insulation Guide
Dongguan Chaorong Electronics · Traditional Insulation Materials Expert
Phenolic Laminate Sheets (Bakelite) are traditional insulation materials widely used in transformers, motors, switchgear, and industrial control panels. They offer excellent insulation properties, machinability, and cost advantages.
Classification and Grades
| Grade | Max Temp | Base Material | Applications |
|---|---|---|---|
| XPC (Y-class) | 90°C | Insulating paper | General industrial |
| FMN (A-class) | 105°C | Cotton cloth | Motors, transformers |
| EPGC (E-class) | 120°C | Glass cloth | Power electronics |
Key Specifications
- Dielectric Strength: ≥15 kV/mm (thickness ≥1.6mm)
- Volume Resistivity: ≥1010 Ω·cm
- Dielectric Constant: 3.5-5.0 (50Hz)
- Flexural Strength: ≥100 MPa
- Water Absorption: ≤1%
Applications
Transformer Insulation
Phenolic sheets are used as insulating spacers, end insulation, and core insulation pads in transformers.
Motor Components
Slot wedges, end cap insulation, and bearing insulation sleeves in motors require stable electrical properties and reliable mechanical strength.
Chaorong Electronics stocks all grades of phenolic laminate sheets (XPC/FMN/EPGC) in thickness 0.8mm-50mm. Standard sizes ship within 3-5 working days.