Product Overview
4330-2 (FX502) is a glass fiber-reinforced phenolic molding compound compliant with JB 5822-91 standard ¹⁴, featuring modified phenol-formaldehyde resin as base material and alkali-free glass fiber as reinforcement. It excels in dimensional stability, high mechanical strength, and superior electrical insulation, with outstanding moisture resistance and corrosion resistance ⁴. Specifically engineered for humid and harsh operating environments, this thermosetting material can replace copper/aluminum components in certain applications ³, delivering reliable performance for precision-molded parts.
Key Technical Parameters
| Property | Specification | Test Standard |
| Density | 1.7-1.9 g/cm³ | JB/T 5882-1991 / ISO 14526-2 |
| Martens Heat Resistance | ≥280°C | JB/T 5882-1991 |
| Flexural Strength | ≥450 MPa | JB/T 5882-1991 |
| Impact Strength (Charpy) | ≥180 kJ/m² | JB/T 5882-1991 |
| Surface Resistivity | ≥1.0×10¹² Ω | JB/T 5882-1991 |
| Volume Resistivity | ≥1.0×10¹⁰ Ω•m | JB/T 5882-1991 |
| Electrical Strength | ≥14.0 MV/m | JB/T 5882-1991 |
| Water Absorption | ≤20 mg | JB/T 5882-1991 |
Application Fields
- Automotive: Commutators, structural components, and engine bay parts (replaces metal for weight reduction while maintaining strength) ¹³.
- Electronic & Electrical: High-voltage insulation parts, relay housings, and precision electrical components (ideal for humid tropical regions) ⁴.
- General Machinery: Precision mechanical structural parts, pump impellers, and valve bodies (resists corrosion and ensures dimensional accuracy) ¹.
Molding & Supply
- Processing: Suitable for compression molding (150-170°C, 35-40 MPa) with curing time of 1 min/mm thickness ¹³.
- Storage: Keep in cool dry place, shelf life of 12 months from production date ¹. If damp, bake at 90±5°C for 2-4 minutes before use ¹.
- Certifications: Complies with RoHS, UL 94 V-0 flame retardancy, and meets international electrical insulation standards ³⁴.