Product Overview
4330-1 (FX501) is a glass fiber-reinforced phenolic molding compound engineered for high-performance requirements, combining modified phenol-formaldehyde resin with alkali-free glass fiber reinforcement . It delivers exceptional mechanical strength, superior electrical insulation, and outstanding heat resistance (Martens heat resistance ≥280°C), ideal for harsh operating environments including humid and high-temperature conditions . Compliant with international industry standards, this thermosetting material offers reliable dimensional stability and processability for precision components.
Key Technical Parameters
| Property | Specification | Test Standard |
| Density | 1.60-1.85 g/cm³ | ISO 14526-2 |
| Martens Heat Resistance | ≥280°C | JB/T 5882-1991 |
| Tensile Strength | ≥80 MPa | |
| Flexural Strength | ≥130 MPa | JB/T 5882-1991 |
| Impact Strength (Unnotched) | ≥45 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 |
| Water Absorption | ≤20 mg | JB/T 5882-1991 |
Application Fields
- Automotive: Commutators, clutch components, and engine bay precision parts (resists high temperature and mechanical stress) .
- Electronics: Coil bobbins, relay housings, high-voltage insulation terminals, and microswitch components (excellent electrical insulation performance) .
- Machinery: Precision instrument shells, pump components, and mechanical structural parts (adapts to humid and corrosive environments) .
Molding & Compliance
- Processing: Suitable for compression molding (160-175°C, 25-35MPa) .
- Certifications: Complies with RoHS, UL 94 flame retardancy standards (V-0) and electrical insulation requirements (PTI ≥175) .