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KINGFA PBT-G30
- 30% glass fiber reinforced PBT
- High strength and stiffness for demanding applications
- Excellent dimensional stability and low warpage
- High heat resistance for elevated temperature environments
- HB flame rating for electrical safety
- Good electrical insulation for reliable performance
Product Overview
KINGFA PBT-G30 is a 30% glass fiber reinforced Polybutylene Terephthalate (PBT) resin known for its high mechanical strength, excellent dimensional stability, and good heat resistance.
This resin is designed for high-performance applications in the automotive, electrical, appliance, and industrial sectors. It offers low shrinkage, low warpage, and excellent electrical properties, making it ideal for applications such as gears, bearings, connectors, housings, and electrical components that require durability and high precision.
Key Properties
High Strength & Stiffness: Reinforced with 30% glass fiber for improved mechanical properties
Excellent Dimensional Stability: Low shrinkage and warpage for precision parts
High Heat Resistance: Suitable for high-temperature environments
Good Electrical Insulation: Ideal for electrical and electronic components
HB Flame Rating: Meets basic flame retardancy requirements for safety in electrical applications
Typical Applications
Automotive: Under-hood components, housings, and functional parts
Electrical: Connectors, bobbins, enclosures, and electrical components
Appliances: Housings, structural parts, and components for consumer goods
Industrial: Gears, bearings, mechanical components, and structural parts
Technical Data (Typical Values)
Physical Properties
| Property | Value | Test Standard |
|---|---|---|
| Density | 1.53 g/cm³ | ISO 1183 |
| Molding Shrinkage (Flow) | 0.30 % | ISO 2577 |
| Molding Shrinkage (Across Flow) | 0.90 % | ISO 2577 |
| Water Absorption (Equilibrium, 23°C, 50% RH) | 0.060 % | ISO 62 |
Mechanical Properties
| Property | Value | Test Standard |
|---|---|---|
| Tensile Strength | 125 MPa | ISO 527-2/10 |
| Tensile Strain at Break | 2.8 % | ISO 527-2/10 |
| Flexural Strength | 190 MPa | ISO 178 |
| Flexural Modulus | 8400 MPa | ISO 178 |
| Notched Izod Impact (23°C) | 11 kJ/m² | ISO 180 |
| Rockwell Hardness (R-Scale) | 120 | ISO 2039-2 |
Thermal Properties
| Property | Value | Test Standard |
|---|---|---|
| HDT (0.45 MPa, Unannealed) | 220 °C | ISO 75-2/B |
| HDT (1.8 MPa, Unannealed) | 210 °C | ISO 75-2/A |
Electrical Properties
| Property | Value | Test Standard |
|---|---|---|
| Volume Resistivity | 1.0 × 10¹⁶ Ω·cm | IEC 60093 |
| Electric Strength (2.0 mm, in oil) | 23 kV/mm | IEC 60243-1 |
Flame Properties
| Property | Value | Test Standard |
|---|---|---|
| UL94 Flame Rating | HB | UL 94 |
Processing Guidelines
| Property | Value |
|---|---|
| Drying Temperature | 120–140 °C |
| Drying Time | 4.0–6.0 hr |
| Melt Temperature | 235–255 °C |
| Mold Temperature | 40–120 °C |
| Injection Rate | Moderate–Fast |
Why Choose KINGFA PBT-G30
High Strength & Stiffness: Provides superior mechanical performance for demanding applications
Excellent Dimensional Stability: Low shrinkage and warpage for precision molding
High Heat Resistance: Performs well in high-temperature environments
Good Electrical Insulation: Ideal for electrical components
HB Flame Rating: Meets basic flame retardancy requirements for electrical safety
