PBT GF20 Technical Data (Estimated Typical Values)
| Property | Value | Test Standard |
|---|---|---|
| Glass Fiber Content | 20% | ISO 1172 |
| Tensile Strength | 100 – 120 MPa | ISO 527 |
| Flexural Modulus | 7,500 – 9,000 MPa | ISO 178 |
| Notched Impact Strength | 6 – 8 kJ/m² | ISO 180 |
| HDT @1.8 MPa | 200 – 210 °C | ISO 75 |
| Comparative Tracking Index (CTI) | 575 V | IEC 60112 |
PBT GF Series Performance Comparison Table (Estimated Typical Values)
| Property | PBT GF10 | PBT GF15 | PBT GF20 | PBT GF30 | PBT GF40 | PBT GF50 |
|---|---|---|---|---|---|---|
| Glass Fiber Content | 10% | 15% | 20% | 30% | 40% | 50% |
| Tensile Strength | 70 – 85 MPa | 85 – 100 MPa | 100 – 120 MPa | 120 – 140 MPa | 135 – 155 MPa | 150 – 170 MPa |
| Flexural Modulus | 5,000 – 6,500 MPa | 6,500 – 7,800 MPa | 7,500 – 9,000 MPa | 9,000 – 11,000 MPa | 11,000 – 13,000 MPa | 13,000 – 16,000 MPa |
| Notched Impact Strength | 5 – 7 kJ/m² | 5.5 – 7.5 kJ/m² | 6 – 8 kJ/m² | 7 – 9 kJ/m² | 6.5 – 8.5 kJ/m² | 6 – 8 kJ/m² |
| HDT @1.8 MPa | 180 – 195 °C | 190 – 205 °C | 200 – 210 °C | 210 – 220 °C | 215 – 225 °C | 220 – 230 °C |
| CTI (Comparative Tracking Index) | 600 V | 600 V | 575 V | 550 V | 525 V | 500 V |
| Key Profile | Cost-effective stiffness & fast cycles | Balanced entry-level for technical parts | Precision & excellent surface finish | Best balance of strength, heat & electricals | High rigidity for demanding structural parts | Maximum stiffness for metal replacement |
PBT GF20 Key Advantages
✅ Balanced Mechanical & Electrical Profile: Delivers significantly enhanced strength and stiffness over GF10, while preserving excellent electrical insulation and superior surface finish.
✅ Exceptional Dimensional Precision: Features extremely low and predictable molding shrinkage, which is crucial for producing complex, tight-tolerance components such as gears and precision structural parts.
✅ Reliable Chemical & Heat Resistance: Inherits the inherent resistance of PBT to a wide range of chemicals and solvents, coupled with improved thermal performance for more demanding operating environments.
Industry Applications:
Explore the PBT Glass Fiber Series in Detail
Click on the links below to view comprehensive technical data, key advantages, and application details for each specific grade.
| Grade | Best For | Overview | Full Details |
|---|---|---|---|
| PBT GF10 | Cost-effective enhancement of stiffness, dimensional stability & speed in electrical components. | The most accessible GF grade, offering faster cycle times, improved rigidity, and excellent electrical insulation over unfilled PBT. | View PBT GF10 Full Data Sheet → |
| PBT GF20 | High-precision structural parts demanding stability, smooth surface finish & good electrical properties. | A balanced performer, excelling in dimensional accuracy, surface quality, and a robust property profile for technical components. | View PBT GF20 Full Data Sheet → |
| PBT GF30 | High-strength components under thermal & mechanical stress with stringent electrical requirements. | The industry benchmark, providing an optimal balance of high mechanical strength, thermal resistance, and unwavering dielectric properties. | View PBT GF30 Full Data Sheet → |
| PBT GF40 | Ultra-stiff, high-load applications where minimal creep and maximum dimensional stability are critical. | Engineered for maximum rigidity and long-term dimensional stability under continuous load, even in elevated temperatures. | View PBT GF40 Full Data Sheet → |
| PBT GF50 | Maximum mechanical performance for metal replacement in demanding electrical/structural applications. | The pinnacle grade, delivering peak strength, stiffness, and heat resistance for the most demanding technical applications. | View PBT GF50 Full Data Sheet → |
Powering Innovation Across Industries
| Industry | Key Applications |
|---|---|
| Automotive | Engine covers, intake manifolds, structural brackets, sensor housings, connectors. Explore Automotive Applications → |
| Electrical & Electronics | Circuit breakers, switches, connector housings, insulating components. Discover E&E Solutions → |
| Industrial Equipment | Gears, bearings, machine housings, rollers, mechanical components. See Industrial Uses → |
How to Choose the Right PBT GF Grade?
In simple terms:
For a cost-effective enhancement of stiffness, dimensional stability, and faster cycle times in electrical housings, connectors, or basic structural parts, consider PBT GF10.
For the optimal balance of strength, precision, surface finish, and excellent electrical properties in demanding technical components like gears, automotive sensors, or high-quality connectors, choose PBT GF30. It is the performance benchmark for most structural electrical applications.
For the ultimate stiffness, strength, and long-term dimensional stability under high continuous load and heat in metal replacement or high-load structural applications, consider PBT GF50.
Unsure which is perfect for your part? Describe your application to our engineers for a tailored recommendation: https://nylonplastic.com/contact/
Why Choose Us?
PBT GF20 FAQ
Q1: When should I choose PBT GF20 over GF10?
Choose PBT GF20 when your application requires higher mechanical strength, greater rigidity, and better thermal resistance than GF10 can provide, but still demands excellent dimensional stability, good surface finish, and strong electrical insulation. It‘s ideal for more structurally demanding electrical parts.
Q2: Can PBT GF20 be used for automotive components?
Absolutely. Its combination of heat resistance (under-the-hood capable), good chemical resistance to fuels and oils, dimensional stability, and electrical properties makes it suitable for various automotive applications such as sensor housings, connectors, and ignition system components.
Q3: Does the higher fiber content affect the surface finish?
With proper processing, PBT GF20 can achieve a very good surface finish. Key factors include using a sufficiently high mold temperature (70-90°C) to promote surface gloss and ensuring gates are properly sized and positioned to minimize visible weld lines.
