描述
Fortron 4665B6 is a 65% mineral and glass fiber reinforced polyphenylene sulfide (PPS) injection molding grade from Celanese Corporation. This grade features a high Comparative Tracking Index (CTI) , making it particularly suitable for applications requiring resistance to high voltage. The balanced mineral-to-glass fiber ratio provides very low warpage, excellent dimensional stability, and outstanding electrical properties .
As a linear, semi-crystalline PPS, Fortron 4665B6 is relatively impermeable to gases, hydrocarbons, and other liquids compared to other materials. It provides high dimensional stability, low coefficient of friction, low shrinkage, excellent mechanical properties, a high continuous use temperature (160°C to 240°C), and very low moisture absorption .
This grade offers high hardness, high rigidity, and excellent resistance to corrosion, hydrolysis, heat, oxidation, and paraffin buildup. It shows excellent chemical resistance to all solvents below 200°C, acids, bases, typical and alternative automotive fuels, and petroleum fluids at elevated temperatures . The material is RoHS, PFOS, and PFOA compliant and is suitable for lead-free soldering and metal replacement applications .
The material meets Continental TST N 055 58.01 automotive specification and carries UL Yellow Card certification (E107854) .
For more PPS grades and technical information, please visit our PPS/Polyphenylene Sulfide product page. You can also explore Celanese’s official Fortron PPS portfolio for additional manufacturer insights.
Key Features of Fortron 4665B6
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65% Mineral/Glass Reinforcement – Exceptional stiffness, dimensional stability, and low warpage
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High CTI (250) – High Comparative Tracking Index for high-voltage applications requiring electrical resistance
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Very Low Warpage – Balanced mineral/glass ratio minimizes part distortion
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Excellent Heat Resistance – HDT of 270°C at 1.80 MPa; melting temperature of 280°C
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High Stiffness – Tensile modulus of 17,300 MPa
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Inherent Flame Retardancy – V-0 at 0.8mm and 1.5mm thickness
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Good Electrical Properties – Volume resistivity >1×10¹³ Ω·m; dielectric strength 25 kV/mm
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Excellent Chemical Resistance – Resists solvents, acids, bases, and automotive fuels below 200°C
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Very Low Moisture Absorption – 0.02% water absorption
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Automotive Approved – Meets Continental TST N 055 58.01 specification
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Regulatory Compliance – RoHS, PFOS, and PFOA compliant
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Global Supply – Available across North America, Europe, Asia Pacific, Latin America, Africa & Middle East
Typical Applications for Fortron 4665B6
| Industry | Typical Components & Considerations |
|---|---|
| Electrical & Electronics | Lamp sockets, housings, position frames, high-voltage connectors – requiring high CTI and V-0 flammability |
| Automotive | Under-the-hood components, sensors, high-voltage connectors – meeting Continental specification |
| High-Voltage Components | Applications requiring resistance to high voltage and tracking |
| Metal Replacement | Applications requiring high stiffness, dimensional stability, and electrical insulation |
| Lead-Free Soldering | Electronic components suitable for lead-free soldering processes |
Typical Properties of Fortron 4665B6
| Property | Value | Test Method |
|---|---|---|
| Physical | ||
| Density | 2.03 g/cm³ (2030 kg/m³) | ISO 1183 |
| Water Absorption (Saturation) | 0.02% | Sim. to ISO 62 |
| Molding Shrinkage – Parallel | 0.2% | ISO 294-4 |
| Molding Shrinkage – Transverse | 0.6% | ISO 294-4 |
| Mechanical | ||
| Tensile Modulus | 17,300 MPa | ISO 527 |
| Tensile Stress at Break | 110 – 125 MPa | ISO 527 |
| Tensile Strain at Break | 1.2% | ISO 527 |
| Flexural Modulus | 16,000 MPa | ISO 178 |
| Impact | ||
| Charpy Notched Impact (23°C) | 6 kJ/m² | ISO 179/1eA |
| Charpy Unnotched Impact (23°C) | 18 kJ/m² | ISO 179/1eU |
| Izod Notched Impact (23°C) | 5.0 kJ/m² | ISO 180 |
| Thermal | ||
| Melting Temperature | 280°C | ISO 11357 |
| Glass Transition Temperature | 90°C | ISO 11357 |
| HDT @ 1.80 MPa | 270°C | ISO 75 |
| HDT @ 8.00 MPa | 215°C | ISO 75 |
| CTE – Parallel | 20 × 10⁻⁶/K | ISO 11359 |
| CTE – Transverse | 25 × 10⁻⁶/K | ISO 11359 |
| Electrical | ||
| Volume Resistivity | >1×10¹³ Ω·m | IEC 62631 |
| Surface Resistivity | >1×10¹⁵ Ω | IEC 62631 |
| Dielectric Strength | 25 kV/mm | IEC 60243 |
| Relative Permittivity (1MHz) | 5.3 | IEC 62631 |
| Dissipation Factor (1MHz) | 20 × 10⁻⁴ | IEC 62631 |
| Comparative Tracking Index (CTI) | 250 | IEC 60112 |
| Flammability | ||
| Flammability @ 0.8mm | V-0 | UL 94 |
| Flammability @ 1.5mm | V-0 | UL 94 |
Important Notes on Typical Data
📌 Values are typical – The data listed above is sourced from manufacturer data sheets for reference only and does not constitute binding product specifications for Fortron 4665B6.
📌 Batch variations – Batch-to-batch deviations may exist. For critical applications, validate performance with batch-specific COA certificates.
📌 Final performance – Actual performance depends on processing conditions and part design. Refer to ISO testing standards for detailed methodology.
📌 Authoritative reference – The manufacturer’s official TDS shall serve as the definitive technical reference for Fortron 4665B6. Request the latest official TDS from our sales team.
Processing Guidelines for Fortron 4665B6
| Step | Process |
|---|---|
| Processing Methods | Injection Molding |
| Drying Recommended | Yes |
| Drying Temperature | 130 – 140°C |
| Drying Time | 3 – 4 hours |
| Suggested Max Moisture | ≤ 0.02% |
| Dew Point Requirement | ≤ -30°C |
| Melt Temperature Range | 320 – 340°C |
| Mold Temperature | 140 – 160°C |
| Manifold / Hot Runner Temperature | 330 – 340°C |
| Ejection Temperature | 223°C |
| Hold Pressure | 30 – 70 MPa |
| Storage | Store in original, sealed packaging in a cool, dry place away from direct sunlight |
Critical Processing Warnings for Fortron 4665B6
⚠️ Drying Requirement – Fortron 4665B6 requires drying prior to processing. Predrying in a dehumidified air dryer at 130–140°C for 3–4 hours is recommended. The time between drying and processing should be as short as possible. Use of dry air dryers with dew point ≤ -30°C is recommended .
⚠️ Moisture Control – Maximum residual moisture content should be ≤ 0.02% . Proper drying is essential to prevent void formation and ensure optimal part quality.
⚠️ Melt Temperature – The recommended melt temperature range is 320–340°C. Avoid exceeding 340°C to prevent material degradation .
⚠️ Mold Temperature – Minimum mold wall temperature of 140°C is required to achieve maximum crystallizability .
⚠️ Highest Filler Content Grade – With a density of 2.03 g/cm³, this grade has the highest filler content in the Fortron PPS portfolio. This requires careful consideration for equipment wear and proper screw design.
⚠️ High CTI Characteristics – This grade is specifically designed for high-voltage applications requiring resistance to tracking. Ensure proper part design to maximize the material’s high CTI performance .
⚠️ Storage – Store in original, sealed packaging in a cool, dry place away from direct sunlight. For subsequent storage, the material should be stored dry until processed .
Comparison: Fortron 4665B6 vs. Fortron 4332L6
| Feature | Fortron 4665B6 | Fortron 4332L6 |
|---|---|---|
| Filler Content | 65% Mineral/Glass | Glass/Mineral Reinforced |
| Key Feature | High CTI (250) + Very low warpage | Highest tensile modulus (22,500 MPa) |
| Tensile Modulus | 17,300 MPa | 22,500 MPa |
| Tensile Strength | 110-125 MPa | 160 MPa |
| HDT @ 1.80 MPa | 270°C | 270°C |
| Density | 2.03 g/cm³ | 1.95 g/cm³ |
| CTI | 250 | — |
| Warpage | Very low | Low |
| Primary Application | High-voltage electronics | High-load structural components |
| Automotive Spec | CONTINENTAL TST N 055 58.01 | BMW GS 93016 |
Related Products
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PPS/Polyphenylene Sulfide – View our full range of PPS products
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Fortron 4332L6 – Ultra-high stiffness glass/mineral reinforced PPS
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Fortron 4184L6 – 53% mineral/glass reinforced PPS, easy flow grade
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Fortron 1140L6 – 40% glass reinforced PPS, easy flow grade
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Explore Engineering Plastics – Browse all engineering plastic materials
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About Our Company – Learn more about our supply capabilities and quality assurance
Technical Documents for Fortron 4665B6
| Document Type | Description & Source |
|---|---|
| Manufacturer Official TDS | Complete physical, thermal, and mechanical properties of Fortron 4665B6 |
| Manufacturer Official SDS | GHS-compliant safety documentation |
| COA (Certificate of Analysis) | Batch-specific quality certification for Fortron 4665B6 |
| UL Yellow Card | UL safety certification (E107854) |
| Automotive Specification | CONTINENTAL TST N 055 58.01 compliance documentation |
Request any document above by:
📧 Email: ruiqingchem@gmail.com
📝 Online form: Our contact page
We reply within one working business day. Please clearly state product (Fortron 4665B6) and document type you require.
FAQ about Fortron 4665B6
Q1: What is Fortron 4665B6?
A: Fortron 4665B6 is a 65% mineral and glass fiber reinforced PPS injection molding grade from Celanese, featuring a high CTI (250) and very low warpage for high-voltage electronic applications .
Q2: What does “B6” in the grade designation mean?
A: The “B6” suffix indicates this grade is available in granular powder/flake form, similar to other B-series Fortron products.
Q3: What are the key features of Fortron 4665B6?
A: 65% mineral/glass reinforcement; high CTI (250); very low warpage; tensile modulus 17,300 MPa; HDT 270°C; V-0 at 0.8mm; excellent chemical resistance; meets Continental automotive specification .
Q4: What are the typical applications for Fortron 4665B6?
A: Electronic components such as lamp sockets, housings, position frames, high-voltage connectors, and automotive components requiring high CTI and dimensional stability .
Q5: What is the recommended drying condition for Fortron 4665B6?
A: Dry at 130–140°C for 3–4 hours using a dehumidified air dryer with dew point ≤ -30°C. Maximum residual moisture should be ≤ 0.02% .
Q6: What is the density of Fortron 4665B6?
A: 2.03 g/cm³ (2030 kg/m³) .
Q7: What is the HDT @ 1.80 MPa of Fortron 4665B6?
A: 270°C .
Q8: What regions is Fortron 4665B6 available in?
A: North America, Europe, Asia Pacific, Latin America, Africa & Middle East .
Q9: Is Fortron 4665B6 flame retardant?
A: Yes, V-0 at 0.8mm and 1.5mm thickness (UL 94) .
Q10: What is the CTI of Fortron 4665B6?
A: The Comparative Tracking Index (CTI) is 250 .
Q11: What automotive specifications does Fortron 4665B6 meet?
A: CONTINENTAL TST N 055 58.01 .
Q12: What is the difference between Fortron 4665B6 and Fortron 4332L6?
A: Fortron 4665B6 has higher filler content (65% vs. glass/mineral), higher density (2.03 vs. 1.95 g/cm³), and features a high CTI (250) with very low warpage for high-voltage electronics applications. Fortron 4332L6 offers higher tensile modulus (22,500 MPa) and higher tensile strength (160 MPa) for ultra-high stiffness structural applications .
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Sample Policy:
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Samples of Fortron 4665B6 are for laboratory validation tests only, not for production use.
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Buyer bears international sample-shipping freight.
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If bulk-product performance deviates from sample reference, the manufacturer’s official TDS serves as the authoritative benchmark.
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After-Sales Support
| Service | Details |
|---|---|
| Quality Inspection Period | All quality-related claims must be submitted within 7 working days after delivery, supported by test data and photographic evidence. |
| Return / Exchange Policy | Confirmed product defects caused by our side trigger replacement or refund. Terms and conditions apply. |
| Logistics Damage | Report shipping damage directly to carrier immediately upon goods receipt. We assist with claim-document preparation. |
| Technical Support | Remote technical guidance available. On-site troubleshooting can be arranged upon special request. |
| Export Documentation | We supply commercial invoice, packing list, bill of lading, COA, and additional compliance certificates on request. |
Disclaimer
DISCLAIMER: All technical data is referenced from original manufacturer typical values for Fortron 4665B6. Our company acts as supplier/trader rather than original manufacturer. Final performance depends on processing conditions and part design. Buyers shall independently validate product suitability for individual applications. Our firm bears no liability for product failure caused by improper processing or improper usage. Always reference the latest manufacturer official TDS of Fortron 4665B6 as the definitive specification.
