描述
Fortron FX55T1 is an unfilled, impact-modified polyphenylene sulfide (PPS) grade from Celanese Corporation, featuring high melt viscosity suitable for extrusion and blow molding applications .
This grade is specifically designed to provide significantly improved toughness and impact resistance compared to standard PPS grades, while maintaining the inherent thermal and chemical resistance of PPS. The high melt viscosity ensures excellent melt strength for extrusion processes, enabling the production of profiles, films, and blow-molded components with consistent quality .
Fortron FX55T1 is recommended for under-the-hood automotive applications such as clips and fasteners , as well as industrial components requiring chemical resistance and durability. The material offers excellent chemical resistance, good flexibility, and short cycle times .
As a linear, semi-crystalline PPS, Fortron FX55T1 provides high dimensional stability, low coefficient of friction, low shrinkage, excellent mechanical properties, creep resistance at high temperatures, a high continuous use temperature (160°C to 240°C), and very low moisture absorption. The material is inherently flame-retardant, halogen-free, and RoHS compliant.
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 FX55T1
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Unfilled Grade – Pure PPS with impact modification for enhanced toughness
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High Melt Viscosity – Excellent melt strength for extrusion and blow molding processes
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Impact Modified – Significantly improved toughness; Charpy notched impact of 60 kJ/m² at 23°C and 35 kJ/m² at -30°C
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High Elongation – Elongation at break of 40%, providing excellent ductility
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Good Mechanical Properties – Tensile modulus of 2,300 MPa; yield stress of 55 MPa
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Good Heat Resistance – Melting temperature of 280°C
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Inherent Flame Retardancy – V-0 flame retardant (halogen-free)
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Excellent Chemical Resistance – Good resistance to chemicals and corrosion
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Very Low Moisture Absorption – <0.02% water absorption, ensuring dimensional stability
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Good Dimensional Stability – Low shrinkage: 1.5% parallel, 1.6% transverse
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Versatile Processing – Suitable for injection molding, extrusion, and blow molding
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Good Flexibility – Good flexibility for demanding applications
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Durable – Extended service life in demanding environments
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Global Supply – Available across North America, Europe, Asia Pacific, Latin America, Africa & Middle East
Typical Applications for Fortron FX55T1
| Industry | Typical Components & Considerations |
|---|---|
| Automotive Under-Hood | Clips, fasteners, fluid handling components – utilizing chemical resistance, impact strength, and high melt viscosity for extrusion |
| Extrusion | Profiles, films, tubes, sheets – utilizing high melt viscosity and high elongation |
| Blow Molding | Hollow components – utilizing excellent melt strength and impact resistance |
| Industrial | Chemical processing components, pump parts, seals, gaskets – requiring corrosion resistance and durability |
| Electrical & Electronics | Connectors, housings, coil bobbins – requiring V-0 flammability and impact resistance |
Typical Properties of Fortron FX55T1
| Property | Value | Test Method |
|---|---|---|
| Physical | ||
| Density | 1.25 g/cm³ (1250 kg/m³) | ISO 1183 |
| Molding Shrinkage – Parallel | 1.5% | ISO 294-4 |
| Molding Shrinkage – Transverse | 1.6% | ISO 294-4 |
| Maximum Moisture Content | 0.02% | |
| Mechanical | ||
| Tensile Modulus | 2,300 MPa | ISO 527 |
| Yield Stress | 55 MPa | ISO 527 |
| Yield Strain | 6% | ISO 527 |
| Elongation at Break | 40% | ISO 527-2/50 |
| Impact | ||
| Charpy Notched Impact (23°C) | 60 kJ/m² | ISO 179/1eA |
| Charpy Notched Impact (-30°C) | 35 kJ/m² | ISO 179/1eA |
| Thermal | ||
| Melting Temperature | 280°C | ISO 11357 |
| HDT @ 1.80 MPa | 100°C | ISO 75-1/-2 |
| Vicat Softening Temperature | 160°C | ISO 306 |
| CTE – Parallel | 80 × 10⁻⁶/K | ISO 11359 |
| CTE – Transverse | 95 × 10⁻⁶/K | ISO 11359 |
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 FX55T1 .
📌 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 FX55T1. Request the latest official TDS from our sales team.
Processing Guidelines for Fortron FX55T1
| Step | Process |
|---|---|
| Processing Methods | Injection Molding, Extrusion, Blow Molding |
| Drying Recommended | Yes |
| Drying Temperature | 130°C |
| Drying Time (Dehumidified Dryer) | 2 – 4 hours |
| Alternate Drying | 80°C, approx. 6 hours |
| Suggested Max Moisture | ≤ 0.02% |
| Dew Point Requirement | < -30°C |
| Optimum Melt Temperature | 330°C |
| Min. Melt Temperature | 310°C |
| Max. Melt Temperature | 340°C |
| Optimum Mold Temperature | 120°C |
| Min. Mold Temperature | 80°C |
| Max. Mold Temperature | 160°C |
| Screw Tangential Speed | 0.2 – 0.3 m/s |
| Hold Pressure Range | 30 – 70 MPa |
| Back Pressure | 3.5 MPa |
| Storage | Store in original, sealed packaging in a cool, dry place away from direct sunlight |
Critical Processing Warnings for Fortron FX55T1
⚠️ Drying Requirement – Fortron FX55T1 requires drying prior to processing. Because of the necessary low maximum residual moisture content, the use of dry air dryers is recommended. The dew point should be < -30°C. The time between drying and processing should be as short as possible .
⚠️ 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 310–340°C, with an optimum of 330°C . Avoid exceeding 340°C to prevent material degradation.
⚠️ Mold Temperature – A wide range of mold temperatures (80–160°C) is possible, with an optimum of 120°C . Higher mold temperatures promote higher crystallinity and better heat resistance.
⚠️ Impact Modified Grade – This grade is specifically formulated for impact resistance and toughness. Processing parameters should be optimized to maintain impact modification performance .
⚠️ High Melt Viscosity – This grade features high melt viscosity suitable for extrusion and blow molding . For extrusion and blow molding, adjust parameters based on specific equipment and final product requirements.
⚠️ 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 FX55T1 vs. Fortron FX32T4
| Feature | Fortron FX55T1 | Fortron FX32T4 |
|---|---|---|
| Key Feature | High melt viscosity for extrusion | High flow for injection molding |
| Primary Processing | Extrusion, Blow Molding, Injection | Injection Molding |
| Charpy Notched Impact (23°C) | 60 kJ/m² | 10 kJ/m² |
| Charpy Notched Impact (-30°C) | 35 kJ/m² | — |
| Elongation at Break | 40% | 30% |
| HDT @ 1.80 MPa | 100°C | 100°C |
| Density | 1.25 g/cm³ | ~1.31 g/cm³ |
| Mold Temperature Range | 80 – 160°C | 70 – 160°C |
Related Products
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PPS/Polyphenylene Sulfide – View our full range of PPS products
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Fortron FX32T4 – Impact modified unfilled PPS with high flow
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Fortron FX40T1 – Impact-modified high toughness unfilled PPS
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Fortron FX20T1 – Impact modified unfilled PPS with good flowability
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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 FX55T1
| Document Type | Description & Source |
|---|---|
| Manufacturer Official TDS | Complete physical, thermal, and mechanical properties of Fortron FX55T1 |
| Manufacturer Official SDS | GHS-compliant safety documentation |
| COA (Certificate of Analysis) | Batch-specific quality certification for Fortron FX55T1 |
| UL Yellow Card | UL safety certification |
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 FX55T1) and document type you require.
FAQ about Fortron FX55T1
Q1: What is Fortron FX55T1?
A: Fortron FX55T1 is an unfilled, impact-modified polyphenylene sulfide (PPS) grade from Celanese with high melt viscosity, suitable for extrusion and blow molding applications .
Q2: What are the key features of Fortron FX55T1?
A: Unfilled; impact-modified; high melt viscosity; Charpy notched impact 60 kJ/m²; tensile modulus 2,300 MPa; HDT 100°C; V-0 flame retardant; excellent chemical resistance; elongation at break 40% .
Q3: What are the typical applications for Fortron FX55T1?
A: Automotive under-hood components (clips, fasteners), extrusion (profiles, films, tubes), blow molding, industrial chemical processing parts, and electrical components .
Q4: What is the recommended drying condition for Fortron FX55T1?
A: Dry at 130°C for 2–4 hours using a dehumidified air dryer with dew point < -30°C. Maximum residual moisture should be ≤ 0.02% .
Q5: What is the density of Fortron FX55T1?
A: 1.25 g/cm³ (1250 kg/m³) .
Q6: What is the HDT @ 1.80 MPa of Fortron FX55T1?
A: 100°C .
Q7: What regions is Fortron FX55T1 available in?
A: North America, Europe, Asia Pacific, Latin America, Africa & Middle East .
Q8: Is Fortron FX55T1 flame retardant?
A: Yes, it is inherently flame-retardant (V-0).
Q9: Is Fortron FX55T1 suitable for extrusion?
A: Yes, it is specifically designed with high melt viscosity for extrusion and blow molding .
Q10: What is the Charpy notched impact strength of Fortron FX55T1?
A: 60 kJ/m² at 23°C and 35 kJ/m² at -30°C .
Q11: What is the elongation at break of Fortron FX55T1?
A: 40% .
Q12: Is Fortron FX55T1 suitable for blow molding?
A: Yes, it can be processed by blow molding .
Q13: What is the Vicat softening temperature of Fortron FX55T1?
A: 160°C .
Q14: Is Fortron FX55T1 RoHS compliant?
A: Yes, it complies with RoHS and other environmental regulations.
Q15: What is the tensile modulus of Fortron FX55T1?
A: 2,300 MPa .
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Sample Policy:
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Samples of Fortron FX55T1 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 FX55T1 . 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 FX55T1 as the definitive specification.


