描述
Hostaform C 9021 XLE is an ultra low emission POM-C (Polyoxymethylene Copolymer) injection molding grade, genuinely manufactured by Celanese and imported as original product. We supply this grade as an authorized distributor / trader, ensuring full traceability and access to official Celanese technical documentation.
This grade is formulated with Celanese’s proprietary XLE low emission technology, delivering ultra low VOC emissions – with emission according to VDA 275 <1 mg/kg – making it especially suitable for automotive interior applications.
The “XLE” designation stands for Low Emission (LE) , representing Celanese’s commitment to meeting the most stringent automotive interior air quality standards.
It is a medium flowing injection molding gradethat offers high rigidity (2700 MPa tensile modulus), outstanding toughness (6.5 kJ/m² notched impact strength), good heat resistance (100°C HDT), excellent chemical resistance, and low moisture absorption. With regular stock availability, we support both trial orders and bulk shipments for automotive interior and other low-emission applications.
Key Features
Hostaform C 9021 XLE offers the following key performance benefits:
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XLE Ultra Low Emission Technology – Ultra low VOC emissions with VDA 275 <1 mg/kg – among the lowest emission levels available for POM
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Automotive Flammability Compliant – Burning rate according to FMVSS 302 <100 mm/min (1 mm thickness); FMVSS Class B
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High Rigidity & Strength – Tensile modulus of 2700 MPa and yield stress of 65 MPa
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Good Toughness – Charpy notched impact strength of 6.5 kJ/m² at 23°C and 6 kJ/m² at -30°C
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Good Heat Resistance – Heat deflection temperature of 100°C at 1.8 MPa
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Excellent Chemical Resistance – Resistant to solvents, fuels, and strong alkalis; outstanding resistance to moisture and stress cracking
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Excellent Dimensional Stability – Low moisture absorption (0.65% at 23°C/sat) and low CLTE (129 E-6/K parallel)
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High Toughness at Low Temperature – Maintains toughness down to -40°C
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Heavy-Metal Free – Environmentally friendly formulation
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Easy Processing – Medium flow (MVR 8 cm³/10min at 190°C/2.16kg) for injection molding
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Contains Release Agent – Facilitates easy demolding during injection molding
Typical Applications
| Industry | Typical Components & Considerations |
|---|---|
| Automotive Interior | Instrument panel components, air vent louvers, interior trim clips, seat belt components, door handles, mirror housings, glove box components. XLE ultra low emission technology ensures compliance with the most stringent cabin air quality standards (VDA 275 <1 mg/kg). Burning rate <100 mm/min per FMVSS 302. |
| Electrical & Electronics | Connectors, switches, coil formers, precision housings, low VOC components |
| Industrial Machinery | Gears, cams, guide rails, pump valves, conveyor rollers, fasteners |
| Medical | Surgical instruments, drug delivery devices, dental tools, diagnostic equipment components |
| Consumer Goods | Household appliances, furniture mechanisms, sporting equipment, toys |
Explore our full range of engineering plastics solutions for more industry-specific case studies.
Material Advantages
The following material advantages make Hostaform C 9021 XLE the preferred choice for the most demanding automotive interior and low-emission applications:
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XLE Ultra Low Emission Technology – Celanese’s XLE technology delivers ultra low VOC emissions with VDA 275 <1 mg/kg – one of the lowest emission levels available in the industry – meeting the most stringent automotive interior air quality requirements
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Automotive Flammability Compliance – FMVSS 302 Class B with burning rate <100 mm/min (1 mm thickness)
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High Mechanical Performance – Excellent balance of strength (65 MPa yield stress), stiffness (2700 MPa modulus), and toughness (6.5 kJ/m² notched impact)
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Excellent Chemical Resistance – Outstanding resistance to solvents, fuels, strong alkalis, moisture, and stress cracking
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High Toughness at Low Temperature – Maintains toughness and impact resistance even at low temperatures (down to -40°C)
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Good Thermal Stability – Higher stability to thermal and oxidative degradation compared to acetal homopolymers
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Dimensional Stability – Low moisture absorption (0.65%) and low CLTE ensure parts maintain their dimensions across varying environmental conditions
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Excellent Slip/Wear Properties – Very good sliding and wear properties for moving parts
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Heavy-Metal Free – Environmentally friendly formulation
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Easy Processing – Contains release agent for improved demolding
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Batch-to-Batch Consistency – Produced by Celanese under strict ISO standards, ensuring stable properties across all shipments
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Reliable Supply – We maintain inventory and a stable supply chain. For details on our supply capabilities, please see our company background .
Typical Properties (ISO Standards)
Typical properties of Hostaform C 9021 XLE measured per ISO standards are listed below:
| Property | Test Standard | Typical Value | Unit |
|---|---|---|---|
| Physical Properties | |||
| Density | ISO 1183 | 1410 | kg/m³ |
| Melt Volume Flow Rate (MVR) | ISO 1133 (190°C/2.16kg) | 8 | cm³/10min |
| Molding Shrinkage, Parallel | ISO 294-4, 2577 | ~2.0 | % |
| Molding Shrinkage, Normal | ISO 294-4, 2577 | ~1.8 | % |
| Water Absorption (23°C/sat) | Sim. to ISO 62 | 0.65 | % |
| Humidity Absorption (23°C/50% RH) | Sim. to ISO 62 | 0.2 | % |
| Mechanical Properties | |||
| Tensile Modulus | ISO 527-1/-2 | 2700 | MPa |
| Yield Stress | ISO 527-1/-2 | 65 | MPa |
| Yield Strain | ISO 527-1/-2 | 10 | % |
| Strain at Break | ISO 527-1/-2 | 30 | % |
| Flexural Modulus | ISO 178 | 2650 | MPa |
| Flexural Stress at 3.5% | ISO 178 | 74 | MPa |
| Charpy Notched Impact (+23°C) | ISO 179/1eA | 6.5 | kJ/m² |
| Charpy Notched Impact (-30°C) | ISO 179/1eA | 6.0 | kJ/m² |
| Poisson’s Ratio | – | 0.38 | – |
| Thermal Properties | |||
| Melting Temperature | ISO 11357-1/-3 | 166 | °C |
| Heat Deflection Temp (1.8 MPa) | ISO 75-1/-2 | 100 | °C |
| CLTE, Parallel | ISO 11359-1/-2 | 129 | E-6/K |
| CLTE, Normal | ISO 11359-1/-2 | 131 | E-6/K |
| Flammability | |||
| FMVSS Class | ISO 3795 (FMVSS 302) | B | – |
| Burning Rate (1mm thickness) | FMVSS 302 | <100 | mm/min |
| Burning Rate (2mm thickness) | ISO 3795 (FMVSS 302) | 34.2 | mm/min |
Important Notes on Typical Data:
Values listed are typical and based on Celanese official data sheets. They do not constitute a product specification.
Batch-to-batch variations may occur. Confirm properties with specific batch certificate for critical applications.
Final product performance depends on part design, molding conditions, and end-use environment.
Celanese original TDS remains the definitive reference. For detailed data, request the latest official TDS for Hostaform C 9021 XLE from our team.
Processing Guidelines (Injection Molding)
The following injection molding parameters are recommended for Hostaform C 9021 XLE:
| Parameter | Recommended Setting |
|---|---|
| Pre-drying | Recommended to achieve low emission values |
| Drying Temperature | 100 – 120°C |
| Drying Time (Dehumidified Dryer) | 3 – 4 hours |
| Max. Processing Moisture Content | ≤0.2% |
| Melt Temperature (Optimum) | 190°C |
| Melt Temperature (Min/Max) | 180 – 200°C |
| Mold Temperature (Optimum) | 100°C |
| Mold Temperature (Min/Max) | 80 – 120°C |
| Hold Pressure Range | 60 – 120 MPa |
| Back Pressure | 4 MPa |
| Screw Tangential Speed | ≤0.3 m/s |
| Screw Design | Standard injection molding machines with three-phase (15–25 D) plasticating screws |
Critical Processing Warnings for Hostaform C 9021 XLE:
Pre-Drying for Low Emission: To achieve ultra low emission values, pre-drying using a recirculating air dryer (100 to 120°C / max. 40 mm layer / 3 to 6 hours) is recommended.
Thermal Degradation: POM can decompose at high temperatures, releasing formaldehyde gas. Ensure adequate ventilation and avoid prolonged residence time in the barrel.
Material Purity: Strictly avoid contamination with other polymers, as this will compromise the ultra low-emission properties and overall performance.
Regrind/Recycled Material: Adding regrind is not recommended for this ultra low-emission specialty grade. Re-processing may introduce additional volatile compounds and compromise XLE ultra low emission properties. If necessary, use a very small percentage (<10%) only with prior validation testing.
Storage: Store in a cool, dry place and use sealed, original packaging when possible to maintain ultra low-emission characteristics.
Related Products
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Explore Our Full POM Product Portfolio – Browse all POM copolymer and homopolymer grades we supply.
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Ultra Low Emission POM (XLE Series) – Discover ultra low emission grades for the most demanding automotive interior applications.
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Low Emission POM (XAP Series) – Compare low emission alternatives.
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POM for Automotive Applications – View grades specifically suited for automotive interior components.
Technical Documents
We provide the following documentation to support your material selection and compliance needs:
| Document Type | Description & Source |
|---|---|
| Celanese Official TDS | Complete physical, thermal, mechanical, and electrical properties. Issued by Celanese (original). |
| Celanese Official SDS | GHS-compliant chemical safety documentation. Issued by Celanese (original). |
| Celanese Distributor Authorization Certificate | Proof of our authorized distributor status with Celanese. Available upon request. |
| VDA 275 Emission Test Report | Ultra low emission compliance documentation (<1 mg/kg). |
| FMVSS 302 Compliance | Automotive flammability compliance (Class B, <100 mm/min). |
| RoHS / REACH Compliance Declarations | Available upon request. |
| Processing & Molding Guide | Detailed guidelines for optimal processing of ultra low-emission POM. |
To request any of the above documents, please contact us via:
Email:
ruiqingchem@gmail.comOnline form: Our contact page
We will respond within 1 working day. Please specify the document type and material grade.
External Reference
For additional information, please refer to the official Celanese Hostaform product portal and the latest material datasheets. Key technical standards referenced in this document include:
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ISO 1043 / ISO 11469 – Resin identification and part marking
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ISO 1183 – Density measurement
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ISO 527-1/-2 – Tensile properties
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ISO 178 – Flexural properties
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ISO 179/1eA – Impact resistance
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ISO 75-1/-2 – Heat deflection temperature
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ISO 1133 – Melt volume-flow rate
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ISO 11357-1/-3 – Melting temperature
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ISO 11359-1/-2 – Coefficient of linear thermal expansion
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ISO 3795 (FMVSS 302) – Automotive flammability
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VDA 275 – Automotive interior emission testing
Our team can provide relevant excerpts from these standards for your reference.
FAQ
Q1: What is Hostaform C 9021 XLE and what is it used for?
A: It is an ultra low emission POM-C (Polyoxymethylene Copolymer) injection molding grade with Celanese’s XLE low emission technology. The “XLE” designation stands for Low Emission, delivering ultra low VOC emissions with VDA 275 <1 mg/kg. It is especially designed for automotive interior applications such as instrument panels, air vents, interior trim, seat belt components, and door handles.
Q2: What does “XLE” mean in the grade name?
A: XLE stands for Low Emission (LE) – X represents innovative development products. It is Celanese’s ultra low emission technology delivering VDA 275 emissions <1 mg/kg, among the lowest emission levels available for POM.
Q3: What are the emission properties of this material?
A: Hostaform C 9021 XLE is an ultra low emission grade. Emission according to VDA 275 is <1 mg/kg, making it suitable for the most demanding automotive interior applications with strict cabin air quality requirements.
Q4: What is the automotive flammability rating?
A: FMVSS 302 Class B with burning rate <100 mm/min (1 mm thickness). For 2mm thickness, burning rate is 34.2 mm/min.
Q5: What are the key mechanical properties?
A: Tensile modulus of 2700 MPa, yield stress of 65 MPa, strain at break of 30%, Charpy notched impact strength of 6.5 kJ/m² at 23°C and 6 kJ/m² at -30°C, and heat deflection temperature of 100°C at 1.8 MPa.
Q6: Is this material UV stabilized?
A: This natural grade is not specifically marketed as UV-stabilized. For UV-stabilized colored versions, please consult our technical team for other available grades.
Q7: Can I purchase this material and what is the lead time?
A: Yes, simply send your inquiry via our quick inquiry form or email us at ruiqingchem@gmail.com with your required quantity, application, and delivery address. Regular orders (1–5 tons) are typically delivered within 7–10 working days after order confirmation and payment receipt. Larger quantities or urgent orders can be discussed with our team.
Q8: What are the limitations of this material?
A: POM materials are not suitable for use with strong acids, strong oxidizing agents, or continuous high-temperature water (>80°C) . Please consult our technical team for chemical compatibility data for your specific use environment.
CTA (Call to Action)
Ready to order Hostaform C 9021 XLE?
To provide you with an accurate quotation and technical support, please share the following information:
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Estimated quantity (kg or tons)
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Destination port or delivery address
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Intended application and part design (e.g., wall thickness, dimensions, operating environment)
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Key performance requirements (e.g., ultra low emission / VOC requirements, VDA 275 compliance)
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Need for third-party testing or compliance documentation (e.g., VDA 275 test report for automotive applications)
Sample Policy:
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Samples are provided for laboratory testing and validation only and are not for mass production.
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International freight costs for samples are borne by the buyer.
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If bulk material shows typical batch-to-batch variation from the sample, Celanese official TDS shall be the definitive reference standard.
Take action now:
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Send Inquiry – Use our quick inquiry form
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Email Us –
ruiqingchem@gmail.com -
Live Chat – Click the chat button at the bottom right to speak with our team
After-Sales Support
We provide the following after-sales support to ensure a smooth procurement experience:
| Service | Details |
|---|---|
| Quality Inspection Period | Any quality claims must be raised within 7 working days of delivery, with supporting data and photographic evidence. |
| Return / Exchange Policy | Defective material confirmed to be our responsibility will be replaced or refunded. Conditions apply – please refer to our full Terms & Conditions. |
| Logistics Damage | Any shipping damage must be reported to the carrier immediately upon receipt. We will assist with claim documentation. |
| Technical Support | Remote technical support is available. On-site molding troubleshooting assistance may be arranged upon request. |
| Export Documentation | We provide standard export documents (commercial invoice, packing list, bill of lading, COA). Additional certifications (e.g., VDA 275 test reports) can be arranged upon request. |
Disclaimer
DISCLAIMER: All data provided is for reference based on manufacturer (Celanese) typical values. Our company is an authorized distributor/trader, not a manufacturer. Final product performance depends on part design, processing, and end-use. User is responsible for evaluating material suitability for their specific application. We shall not be liable for end-product performance or design failures. Please refer to the latest official Celanese TDS for definitive specifications.
