描述
Hostaform C 9021 XAP2 is a 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 XAP2 low emission technology, delivering very low VOC emissions and low odor, especially designed for automotive interior applications.
The “XAP2” designation indicates Celanese’s second-generation low emission technology, providing reduced emissions that meet or exceed the requirements of many automotive markets. Colored grades are UV-stabilized and light-stabilized for excellent weathering resistance.
It offers high rigidity (2700 MPa tensile modulus), outstanding toughness (220 kJ/m² impact strength), good heat resistance (104°C HDT), excellent chemical resistance, and low moisture absorption. With regular stock availability, we support both trial orders and bulk shipments for automotive, electrical, and consumer goods applications.
Key Features
Hostaform C 9021 XAP2 offers the following key performance benefits:
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XAP2 Low Emission Technology – Proprietary Celanese technology providing very low VOC emissions and low odor. Natural grades: VDA 275 <2 mg/kg; colored grades: VDA 275 <5 mg/kg.
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UV & Light Stabilized (colored grades) – Colored grades contain special additives to reduce the coefficient of friction, wear or noise, and are light-stabilized for excellent weathering resistance.
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High Rigidity & Strength – Tensile modulus of 2700 MPa and yield stress of 64 MPa.
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Outstanding Toughness – Charpy impact strength of 220 kJ/m² at 23°C and -30°C.
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Good Heat Resistance – Heat deflection temperature of 104°C at 1.8 MPa.
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Excellent Dimensional Stability – Low moisture absorption (0.65% at 23°C/sat), low CLTE (120 E-6/K), and low mold shrinkage.
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Good Chemical Resistance – Resistant to solvents, fuels, and strong alkalis, as well as good hydrolysis resistance.
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Excellent Electrical Properties – Volume resistivity of 1×10¹² Ω·m and CTI of 600V.
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Easy Processing – Medium flow (MVR 8 cm³/10min at 190°C/2.16kg) for injection molding.
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Heavy-Metal Free – Environmentally friendly formulation.
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Automotive Flammability Compliant – Burning rate according to FMVSS 302 <100 mm/min (1 mm thickness).
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Versatile Color Options – Available in a wide range of colors; colored grades are light-stabilized.
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. XAP2 low emission technology ensures compliance with cabin air quality standards (VDA 275). Burning rate <100 mm/min (FMVSS 302). Widely recommended for automotive interiors. |
| Household Appliances | Appliance components, gears, sliding parts, thin-walled products, fitness equipment components. |
| Electrical & Electronics | Switch housings, terminal blocks, connector bodies, cable management clips, low VOC components. |
| Consumer Goods | Sporting equipment, furniture mechanisms, personal care devices, toys, zippers. Meets low-emission requirements. |
| Precision Engineering | Precision gears, bearings, connectors, fasteners, snap-fit components, sensor housings. |
Explore our full range of engineering plastics solutions for more industry-specific case studies.
Material Advantages
The following material advantages make Hostaform C 9021 XAP2 the preferred choice for automotive interior and low-emission applications:
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XAP2 Low Emission Technology – Celanese’s proprietary XAP2 technology delivers significantly reduced VOC emissions and low odor, meeting stringent automotive interior air quality standards. Natural grades emit <2 mg/kg; colored grades <5 mg/kg (VDA 275).
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UV & Light Stabilization – Colored grades are light-stabilized and contain special additives to reduce friction, wear or noise, ensuring long-term color stability and mechanical property retention.
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High Mechanical Performance – Excellent balance of strength (64 MPa yield stress), stiffness (2700 MPa modulus), and toughness (220 kJ/m² impact strength).
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Outstanding Dimensional Stability – Low moisture absorption (0.65%) and low CLTE (120 E-6/K) ensure parts maintain their dimensions across varying environmental conditions.
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Excellent Chemical Resistance – Outstanding resistance to solvents, fuels, strong alkalis, hydrolysis, fatigue, creep, moisture, and stress cracking.
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Good Thermal Stability – Higher stability to thermal and oxidative degradation compared to acetal homopolymers.
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Good Electrical Properties – Volume resistivity of 1×10¹² Ω·m, surface resistivity of 1×10¹⁴ Ω, and CTI of 600V.
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Automotive Flammability Compliant – Burning rate <100 mm/min per FMVSS 302 (1 mm thickness).
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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 XAP2 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 | 1.9 | % |
| Water Absorption (23°C/sat) | Sim. to ISO 62 | 0.65 | % |
| Mechanical Properties | |||
| Tensile Modulus | ISO 527 | 2700 | MPa |
| Yield Stress | ISO 527 | 64 | MPa |
| Yield Strain | ISO 527 | 10 | % |
| Nominal Strain at Break | ISO 527 | 35 | % |
| Flexural Modulus | ISO 178 | 2600 | MPa |
| Charpy Impact Strength (+23°C) | ISO 179/1eU | 220 | kJ/m² |
| Charpy Impact Strength (-30°C) | ISO 179/1eU | 220 | kJ/m² |
| Charpy Notched Impact (+23°C) | ISO 179/1eA | 6.5 | kJ/m² |
| Charpy Notched Impact (-30°C) | ISO 179/1eA | 6.0 | kJ/m² |
| Tensile Creep Modulus, 1h | ISO 899-1 | 2400 | MPa |
| Tensile Creep Modulus, 1000h | ISO 899-1 | 1200 | MPa |
| Thermal Properties | |||
| Melting Temperature | ISO 11357-1/-3 | 166 | °C |
| Heat Deflection Temp (1.8 MPa) | ISO 75-1/-2 | 104 | °C |
| Heat Deflection Temp (0.45 MPa) | ISO 75-1/-2 | 157 | °C |
| CLTE, Parallel | ISO 11359-1/-2 | 120 | E-6/K |
| CLTE, Normal | ISO 11359-1/-2 | 120 | E-6/K |
| Vicat Softening Temp (VST/B/50) | ISO 306 | 150 | °C |
| Electrical Properties | |||
| Volume Resistivity | IEC 62631-3-1 | 1×10¹² | Ω·m |
| Surface Resistivity | IEC 62631-3-2 | 1×10¹⁴ | Ω |
| Relative Permittivity (100Hz / 1MHz) | IEC 62631-2-1 | 4 | – |
| Dissipation Factor (100Hz / 1MHz) | IEC 62631-2-1 | 20 / 50 | E-4 |
| Electric Strength | IEC 60243-1 | 35 | kV/mm |
| Comparative Tracking Index (CTI) | IEC 60112 | 600 | V |
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 XAP2 from our team.
Processing Guidelines (Injection Molding)
The following injection molding parameters are recommended for Hostaform C 9021 XAP2:
| Parameter | Recommended Setting |
|---|---|
| Pre-drying | Recommended to achieve low emission values |
| Drying Temperature | 100 – 120°C |
| Drying Time | 3 – 4 hours |
| Max. Moisture Content | ≤0.15% |
| Feed Temperature | 60 – 80°C |
| Melt Temperature | 180 – 200°C |
| Nozzle Temperature | 190 – 200°C |
| Hot Runner Temperature | 190 – 200°C |
| Mold Temperature | 80 – 120°C |
| Holding Pressure | 600 – 1200 bar |
| Back Pressure | As low as possible (just enough to remove air) |
| Screw Design | Standard injection molding machines with three-phase (15–25 D) plasticating screws |
Critical Processing Warnings for Hostaform C 9021 XAP2:
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 low-emission properties and overall performance.
Regrind/Recycled Material: Adding regrind is not recommended for this low-emission specialty grade. Re-processing may introduce additional volatile compounds and compromise the XAP2 low emission properties. If necessary, use a very small percentage (<10%) only with prior validation testing.
Pre-Drying for Low Emission: To achieve low emission values, pre-drying using a recirculating air dryer (100 to 120°C / max. 40 mm layer / 3 to 6 hours) is recommended.
Storage: Store in a cool, dry place and use sealed, original packaging when possible to maintain 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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Low Emission POM (XAP2 Series) – Discover low VOC, low odor grades for automotive interior applications.
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UV-Stabilized POM Grades – View grades specifically formulated for outdoor and UV-exposed applications.
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High-Performance POM-C Grades – Discover copolymer acetal options with enhanced impact and creep resistance.
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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 | Low emission / low VOC compliance documentation (<2 mg/kg natural, <5 mg/kg colored). |
| FMVSS 302 Compliance | Automotive flammability compliance (<100 mm/min). |
| UV Stability Test Report | Weathering and UV resistance performance data for colored grades. |
| RoHS / REACH Compliance Declarations | Available upon request. |
| Processing & Molding Guide | Detailed guidelines for optimal processing of 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 – Tensile properties
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ISO 178 – Flexural properties
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ISO 179/1eU / 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 294-4, 2577 – Mold shrinkage
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ISO 899-1 – Tensile creep modulus
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ISO 306 – Vicat softening temperature
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ISO 11359-1/-2 – Coefficient of linear thermal expansion
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ISO 62 – Water absorption
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IEC 62631 – Electrical properties
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IEC 60112 – Comparative Tracking Index (CTI)
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VDA 275 – Automotive interior emission testing
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FMVSS 302 – Automotive flammability
Our team can provide relevant excerpts from these standards for your reference.
FAQ
Q1: What is Hostaform C 9021 XAP2 and what is it used for?
A: It is a low emission POM-C (Polyoxymethylene Copolymer) injection molding grade incorporating Celanese’s proprietary XAP2 low emission technology. The “XAP2” designation indicates second-generation low emission technology with very low VOC emissions and low odor. It is widely used in automotive interior components (instrument panels, air vents, interior trim, seat belts), household appliances, electrical & electronics, and consumer goods. It is also available in a range of UV-stabilized, light-stabilized colors for exterior and interior applications.
Q2: What does “XAP2” mean in the grade name?
A: XAP2 is Celanese’s proprietary second-generation low emission technology for Hostaform POM. XAP2 grades offer significantly reduced VOC emissions and low odor, meeting stringent automotive interior air quality standards such as VDA 275.
Q3: What are the emission properties of this material?
A: Hostaform C 9021 XAP2 is a reduced emission grade. Emissions according to VDA 275: natural grades <2 mg/kg; colored grades <5 mg/kg. It is designed for automotive interior applications with strict cabin air quality requirements.
Q4: Is this material UV stabilized?
A: Yes, colored grades of Hostaform C 9021 XAP2 are UV-stabilized and light-stabilized, providing excellent weathering resistance for outdoor and automotive applications. Colored grades also contain special additives to reduce the coefficient of friction, wear or noise.
Q5: What are the key mechanical properties?
A: Tensile modulus of 2700 MPa, yield stress of 64 MPa, nominal strain at break of 35%, Charpy impact strength of 220 kJ/m², Charpy notched impact strength of 6.5 kJ/m², and heat deflection temperature of 104°C at 1.8 MPa.
Q6: What is the automotive flammability rating?
A: Burning rate according to FMVSS 302 is <100 mm/min for 1 mm thickness.
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 colors are available?
A: Hostaform C 9021 XAP2 is available in natural and a wide range of colored grades. Colored grades are light-stabilized and contain special additives for friction, wear or noise reduction.
Q9: 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 XAP2?
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., low emission / VOC requirements, color requirements, UV stability)
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Color requirements (natural or specific color code)
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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 –
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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.


