描述
Hostaform C 9021 TF XAP2 is a PTFE-modified, low emission POM-C (Polyoxymethylene Copolymer) injection molding material, 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 modified with PTFE (polytetrafluoroethylene) to provide an exceptionally low coefficient of friction, making it ideal for demanding sliding applications. It also incorporates XAP2 low emission technology for reduced VOC emissions and low odor.
The “TF” designation indicates tribological modification with PTFE, while “XAP2” indicates low emission technology. Together, they deliver very low friction, good wear resistance, self-lubricating properties, and compliance with automotive interior air quality standards.
It is a very hard and rigid, heavy-metal free POM copolymer grade that exhibits outstanding chemical resistance (solvents, fuels & strong alkalis), hydrolysis-, fatigue-, creep-, moisture- and stress cracking resistance. It also maintains toughness down to -40°C, offers good heat distortion temperature (up to 100°C), very good slip/wear properties, excellent resilience, low moisture absorption, and higher stability to thermal and oxidative degradation compared to acetal homopolymers. With regular stock availability, we support both trial orders and bulk shipments for automotive, precision engineering, and industrial applications.
Key Features
Hostaform C 9021 TF XAP2 offers the following key performance benefits:
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PTFE Tribological Modification – Provides a very low coefficient of friction for sliding combinations. Designed for wear applications against plastics, metal, glass or ceramic mating surfaces where silicone lubricants cannot be tolerated.
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XAP2 Low Emission Technology – Reduced emission grade with low VOC and low odor, meeting stringent automotive interior air quality standards. Emission according to VDA 275 <5 mg/kg (colored grades).
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Very Hard & Rigid – A very hard and rigid grade providing excellent structural strength and surface hardness.
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Heavy-Metal Free – Environmentally friendly formulation.
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Outstanding Chemical Resistance – Excellent resistance to solvents, fuels, and strong alkalis.
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Good Hydrolysis Resistance – Maintains properties in moist environments.
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High Resistance to Fatigue, Creep, Moisture & Stress Cracking – Ensures long-term performance under demanding conditions.
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High Toughness – Maintains toughness even at low temperatures (down to -40°C).
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Good Heat Resistance – Heat deflection temperature up to 98°C at 1.8 MPa.
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Excellent Slip/Wear Properties – Very good slip and wear properties for moving parts and sliding applications.
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Excellent Resilience – High resilience for demanding applications.
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Low Moisture Absorption – Ensures dimensional stability across varying environmental conditions.
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Higher Thermal & Oxidative Stability – Higher stability compared to acetal homopolymers.
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Easy Colorization – Can be easily colored to meet specific design requirements.
Typical Applications
| Industry | Typical Components & Considerations |
|---|---|
| Automotive | Interior components, gears, bearings, fuel system components, door locks, seat belt systems. Low friction and low emission are critical for cabin air quality. |
| Precision Engineering | Sliding combinations with very low coefficient of friction, low-friction gears, sliding bearings, wear pads, guide rails. |
| 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, toys, zippers, stationery, precision metal replacement parts, sporting equipment, furniture mechanisms. |
Explore our full range of engineering plastics solutions for more industry-specific case studies.
Material Advantages
The following material advantages make Hostaform C 9021 TF XAP2 the preferred choice for low-friction, low-emission sliding applications:
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PTFE Tribological Technology – The PTFE modification provides an exceptionally low coefficient of friction, making it ideal for applications where silicone lubricants cannot be tolerated.
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XAP2 Low Emission Technology – Reduced emission grade with emissions according to VDA 275 <5 mg/kg (colored grades); meets stringent automotive interior air quality standards.
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Versatile Mating Surface Compatibility – Designed for wear applications against plastics, metal, glass or ceramic mating surfaces.
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Outstanding Chemical & Environmental Resistance – Excellent resistance to solvents, fuels, strong alkalis, hydrolysis, fatigue, creep, moisture, and stress cracking.
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High Toughness – Maintains impact resistance and toughness 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 ensures parts maintain their dimensions across varying environmental conditions.
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Excellent Resilience – High resilience for demanding applications.
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Heavy-Metal Free – Environmentally friendly formulation.
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Easy Colorization – Can be easily colored to meet specific design requirements.
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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 TF XAP2 measured per ISO standards are listed below:
| Property | Test Standard | Typical Value | Unit |
|---|---|---|---|
| Physical Properties | |||
| Density | ISO 1183 | 1.51 | g/cm³ |
| Melt Volume Flow Rate (MVR) | ISO 1133 (190°C/2.16kg) | 6 | cm³/10min |
| Molding Shrinkage, Parallel | ISO 294-4, 2577 | 2.0 | % |
| Molding Shrinkage, Normal | ISO 294-4, 2577 | 1.7 | % |
| Water Absorption (23°C/sat) | Sim. to ISO 62 | 0.65 | % |
| Mechanical Properties | |||
| Tensile Modulus | ISO 527 | 2350 | MPa |
| Yield Stress | ISO 527 | 50 | MPa |
| Yield Strain | ISO 527 | 10 | % |
| Nominal Strain at Break | ISO 527 | 16 | % |
| Charpy Notched Impact (+23°C) | ISO 179/1eA | 4 | kJ/m² |
| Charpy Notched Impact (-30°C) | ISO 179/1eA | 4 | kJ/m² |
| Charpy Impact Strength (+23°C) | ISO 179/1eU | 60 | kJ/m² |
| Thermal Properties | |||
| Melting Temperature | ISO 11357-1/-3 | 166 | °C |
| Heat Deflection Temp (1.8 MPa) | ISO 75-1/-2 | 98 | °C |
| CLTE, Parallel | ISO 11359-1/-2 | 110 | E-6/K |
| 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 | 3.7 | – |
| Electric Strength | IEC 60243-1 | 33 | kV/mm |
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 TF XAP2 from our team.
Processing Guidelines (Injection Molding)
The following injection molding parameters are recommended for Hostaform C 9021 TF XAP2:
| Parameter | Recommended Setting |
|---|---|
| Pre-drying | Generally not necessary; drying is recommended if moisture is present |
| Drying Temperature | 100 – 120°C |
| Drying Time | 3 – 4 hours |
| Max. Moisture Content | ≤0.15% |
| Manifold / Hot Runner Temperature | 190 – 210°C |
| Mold Temperature | 80 – 120°C |
| Screw Design | Standard injection molding machines with three-phase (15–25 D) plasticating screws |
Critical Processing Warnings for Hostaform C 9021 TF 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 PTFE-modified tribological properties and XAP2 low emission characteristics.
Regrind/Recycled Material: Adding regrind is not recommended for this specialty grade. PTFE additives can degrade during re-processing, compromising mechanical and tribological properties, and may introduce additional volatile compounds that compromise XAP2 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 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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PTFE-Modified Tribological POM (TF Series) – Discover ultra-low friction grades for demanding sliding applications.
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Low Emission POM (XAP2 Series) – Discover low VOC, low odor grades for automotive interior 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, electrical, and tribological 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 for automotive interior applications. |
| RoHS / REACH Compliance Declarations | Available upon request. |
| UL Yellow Card | UL94 HB rating documentation. |
| Processing & Molding Guide | Detailed guidelines for optimal processing of PTFE-modified, 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 1043-1 / 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 179/1eA / 1eU – 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 62 – Water absorption
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ISO 11359-1/-2 – Coefficient of linear thermal expansion
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IEC 62631 – Electrical properties
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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 TF XAP2 and what is it used for?
A: It is a PTFE-modified, low emission POM-C (Polyoxymethylene Copolymer) injection molding material that provides a very low coefficient of friction for sliding combinations. The “TF” designation indicates PTFE modification, while “XAP2” indicates low emission technology. It is specifically designed for wear applications against plastics, metal, glass or ceramic mating surfaces where silicone lubricants cannot be tolerated. It is widely used in automotive (interior components, gears, bearings, fuel system components), electrical & electronics (connectors, switches), industrial machinery, medical, and consumer goods applications.
Q2: What does “TF” and “XAP2” mean in the grade name?
A: TF stands for Tribological modification with PTFE (polytetrafluoroethylene) , providing very low coefficient of friction and good wear resistance. XAP2 is Celanese’s low emission technology that reduces VOC emissions and low odor, meeting stringent automotive interior air quality standards. The resin identification code is POM-K, M-GNS, 2-2.
Q3: What are the emission properties of this material?
A: Hostaform C 9021 TF XAP2 is a reduced emission grade. Emissions according to VDA 275 are <5 mg/kg (colored grades), making it suitable for automotive interior applications with strict cabin air quality requirements.
Q4: What are the key mechanical properties?
A: Tensile modulus of 2350 MPa, yield stress of 50 MPa, nominal strain at break of 16%, Charpy notched impact strength of 4 kJ/m², and heat deflection temperature of 98°C at 1.8 MPa.
Q5: What is the UL flammability rating?
A: The burning rate according to FMVSS 302 is <100 mm/min (1 mm thickness), making it suitable for automotive interior applications.
Q6: 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.
Q7: 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 TF 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, sliding/friction requirements)
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Key performance requirements (e.g., target coefficient of friction, mating surface material, low emission / VOC requirements)
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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 –
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.


