描述
Hostaform C 9021 TF5 is a PTFE-modified 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 a medium flowing, low-level polytetrafluoroethylene (PTFE) filled product, designed for use in wear applications against plastics, metal, glass or ceramic mating surfaces where silicone lubricants cannot be tolerated.
The “TF5” designation indicates tribological modification with PTFE, delivering low friction, good wear resistance, and self-lubricating properties.
It is a very hard and rigid, heavy-metal free POM grade that exhibits outstanding chemical resistance (solvents, fuels & strong alkalis), hydrolysis resistance, fatigue resistance, creep resistance, moisture resistance, and stress cracking resistance. It also maintains toughness down to -40°C, offers good heat distortion temperature (up to 102°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 TF5 offers the following key performance benefits:
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PTFE Tribological Modification – Low-level PTFE-filled product providing a 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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Very Hard & Rigid – A very hard and rigid, heavy-metal free POM grade providing excellent structural strength and surface hardness.
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Outstanding Chemical Resistance – Excellent resistance to solvents, fuels, and strong alkalis.
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Good Hydrolysis, Fatigue, Creep, Moisture & Stress Cracking Resistance – 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 of 102°C at 1.8 MPa.
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Very Good Slip/Wear Properties – Excellent sliding and wear properties for moving parts.
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Excellent Resilience – High resilience for demanding applications.
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Low Moisture Absorption – Water absorption of 0.65% (23°C/sat) 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.
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Contains Release Agent – Facilitates easy demolding during injection molding.
Typical Applications
| Industry | Typical Components & Considerations |
|---|---|
| Automotive | Gears, bearings, sliding mechanisms, fuel system components, door locks, seat belt systems, interior moving parts. |
| Precision Engineering | Sliding combinations requiring low coefficient of friction, low-friction gears, sliding bearings, wear pads, guide rails. |
| Electrical & Electronics | Connectors, switches, coil formers, precision housings, audio equipment mechanisms. |
| 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 | Household appliances, fitness equipment, thin-walled products, toys, zippers, sporting equipment, furniture mechanisms. |
| Metal Replacement | Precision metal replacement parts where low friction and wear resistance are critical. |
Explore our full range of engineering plastics solutions for more industry-specific case studies.
Material Advantages
The following material advantages make Hostaform C 9021 TF5 the preferred choice for low-friction sliding applications:
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PTFE Tribological Technology – The low-level PTFE modification provides an exceptionally low coefficient of friction and excellent wear resistance, making it ideal for applications where silicone lubricants cannot be tolerated.
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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 (0.65%) 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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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 TF5 measured per ISO standards are listed below:
| Property | Test Standard | Typical Value | Unit |
|---|---|---|---|
| Density | ISO 1183 | 1.44 | g/cm³ |
| Melt Volume Flow Rate (MVR) | ISO 1133 (190°C/2.16kg) | 8 | cm³/10min |
| Water Absorption (23°C/sat) | Sim. to ISO 62 | 0.65 | % |
| Humidity Absorption (23°C/50% RH) | Sim. to ISO 62 | 0.2 | % |
| Tensile Modulus | ISO 527 | 2600 | MPa |
| Tensile Stress at Yield | ISO 527 | 58 | MPa |
| Tensile Strain at Yield | ISO 527 | 9 | % |
| Charpy Impact Strength (+23°C) | ISO 179/1eU | 125 | kJ/m² |
| Charpy Impact Strength (-30°C) | ISO 179/1eU | 110 | kJ/m² |
| Charpy Notched Impact (+23°C) | ISO 179/1eA | 5.2 | kJ/m² |
| Melting Temperature | ISO 11357-1/-3 | 166 | °C |
| Heat Deflection Temp (1.8 MPa) | ISO 75-1/-2 | 102 | °C |
| Mold Shrinkage, Parallel | ISO 294-4, 2577 | 2.1 | % |
| Mold Shrinkage, Normal | ISO 294-4, 2577 | 1.8 | % |
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 TF5 from our team.
Processing Guidelines (Injection Molding)
The following injection molding parameters are recommended for Hostaform C 9021 TF5:
| Parameter | Recommended Setting |
|---|---|
| Pre-drying | Generally not necessary due to low moisture absorption |
| Drying (if required) | 100 – 120°C, 3 – 6 hours, max. 40mm layer |
| Max. Moisture Content | ≤0.2% |
| Optimum Melt Temperature | 195°C |
| Melt Temperature (Min/Max) | 190 – 200°C |
| Manifold / Hot Runner Temperature | 190 – 210°C |
| Optimum Mold Temperature | 100°C |
| Mold Temperature (Min/Max) | 80 – 120°C |
| Hold Pressure Range | 60 – 120 MPa |
| Back Pressure | ~2 MPa |
| Screw Tangential Speed | ≤0.3 m/s |
| Ejection Temperature | ~134°C |
| Screw Design | Standard injection molding machines with three-phase (15–25 D) plasticating screws |
| Conditioning | Not necessary |
Critical Processing Warnings for Hostaform C 9021 TF5:
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.
Regrind/Recycled Material: Adding regrind is not recommended for this PTFE-modified specialty grade. PTFE additives can degrade during re-processing, compromising mechanical and tribological 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.
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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MoS₂-Modified Tribological POM (M Series) – Compare MoS₂-modified alternatives for high-pressure sliding.
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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 Sliding & Wear Applications – View grades specifically suited for moving parts and tribological applications.
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 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. |
| RoHS / REACH Compliance Declarations | Available upon request. |
| Processing & Molding Guide | Detailed guidelines for optimal processing of PTFE-modified 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 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 62 – Water absorption
Our team can provide relevant excerpts from these standards for your reference.
FAQ
Q1: What is Hostaform C 9021 TF5 and what is it used for?
A: It is a low-level PTFE-filled POM-C (Polyoxymethylene Copolymer) injection molding material. The “TF5” designation indicates PTFE tribological modification with low-level PTFE content. It provides a low coefficient of friction and excellent wear resistance. 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 (gears, bearings, sliding mechanisms), precision engineering (low-friction gears, sliding bearings, guide rails), electrical & electronics (connectors, switches), industrial machinery, medical, and consumer goods / household appliances applications.
Q2: What does “TF5” mean in the grade name?
A: TF stands for Tribological modification with PTFE (polytetrafluoroethylene) , providing low friction and wear resistance. 5 indicates a low-level PTFE filling level. The resin identification code is POM+PTFE.
Q3: What is the difference between Hostaform C 9021 TF5 and Hostaform C 9021 TF?
A: Both are PTFE-modified tribological grades. TF5 is characterized as a standard flow (standard flow) grade with low-level PTFE filling. TF is also PTFE-modified but may have different flow characteristics or PTFE content. Both provide low friction and wear resistance for sliding applications against plastics, metal, glass or ceramic mating surfaces where silicone lubricants cannot be tolerated.
Q4: What are the key mechanical properties?
A: Tensile modulus of 2600 MPa, tensile stress at yield of 58 MPa, Charpy notched impact strength of 5.2 kJ/m², and heat deflection temperature of 102°C at 1.8 MPa.
Q5: Is this material suitable for food contact applications?
A: Hostaform C 9021 TF5 is a PTFE-modified tribological grade. For specific food contact compliance (FDA, EU 10/2011), please consult our technical team and request the relevant compliance documentation for your specific application requirements.
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 TF5?
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)
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Color requirements (natural or custom color)
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Need for third-party testing or compliance documentation
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 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.


