描述
Hostaform C 9021 S1 is a silicone oil 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 modified with approximately 1% silicone oil, providing enhanced tribological performance with a focus on noise prevention in demanding applications.
The “S1” designation indicates silicone modification for friction reduction and noise prevention, specifically addressing the stick-slip phenomenon that can cause audible noise in moving parts.
It offers high rigidity, hardness and toughness, good chemical resistance, and excellent dimensional stability. With regular stock availability, we support both trial orders and bulk shipments for precision engineering, electrical & electronics, and domestic appliance applications.
Key Features
Hostaform C 9021 S1 offers the following key performance benefits:
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1% Silicone Oil Modification – Provides low friction, good wear resistance, and effective noise prevention.
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Noise Prevention – Specifically designed to prevent audible noise caused by the stick-slip phenomenon in moving parts.
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High Rigidity & Hardness – Offers high rigidity, hardness and toughness for demanding mechanical applications.
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Good Toughness – High toughness ensures durability under dynamic loading conditions.
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Good Chemical Resistance – Resistant to a wide range of chemicals, including solvents, fuels, and strong alkalis.
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Good 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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Good Slip/Wear Properties – Silicone modification provides self-lubricating properties for moving parts.
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Regulatory Compliance – Complies with EU Regulation (EU) 10/2011 and FDA 21 CFR 177.2470; FMVSS 302 <100 mm/min (thickness >1mm). Full SDS available upon request.
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Heavy-Metal Free – Environmentally friendly formulation.
Typical Applications
| Industry | Typical Components & Considerations |
|---|---|
| Precision Engineering | Precision gears and bearings, connectors and fasteners, snap-fit components, sliding mechanisms. Silicone modification ensures quiet operation. |
| Electrical & Electronics | Switch housings, terminal blocks, connector bodies, sliding switches, cable management clips and guides. Noise prevention is critical for consumer satisfaction. |
| Domestic Appliances | Appliance gears, sliding parts, thin-walled products, fitness equipment components. Low friction and noise reduction extend product life. |
| Automotive | Interior mechanisms, seat adjustment components, window regulator slides, noise-sensitive moving parts. FMVSS 302 compliant. |
| Consumer Goods | Sporting equipment, furniture mechanisms, personal care devices requiring low friction and quiet operation. |
Explore our full range of engineering plastics solutions for more industry-specific case studies.
Material Advantages
The following material advantages make Hostaform C 9021 S1 the preferred choice for noise-sensitive and tribological applications:
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Silicone Modification for Noise Prevention – The 1% silicone oil modification provides effective prevention of stick-slip noise, ensuring quiet, smooth operation in precision mechanisms.
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High Rigidity & Toughness – Offers an excellent balance of high rigidity, hardness and toughness for demanding mechanical applications.
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Good Chemical Resistance – Outstanding resistance to solvents, fuels, and strong alkalis.
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Good Slip / Wear Properties – Silicone modification provides self-lubricating properties, reducing friction and wear in moving parts.
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Dimensional Stability – Low moisture absorption ensures parts maintain their dimensions across varying environmental conditions.
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Good Thermal Stability – Higher stability to thermal and oxidative degradation compared to acetal homopolymers.
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FDA & EU Food Contact Compliance – Meets FDA 21 CFR 177.2470 and EU Regulation (EU) 10/2011 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 S1 measured per ISO standards are listed below:
| Property | Test Standard | Typical Value | Unit |
|---|---|---|---|
| Density | ISO 1183 | 1.41 | g/cm³ |
| Melt Volume Flow Rate (MVR) | ISO 1133 (190°C/2.16kg) | 8.1 | cm³/10min |
| Water Absorption (23°C/sat) | ISO 62 | 0.65 | % |
| Humidity Absorption (23°C/50% RH) | ISO 62 | 0.2 | % |
| Tensile Modulus | ISO 527 | 2700 | MPa |
| Tensile Stress at Yield | ISO 527 | 60 | MPa |
| Tensile Strain at Yield | ISO 527 | 11.5 | % |
| Nominal Strain at Break | ISO 527 | 35 | % |
| Charpy Notched Impact (+23°C) | ISO 179/1eA | 6.5 | kJ/m² |
| Charpy Notched Impact (-30°C) | ISO 179/1eA | 6 | kJ/m² |
| Charpy Impact Strength (+23°C) | ISO 179/1eU | 180 | kJ/m² |
| 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 | 110 | E-6/K |
| CLTE, Normal | ISO 11359-1/-2 | 110 | E-6/K |
| Mold Shrinkage, Parallel | ISO 294-4 | 2.0 | % |
| Mold Shrinkage, Normal | ISO 294-4 | 1.8 | % |
| Flammability | FMVSS 302 | <100 (thickness >1mm) | 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 S1 from our team.
Processing Guidelines (Injection Molding)
The following injection molding parameters are recommended for Hostaform C 9021 S1:
| Parameter | Recommended Setting |
|---|---|
| Pre-drying | Generally not necessary |
| Drying (if required) | 100 – 120°C, 3 – 6 hours |
| Max. Moisture Content | ≤0.2% |
| Melt Temperature (Optimum) | 200°C |
| Melt Temperature (Min/Max) | 190 – 210°C |
| Mold Temperature | 80 – 120°C |
| Holding Pressure | 600 – 1200 bar |
| Ejection Temperature | ~140°C |
Critical Processing Warnings for Hostaform C 9021 S1:
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 silicone-modified properties and overall performance.
Regrind/Recycled Material: Adding regrind is not recommended for this specialty grade. Silicone 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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Silicone-Modified Tribological POM – Discover other silicone-containing grades for friction and noise prevention 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 Noise-Sensitive Applications – View grades specifically suited for quiet, low-friction moving parts.
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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. |
| FDA Compliance Declaration | FDA 21 CFR 177.2470 compliance statement. |
| EU 10/2011 Compliance Declaration | European Food Regulation compliance statement. |
| FMVSS 302 Compliance | Automotive flammability compliance (<100 mm/min). |
| Processing & Molding Guide | Detailed guidelines for optimal processing of silicone-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 – 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 11359-1/-2 – Coefficient of thermal expansion
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ISO 62 – Water absorption
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FMVSS 302 – Automotive flammability
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FDA 21 CFR 177.2470 – U.S. Food and Drug Administration food contact regulation
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EU 10/2011 – European food contact regulation
Our team can provide relevant excerpts from these standards for your reference.
FAQ
Q1: What is Hostaform C 9021 S1 and what is it used for?
A: It is a 1% silicone oil modified POM-C (Polyoxymethylene Copolymer) injection molding material. The “S1” designation indicates silicone modification for noise prevention and friction reduction. It is widely used in precision engineering, electrical & electronics, domestic appliances, and automotive applications where quiet, low-friction moving parts are required. Typical parts include precision gears, bearings, sliding mechanisms, switch housings, and appliance components.
Q2: What does “S1” mean in the grade name?
A: S1 indicates 1% silicone oil modification. This provides low friction, good wear resistance, and effective prevention of audible noise caused by the stick-slip phenomenon.
Q3: What are the regulatory compliances of this material?
A: Hostaform C 9021 S1 complies with EU Regulation (EU) 10/2011 and FDA 21 CFR 177.2470 for food contact applications. FMVSS 302 burning rate is <100 mm/min for thickness >1mm. Full compliance declarations are available upon request.
Q4: What are the key mechanical properties?
A: Tensile modulus of 2700 MPa, tensile stress at yield of 60 MPa, nominal strain at break of 35%, Charpy notched impact strength of 6.5 kJ/m², and melting temperature of 166°C.
Q5: 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.
Q6: 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 S1?
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, noise/friction requirements)
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Key performance requirements (e.g., noise prevention, friction coefficient, wear resistance)
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Color requirements (natural or specific color code)
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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 (e.g., FDA declarations) 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.
