描述
Hostaform C 9021 GV3/20 is a glass bead reinforced 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.
Unlike conventional glass fiber reinforced grades, this material is reinforced with approximately 20% glass spheres (glass beads) , delivering ultra-low warpage and isotropic (uniform) shrinkage properties.
The “GV3/20” designation indicates glass bead reinforcement at 20% loading, which provides higher rigidity and hardness compared to the 10% glass bead grade (GV3/10), along with excellent dimensional stability and a very smooth surface finish.
It retains the outstanding chemical resistance (solvents, fuels & strong alkalis), fatigue resistance, creep resistance, low moisture absorption, and toughness down to -40°C of standard POM-C. With regular stock availability, we support both trial orders and bulk shipments for precision engineering, automotive, and electronic applications.
Hostaform C 9021 GV3/20 Key Features
Hostaform C 9021 GV3/20 offers the following key performance benefits:
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20% Glass Bead Reinforcement – Provides enhanced rigidity, hardness, and dimensional stability compared to 10% glass bead grades.
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Ultra-Low Warpage – Glass bead reinforcement minimizes warpage and distortion during and after processing, ideal for precision components.
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Isotropic Shrinkage – Uniform shrinkage in all directions ensures predictable and consistent part dimensions.
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Excellent Surface Finish – Glass beads produce a very smooth surface finish compared to glass fiber grades.
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Outstanding Chemical Resistance – Resistant to solvents, fuels, and strong alkalis.
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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 110°C at 1.8 MPa.
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Very Good Slip/Wear Properties – Suitable for moving parts and sliding applications.
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Low Moisture Absorption – Ensures dimensional stability across varying environmental conditions.
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Higher Thermal & Oxidative Stability – Compared to acetal homopolymers.
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Easy Colorization – Can be easily colored to meet specific design requirements.
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Regulatory Compliance – UL94 HB rated (natural ≥0.81mm; black ≥1.5mm); FMVSS 302 <100 mm/min (automotive flammability); heavy-metal free; complies with RoHS and REACH. Full SDS available upon request.
Hostaform C 9021 GV3/20 Typical Applications
| Industry | Typical Components & Considerations |
|---|---|
| Precision Engineering | Precision gears and bearings, connectors and fasteners, snap-fit components, sensor housings. The low warpage ensures tight tolerances are maintained. |
| Automotive | Interior components (dashboard supports, trim clips), under-the-hood parts (fuel pump housings, valve bodies), structural brackets and mounting systems. FMVSS 302 compliant. |
| Electrical & Electronics | Terminal blocks, switch housings, connector bodies, cable management clips and guides. Good electrical insulation properties with UL94 HB rating. |
| Domestic Appliances | Appliance housings (vacuum cleaner components, blender bases), functional components (handles, knobs, hinges). |
| Industrial Components | Piping and valve fittings, conveyor system rollers and guides. |
| Consumer Goods | Sporting equipment, furniture mechanisms, personal care devices. |
Explore our full range of engineering plastics solutions for more industry-specific case studies.
Material Advantages
The following material advantages make Hostaform C 9021 GV3/20 the preferred choice for precision, low-warpage applications requiring higher rigidity:
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Higher Rigidity vs. GV3/10 – With 20% glass bead content (versus 10%), this grade offers significantly higher rigidity and hardness while maintaining the low warpage characteristics of the GV3 series.
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Glass Beads vs. Glass Fibers – Unlike glass fiber reinforced grades (GV1 series) which can cause anisotropic shrinkage and warpage, the spherical glass beads in GV3/20 provide isotropic (uniform) shrinkage and ultra-low warpage.
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Superior Dimensional Stability – The combination of low warpage, isotropic shrinkage, and low moisture absorption ensures parts maintain their dimensions across varying environmental conditions.
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Excellent Surface Quality – Glass bead reinforcement produces a much smoother surface finish compared to glass fiber grades, reducing the need for secondary finishing operations.
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Outstanding Chemical & Environmental Resistance – Excellent resistance to solvents, fuels, strong alkalis, hydrolysis, 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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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 GV3/20 measured per ISO standards are listed below:
| Property | Test Standard | Typical Value | Unit |
|---|---|---|---|
| Density | ISO 1183 | ~1.53 | g/cm³ |
| Glass Bead Content | – | ~20 | % |
| Melt Volume Flow Rate (MVR) | ISO 1133 (190°C/2.16kg) | 8.5 | cm³/10min |
| Tensile Modulus | ISO 527 | 3400 | MPa |
| Tensile Stress (Yield) | ISO 527 | 46 | MPa |
| Yield Strain | ISO 527 | 6.5 | % |
| Nominal Strain at Break | ISO 527 | 15 | % |
| Flexural Modulus | ISO 178 | 3200 | MPa |
| Charpy Notched Impact (+23°C) | ISO 179/1eA | 3.5 | kJ/m² |
| Charpy Notched Impact (-30°C) | ISO 179/1eA | 3.5 | kJ/m² |
| Charpy Impact Strength (+23°C) | ISO 179/1eU | 50 | kJ/m² |
| Heat Deflection Temp (1.8 MPa) | ISO 75-1/-2 | 110 | °C |
| Melting Temperature | ISO 11357 | 166 | °C |
| Mold Shrinkage, Parallel | ISO 294-4 | 1.9 | % |
| Mold Shrinkage, Normal | ISO 294-4 | 1.6 | % |
| CLTE, Parallel | ISO 11359-1/-2 | 100 | E-6/K |
| Water Absorption (23°C/sat) | ISO 62 | 0.80 | % |
| Flammability | UL94 | HB | – |
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 GV3/20 from our team.
Processing Guidelines (Injection Molding)
The following injection molding parameters are recommended for Hostaform C 9021 GV3/20:
| Parameter | Recommended Setting |
|---|---|
| Pre-drying | Generally not necessary due to low moisture absorption |
| Drying (if required) | 100–120°C, 3–4 hours, max. 40mm layer |
| Max. Water Content | ≤0.15% |
| Feed Temperature | 60 – 80°C |
| Melt Temperature | 190 – 230°C |
| Manifold / Hot Runner Temp | 190 – 210°C |
| Mold Temperature | 80 – 120°C |
| Holding Pressure | 600 – 1200 bar |
Critical Processing Warnings for Hostaform C 9021 GV3/20:
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 glass bead reinforced properties and mechanical performance.
Regrind/Recycled Material: Adding regrind is not recommended for this specialty grade. Glass beads can degrade during re-processing, compromising mechanical properties and dimensional stability. If necessary, use a very small percentage (<10%) only with prior validation testing.
Mold Design: The glass bead reinforcement provides isotropic shrinkage, but proper gating and venting are still recommended for optimal part quality.
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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Glass Bead Reinforced POM (GV3 Series) – Discover low warpage grades with isotropic shrinkage for precision components.
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Glass Fiber Reinforced POM (GV1 Series) – Compare high-strength glass fiber reinforced alternatives.
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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 Precision Engineering Applications – View grades specifically suited for tight tolerance 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, and mechanical properties including 20% glass bead content. 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. |
| UL Yellow Card | UL94 HB rating documentation. |
| FMVSS 302 Compliance | Automotive flammability compliance (<100 mm/min). |
| Processing & Molding Guide | Detailed guidelines for optimal processing of glass bead reinforced 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 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 – Impact resistance
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ISO 75 – Heat deflection temperature
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ISO 1133 – Melt volume-flow rate
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ISO 11357 – Melting temperature
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ISO 294-4 – Mold shrinkage
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ISO 62 – Water absorption
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ISO 11359-1/-2 – Coefficient of thermal expansion
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UL94 – Flammability
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FMVSS 302 – Automotive flammability
Our team can provide relevant excerpts from these standards for your reference.
Hostaform C 9021 GV3/20 FAQ
Q1: What is Hostaform C 9021 GV3/20 and what is it used for?
A: It is a 20% glass bead reinforced POM-C (Polyoxymethylene Copolymer) injection molding material. Unlike glass fiber reinforced grades, it offers ultra-low warpage and isotropic (uniform) shrinkage, making it ideal for precision components requiring tight dimensional tolerances and excellent surface finish. The 20% glass bead content provides higher rigidity and hardness compared to the 10% grade (GV3/10). It is widely used in precision engineering, automotive (interior and under-the-hood components), electrical & electronics (connectors, switch housings), domestic appliances, and industrial components.
Q2: What does “GV3/20” mean in the grade name?
A: GV3 indicates Glass Bead Reinforced Version 3 (using glass spheres rather than glass fibers), and /20 indicates approximately 20% glass bead content by weight. The resin identification code is POM-GB20 (GB = Glass Beads).
Q3: What is the difference between GV3 (glass bead) and GV1 (glass fiber) reinforced grades?
A: GV3 series uses spherical glass beads which provide isotropic shrinkage and ultra-low warpage, resulting in excellent dimensional stability and smooth surface finish. GV1 series uses glass fibers which provide higher stiffness and strength but can cause anisotropic shrinkage and warpage. Choose GV3 for precision components with tight tolerances; choose GV1 for maximum structural strength.
Q4: What is the difference between GV3/10 and GV3/20?
A: GV3/20 contains 20% glass beads (double the content of GV3/10), providing higher rigidity, hardness, and dimensional stability. GV3/10 offers slightly better impact resistance and is suitable for applications where lower rigidity is acceptable.
Q5: What is the UL flammability rating?
A: UL94 HB rated. For natural color, thickness ≥0.81mm; for black color, thickness ≥1.5mm. FMVSS 302 burning rate is <100 mm/min for thickness >1mm.
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.
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Ready to order Hostaform C 9021 GV3/20?
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, tolerance requirements)
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Key performance requirements (e.g., dimensional stability, surface finish, rigidity)
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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 –
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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 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.


