Celanese Hostaform C 2521 POM
Material attribute: Low flow
Package: 25 KG/Bag
Process: Extrusion molding
Package: 25 KG/Bag
Process: Extrusion molding
Celanese Hostaform C 2521 POM Description
Hostaform C2521 is a low-flow acetal resin manufactured by Celanese Corporation; it is also known as"POM-C material."It has a melt index of 2.5 and high viscosity, and can be used to produce sheets, pipes, and thick-walled products.
Celanese Hostaform C 2521 POM Advantage
- High viscosity POM, Hostaform C2521 POM resin has a melt volume rate (MVR) of 2.5 cm³/10 min under test conditions of 190°C and 2.16 kg. It has high viscosity, making it resistant to deformation and warpage during the production of thick-walled products, and is particularly suitable for the production of extruded sheets, pipes, and other products.
- Automotive application POM, As a copolymer formaldehyde material suitable for automotive applications, Hostaform C2521 has been certified to ·BMW GS93016 · Bosch N28 BN 22-O004 · Continental TST N 055 54.07 · Ford WSK-M4D635-A1 · General Motors · Mercedes-Benz DBL 5403, 5405, 5410, 5420 · Nissan POM-IVx-1 · Stellantis MS.50210/POM-C.2400F.6C.LF. These certification documents allow the parts to be used directly in vehicles of the corresponding brands without the need for secondary certification.
Why choose Baiyou as Celanese Hostaform C 2521 POM supplier?
- Leading high viscosity polyacetal resin supplier (POM material) , 20+ years of experience in plastic product manufacturing and chemical raw material import and export
- Fastest Arrival, with warehouses in multiple ports
- 1,000+ types of resins are available, and we have cooperated with large petrochemical groups for 30+ years
- Free Samples for production testing
- Wholesale price, even a piece of goods is based on the wholesale price
Key Attributes
| Celanese Hostaform C 2521 POM | |||
| Product information | |||
| Manufacturer | Celanese Corporation | ||
| Other Certificates | MSDS | ||
| Part Marking Code | >POM material< | ||
| Color | Natural color | ||
| Material Shape | POM Pellets | ||
| Process | Injection molding | ||
| Features | ·High flow ·Easy to process | ||
| Autmotive | ·BMW GS93016 ·Bosch N28 BN 22-O004 ·Coninental TST N 055 54.07 ·Ford WSK-M4D635-A1 ·General Motors ·Mercedes-Benz DBL 5403 5405 5410 5420 ·Nissan POM-IVx-1 ·Stellantis MS.50210/POM-C.2400F.6C.LF | ||
| Physical properties | Standard | Value | Unit |
| Density | ISO 1183 | 1410 | kg/m³ |
| Melt volume rate, MVR at 190℃/ 2.16 kg | ISO 1133 | 2.5 | cm³/10min |
| Mold shrinkage, parallel | ISO 294-4 | 2.1 | % |
| Mold shrinkage, normoal | ISO 294-4 | 1.8 | % |
| Humidity absorption, 2 mm | ISO 62 | 0.2 | % |
| Water absorption 2 mm | ISO 62 | 0.65 | % |
| Mechanical behavior | Standard | Value | Unit |
| Tensile stress, yield, 50 mm/min | ISO 527 | 62 | MPa |
| Tensile strain, yield, 50 mm/min | ISO 527 | 9 | % |
| Nominal strain at break | ISO 527 | 32 | % |
| Tensile modulus | ISO 527 | 2600 | MPa |
| Flexural stress at 3.5 % | ISO 178 | 66 | MPa |
| Flexural modulus | ISO 178 | 2500 | MPa |
| Tensile creep modulus, 1 h | ISO 899 | 2300 | MPa |
| Tensile creep modulus, 1000 h | ISO 899 | 1100 | MPa |
| Ball indentation hardness, H358 /30 | ISO 2039-1 | 144 | MPa |
| Impact | Standard | Value | Unit |
| Charpy impact strength 23℃ | ISO 179/1eU | 250 | kJ/㎡ |
| Charpy impact strength -30℃ | ISO 179/1eU | 250 | kJ/㎡ |
| Charpy notched impact strength 23℃ | ISO 179/1eA | 8.5 | kJ/㎡ |
| Charpy notched impact strength -30℃ | ISO 179/1eA | 8.5 | kJ/㎡ |
| Thermal | Standard | Value | Unit |
| Temperature of deflection under load, 1.8 MPa | ISO 75 | 101 | °C |
| Melting Temperature, 10 ℃ /min | ISO 75 | 165 | °C |
| Thermal conducitivity of melt | ISO 22007-2 | 0.155 | W/(m K) |
| Coefficient of linear thermal expansion (CLTE), parallel | ISO 11359-1/-2 | 110 | E-6/K |
| Specific heat capacity of melt | ISO 22007-4 | 2210 | J/(kg K) |
| Electrical | Standard | Value | Unit |
| Volume resistivity | IEC 62631 | 1E12 | Ohm.m |
| Surface resistivity | IEC 60093 | 1E14 | Ohm |
| Electic strength | IEC 60243-1 | 35 | kV/mm |
| Comparative tracking index | IEC 60112 | 600 | |
| Dissipation factor, 100 Hz | IEC 62631 | 15 | E-4 |
| Dissipation factor, 1 MHz | IEC 62631 | 50 | E-4 |
| Relative permittivity, 100 Hz | IEC 62631 | 4 | |
| Relative permittivity, 1 MHz | IEC 62631 | 4 | |
| Flame retardant | Standard | Value | Unit |
| UL recognized, 94HB Flame Class Rating | UL 94 | 1.5 | mm |
| UL recognized, 94HB Flame Class Rating 2nd value | UL 94 | 3 | mm |
| Injection molding guidance | Standard | Value | Unit |
| Drying temperature | 100 | ℃ | |
| Drying time | 3-4 | hrs | |
| Maximum moisture content | 0.02 | % | |
| Melt temperature | 190-210 | ℃ | |
| Max screw tangential speed | ≤0.3 | m/s | |
| Mold temperature optimum | 100 | ℃ | |
| Min. mold temperature | 80 | ℃ | |
| Max. mold temperature | 120 | ℃ | |
| Hold press range | 60-120 | MPa | |
| Hold press time | 2h²-3 | s | |
| Back pressure | 4 | MPa | |
| Ejection temperature | 130 | ℃ | |
Partners
We have established long-term relationships with 80+ well-known companies around the world |

Warehouse And Shipping
20+ years' experience consultant with a supply chain of 1000+ plastic raw materials in China. |
Quantity (tonnes) | 1-100 | 100-300 | >300 |
Lead time (days) | 7-10 | 10-15 | To be negotiated |

References and Notes
- Celanese ,"Hostaform C 2521 copolymer POM technical data sheet", Celanese , 27/10/2026
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