Celanese Hostaform C 2521 POM

Material attribute: Low flow

Package: 25 KG/Bag

Process: Extrusion molding
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 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
ManufacturerCelanese Corporation
Other CertificatesMSDS
Part Marking Code>POM material<
ColorNatural color
Material ShapePOM Pellets
ProcessInjection 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 propertiesStandardValueUnit
Density  ISO 1183 1410kg/m³
Melt volume rate, MVR at 190℃/ 2.16 kg ISO 1133  2.5
cm³/10min
Mold shrinkage, parallel ISO 294-42.1%
Mold shrinkage, normoal ISO 294-41.8%
Humidity absorption, 2 mmISO 62 0.2%
Water absorption 2 mmISO 62 0.65%
Mechanical behaviorStandardValueUnit
Tensile stress, yield, 50 mm/minISO 52762 MPa
Tensile strain, yield, 50 mm/minISO 5279%
Nominal strain at breakISO 52732%
Tensile modulusISO 5272600 MPa
Flexural stress at 3.5 %ISO 17866 MPa
Flexural modulusISO 1782500 MPa
Tensile creep modulus, 1 hISO 8992300 MPa
Tensile creep modulus, 1000 hISO 8991100 MPa
Ball indentation hardness, H358 /30ISO 2039-1144 MPa
ImpactStandardValueUnit
Charpy impact strength 23℃ISO 179/1eU250kJ/㎡
Charpy impact strength -30℃ISO 179/1eU250kJ/㎡
Charpy notched impact strength 23℃ISO 179/1eA8.5kJ/㎡
Charpy notched impact strength -30℃ISO 179/1eA8.5kJ/㎡
ThermalStandardValueUnit
Temperature of deflection under load, 1.8 MPaISO 75101 °C
Melting Temperature, 10 ℃ /minISO 75165 °C
Thermal conducitivity of meltISO 22007-20.155
W/(m K)
Coefficient of linear thermal expansion (CLTE), parallelISO 11359-1/-2110
E-6/K
Specific heat capacity of meltISO 22007-42210
J/(kg K)
Electrical StandardValueUnit
Volume resistivityIEC 626311E12Ohm.m
Surface resistivityIEC 600931E14Ohm
Electic strengthIEC 60243-135 kV/mm
Comparative tracking indexIEC 60112600
Dissipation factor, 100 Hz IEC 6263115E-4
Dissipation factor, 1 MHz IEC 6263150E-4
Relative permittivity, 100 HzIEC 626314
Relative permittivity, 1 MHzIEC 626314
Flame retardantStandardValueUnit
UL recognized, 94HB Flame Class RatingUL 941.5mm
UL recognized, 94HB Flame Class Rating 2nd valueUL 943mm
Injection molding guidanceStandardValueUnit
Drying temperature100℃
Drying time3-4hrs
Maximum moisture content0.02%
Melt temperature190-210℃
Max screw tangential speed≤0.3m/s
Mold temperature optimum100℃
Min. mold temperature80℃
Max. mold temperature120℃
Hold press range60-120MPa
Hold press time2h²-3s
Back pressure4MPa
Ejection temperature130℃
 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

  1. Celanese ,"Hostaform C 2521 copolymer POM technical data sheet", Celanese , 27/10/2026