Hostaform® C 9021 K

Category: Acetal (POM) Copolymer , Acetal (POM) Copolymer
Manufacturer: Celanese Corporation
Trademark: Hostaform®
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: 6Ew84H_Hostaform-C-9021-K.pdf
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Chemical abbreviation according to ISO 1043-1: POM
Molding compound ISO 9988- POM-K, M-GNR, 03-002, K5

POM copolymer

Injection molding type, with special chalk modified; good wear
properties; good chemical resistance to solvents, fuel and strong
alkalis as well as good hydrolysis resistance; high resistance to
thermal and oxidative degradation.

UL-registration in natural and a thickness more than 1.57 mm as UL 94
HB, temperature index UL 746 B electrical 105°C, mechanical 90°C
(tensile impact) and 80°C (tensile).

Burning rate ISO 3795 and FMVSS 302 < 100 mm/min for a thickness
more than 1 mm.

Ranges of applications: for unlubricated or once-only-lubricant
sliding Parts.

FMVSS = Federal Motor Vehicle Safety Standard (USA)
UL = Underwriters Laboratories (USA)
General Information
Filler / Reinforcement
  • chalk filler
Features
  • Solvent resistance
  • Good chemical resistance
  • alkali resistance
  • Good wear resistance
  • Fuel resistance
  • Hydrolysis resistance
RoHS Compliance
  • Contact manufacturer
Processing Method
  • Injection molding
Multi-Point Data
  • Isochronous Stress vs. Strain (ISO 11403-1)
  • Isothermal Stress vs. Strain (ISO 11403-1)
  • Shear Stress vs. Shear Rate (ISO 11403-1)
Resin ID (ISO 1043)
  • POM
PhysicalNominal ValueUnitTest Method
Density 1.44g/cm³ISO 1183
Melt Volume-Flow Rate (MVR) (190°C/2.16 kg)7.50cm³/10minISO 1133
Molding Shrinkage ISO 294-4
    Vertical flow direction 1.8%ISO 294-4
    Flow direction 2.0%ISO 294-4
Water Absorption (Saturation, 23°C)0.65%ISO 62
MechanicalNominal ValueUnitTest Method
Tensile Modulus 3000MPaISO 527-2/1A/1
Tensile Stress (Yield)60.0MPaISO 527-2/1A/50
Tensile Strain (Yield)8.0%ISO 527-2/1A/50
Nominal Tensile Strain at Break 22%ISO 527-2/1A/50
Tensile Creep Modulus ISO 899-1
    1 hr 2500MPaISO 899-1
    1000 hr 1400MPaISO 899-1
Flexural Modulus (23°C)2900MPaISO 178
ImpactNominal ValueUnitTest Method
Charpy Notched Impact Strength ISO 179/1eA
    -30°C 5.0kJ/m²ISO 179/1eA
    23°C 5.0kJ/m²ISO 179/1eA
Charpy Unnotched Impact Strength ISO 179/1eU
    -30°C 100kJ/m²ISO 179/1eU
    23°C 100kJ/m²ISO 179/1eU
ThermalNominal ValueUnitTest Method
Heat Deflection Temperature (1.8 MPa, Unannealed)100°CISO 75-2/A
Melting Temperature 1166°CISO 11357-3
CLTE - Flow 1.1E-4cm/cm/°CISO 11359-2
ElectricalNominal ValueUnitTest Method
Surface Resistivity 1.0E+14ohmsIEC 60093
Volume Resistivity 1.0E+14ohms·cmIEC 60093
Dielectric Strength 35kV/mmIEC 60243-1
Relative Permittivity IEC 60250
    100 Hz 4.20IEC 60250
    1 MHz 4.20IEC 60250
Dissipation Factor IEC 60250
    100 Hz 2.5E-3IEC 60250
    1 MHz 6.0E-3IEC 60250
Comparative Tracking Index 600VIEC 60112
FlammabilityNominal ValueUnitTest Method
Flame Rating UL 94
    1.57 mm HBUL 94
    3.18 mm HBUL 94
Fill AnalysisNominal ValueUnitTest Method
Density of Melt 1.230g/cm³Internal method
Ejection Temperature 164°CInternal method
Specific Heat Capacity of Melt 2060J/kg/°CInternal method
Thermal Conductivity of Melt 0.20W/m/KInternal method
InjectionNominal ValueUnit
Drying Temperature 100 - 120°C
Drying Time 3.0 - 4.0hr
Suggested Max Moisture 0.15%
Hopper Temperature 20.0 - 30.0°C
Rear Temperature 170 - 180°C
Middle Temperature 180 - 190°C
Front Temperature 190 - 200°C
Nozzle Temperature 190 - 210°C
Processing (Melt) Temp 190 - 210°C
Mold Temperature 80.0 - 120°C
Injection Pressure 60.0 - 120MPa
Injection Rate Slow
Holding Pressure 60.0 - 120MPa
Back Pressure 0.00 - 2.00MPa
Injection instructions
Manifold Temperature: 190 to 210°CZone 4 Temperature: 190 to 210°CFeed Temperature: 60 to 80°C
Note Message
1 .10°C/min
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