Hostaform® XT 20

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: 43nz4o_Hostaform-XT-20.pdf
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Preliminary Data Sheet

Hostaform® acetal copolymer grade XT 20 is highly impact modified grade for very demanding applications. Hostaform® XT 20 provides exceptional impact strength and flexibility over standard impact modified acetal grades.

Chemical abbreviation according to ISO 1043-1: POM-HI
General Information
Additive
  • Impact modifier
Features
  • Impact modification
  • Impact resistance, good
  • Good flexibility
RoHS Compliance
  • Contact manufacturer
Resin ID (ISO 1043)
  • POM-HI
PhysicalNominal ValueUnitTest Method
Density 1.33g/cm³ISO 1183
Melt Volume-Flow Rate (MVR) (190°C/2.16 kg)1.00cm³/10minISO 1133
Molding Shrinkage ISO 294-4
    Vertical flow direction 1.2%ISO 294-4
    Flow direction 1.4%ISO 294-4
Water Absorption (Saturation, 23°C)0.80%ISO 62
MechanicalNominal ValueUnitTest Method
Tensile Modulus 1200MPaISO 527-2/1A/1
Tensile Stress (Yield)35.0MPaISO 527-2/1A/50
Tensile Strain (Yield)25%ISO 527-2/1A/50
Flexural Modulus (23°C)1100MPaISO 178
ImpactNominal ValueUnitTest Method
Charpy Notched Impact Strength ISO 179/1eA
    -30°C 15kJ/m²ISO 179/1eA
    23°C 100kJ/m²ISO 179/1eA
Charpy Unnotched Impact Strength ISO 179/1eU
    -30°C No BreakISO 179/1eU
    23°C No BreakISO 179/1eU
ThermalNominal ValueUnitTest Method
Heat Deflection Temperature
    0.45 MPa, not annealed 124°CISO 75-2/B
    1.8 MPa, not annealed 64.0°CISO 75-2/A
Melting Temperature 1166°CISO 11357-3
Linear thermal expansion coefficient ISO 11359-2
    Flow 1.2E-4cm/cm/°CISO 11359-2
    Lateral 1.2E-4cm/cm/°CISO 11359-2
InjectionNominal ValueUnit
Drying Temperature 80.0 - 100°C
Drying Time 3.0hr
Rear Temperature 170 - 180°C
Middle Temperature 180 - 190°C
Front Temperature 180 - 190°C
Nozzle Temperature 180 - 200°C
Processing (Melt) Temp 180 - 200°C
Mold Temperature 60.0 - 80.0°C
Injection Pressure 60.0 - 120MPa
Injection Rate Slow
Holding Pressure 60.0 - 120MPa
Back Pressure 0.00 - 0.500MPa
Injection instructions
Zone 4 Temperature: 180 to 200°C
Note Message
1 .10°C/min
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