Celcon® GB25

Category: Acetal (POM) Copolymer , Acetal (POM) Copolymer
Manufacturer: Celanese Corporation
Trademark: Celcon®
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: pweegd_Celcon-GB25.pdf
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Celcon® GB25 acetal copolymer is a 25% glass bead filled grade for low shrinkage and warp resistance in large, flat and thin walled parts.

Chemical abbreviation according to ISO 1043-1: POM
General Information
Filler / Reinforcement
  • Glass beads, 25% filler by weight
Features
  • Low warpage
  • Low shrinkage
Uses
  • Thin wall parts
RoHS Compliance
  • Contact manufacturer
Multi-Point Data
  • Isothermal Stress vs. Strain (ISO 11403-1)
Resin ID (ISO 1043)
  • POM
PhysicalNominal ValueUnitTest Method
Specific Gravity
    -- 1.62g/cm³ASTM D792
    -- 1.58g/cm³ISO 1183
Melt Volume-Flow Rate (MVR) (190°C/2.16 kg)13.0cm³/10minISO 1133
Molding Shrinkage
    Flow 1.6%ASTM D955
    Transverse flow 1.4%ASTM D955
    Vertical flow direction 1.3%ISO 294-4
    Flow direction 1.5%ISO 294-4
Water Absorption ISO 62
    Saturated, 23°C 0.65%ISO 62
    Equilibrium, 23°C, 50% RH 0.20%ISO 62
MechanicalNominal ValueUnitTest Method
Tensile Modulus 3700MPaISO 527-2/1A/1
Tensile Strength
    Yield, -40°C 73.1MPaASTM D638
    Yield, 23°C 46.2MPaASTM D638
    Yield, 82°C 26.2MPaASTM D638
    Yield 49.0MPaISO 527-2/1A/50
Tensile Strain (Yield)4.0%ISO 527-2/1A/50
Flexural Modulus (23°C)3600MPaISO 178
ImpactNominal ValueUnitTest Method
Charpy Notched Impact Strength ISO 179/1eA
    -30°C 2.2kJ/m²ISO 179/1eA
    23°C 2.4kJ/m²ISO 179/1eA
Notched Izod Impact (23°C)2.6kJ/m²ISO 180/1A
ThermalNominal ValueUnitTest Method
Deflection Temperature Under Load
    1.8 MPa, not annealed 118°CASTM D648
    1.8 MPa, not annealed 105°CISO 75-2/A
Melting Temperature
    -- 1165°CISO 11357-3
    -- 166°CASTM D3418
Linear thermal expansion coefficient ISO 11359-2
    Flow 7.0E-5cm/cm/°CISO 11359-2
    Lateral 8.0E-5cm/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 190 - 200°C
Processing (Melt) Temp 180 - 200°C
Mold Temperature 90.0 - 120°C
Injection Pressure 90.0 - 140MPa
Injection Rate Slow
Holding Pressure 90.0 - 140MPa
Back Pressure 0.00 - 0.500MPa
Injection instructions
Manifold Temperature: 190 to 210°CZone 4 Temperature: 190 to 200°C
Note Message
1 .10°C/min
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