CELANESE HOSTAFORM C 9021 GV1/30 GT Modified POM Resin

Physical Properties

• Density: Measured per ISO 1183, the material’s density is 1.54 g/cc (0.0556 lb/in³), specifying mass per unit volume for material characterization.
• Linear Mold Shrinkage, Flow: By ISO 294-4, flow-direction shrinkage is 0.0030 cm/cm (0.0030 in/in), critical for dimensional accuracy in injection molding.
• Linear Mold Shrinkage, Transverse: Per ISO 294-4, transverse shrinkage is 0.0080 cm/cm (0.0080 in/in), highlighting directional variation in component contraction.
• Melt Flow: Under ISO 1133 at 190°C/2.16 kg, the melt flow rate is 2.5 g/10 min [cm³/10min], indicating lower processability for injection molding.

Polymer Properties:

1. Base Material: Polyoxymethylene (POM)
2. Reinforcement: 26% Glass Fiber
3. Modification Features:
   
   • Significantly enhanced rigidity and mechanical strength due to glass fiber reinforcement.
   • Exhibits excellent resistance to thermal and oxidative degradation.
   • Reduced thermal expansion and shrinkage for better dimensional stability.
   • Good chemical resistance to common substances.
   • Suitable for injection molding, enabling production of complex – shaped parts.

Applications:

• Automotive Engineering
  HOSTAFORM C 9021 GV1/30 GT is widely used in automotive applications due to its ability to withstand mechanical stress, wear, and chemical exposure. Key applications include:
  • Fuel System Components: Its resistance to fuels and solvents supports its use in fuel pumps, connectors, and valve components.
  • Structural Components: High rigidity and dimensional stability make it suitable for brackets, housings, and other structural parts in automotive assemblies.
  • Interior Mechanisms: Used in seat adjustment mechanisms and window regulators, benefiting from its toughness and low friction properties.
• Precision Engineering
  In precision engineering, the material’s high dimensional accuracy and mechanical strength are critical for producing reliable components. Applications include:
  • Precision Gears and Cams: The low wear and high stiffness properties ensure long-term performance in high-precision mechanical systems.
  • Connectors and Fasteners: Used in applications requiring tight tolerances and resistance to creep and fatigue, such as snap-fit connectors.
  • Tooling Components: Suitable for components in jigs and fixtures, where hardness and dimensional stability are essential.
• Electrical and Electronic Industry
  The material’s excellent electrical insulation properties, combined with its mechanical strength, make it suitable for various electrical and electronic applications:
  • Insulating Housings: Used in electrical enclosures and connector housings, benefiting from its high rigidity and resistance to thermal degradation.
  • Switchgear Components: Applied in components requiring high mechanical strength and resistance to wear, such as sliders and levers in switchgear systems.
  • Cable Management Systems: Its low moisture absorption and dimensional stability make it ideal for cable clips and organizers.
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• Consumer Goods
  HOSTAFORM C 9021 GV1/30 GT complies with RoHS and meets consumer goods safety standards (e.g., BgVV recommendation XXXIII), making it suitable for:
  • Sporting Equipment: Used in components like ski bindings and bicycle parts, where high strength and low wear are essential.
  • Furniture Mechanisms: Applied in hinges and adjustment mechanisms, leveraging its durability and low friction.
  • Personal Care Devices: Utilized in electric shaver components and other devices requiring precision and wear resistance.

Processing Considerations

• Injection Molding: The material’s medium viscosity (melt flow rate of 2.5 g/10 min at 190°C/2.16 kg) supports complex part geometries with high precision. 
• Sheet and Film Extrusion: Suitable for producing durable sheets and films for industrial and consumer applications.
• Drying: While general drying is not required due to low moisture absorption, drying at 100–120°C for 3–6 hours is recommended if the material is exposed to water or high humidity.