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STAR POM GP is a General Purpose Acetal available globally

Polymer Name: Polyacetal Copolymer (POM)

Processing Methods: Injection Molding

Technical Data Sheet

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Knowde Enhanced TDS

Identification & Functionality

Plastics & Elastomers Functions
Technologies
Processing Method
Injection Molding

Features & Benefits

Materials Features

Applications & Uses

Plastics & Elastomers End Uses
Plastics & Elastomers Processing Methods

Properties

Mechanical Properties
ValueUnitsTest Method / Conditions
Tensile Modulus (at 23°C)2760MPaISO 527-2/1A
Tensile Strain (at Break, 23°C)10%ISO 527-2/1A/50
Tensile Stress (at Yield, 23°C)65MPaISO 527-2/1A/50
Physical Properties
ValueUnitsTest Method / Conditions
Density1.41g/cm³ISO 1183
Melt Volume Flow Rate8cm³/10minISO 1183
Molding Shrinkage Across Flow (at 23°C)1.9%ISO 294-4
Water Absorption Saturation (at 23°C, 24 hr)0.75%ISO 62
Water Absorption Saturation (at 23°C)0.2%ISO 62
Molding Shrinkage Flow (at 23°C)2.0%ISO 294-4
Thermal Properties
ValueUnitsTest Method / Conditions
Coefficient of Linear Thermal Expansion Flow1.2E-4cm/cm/°CISO 11359-2
Coefficient of Linear Thermal Expansion Transverse1.2E-4cm/cm/°CISO 11359-2
Heat Deflection Temperature (at 0.45 MPa, Unannealed)158°CISO 75-2/B
Heat Deflection Temperature (at 1.8 MPa, Unannealed)101°CISO 75-2/A
Melting Temperature166°CISO 11357-3
Vicat Softening Temperature161°CISO 306/B50
Impact Properties
ValueUnitsTest Method / Conditions
Notched Izod Impact (at 23°C)6kJ/m²ISO 179/1eA
Unnotched Impact Strength (at 23°C)190kJ/m²ISO 179/1eU

Packaging & Availability

Regional Availability
  • Global