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Kocetal UR304 is impact strength modified grade suitable for fasteners and switches.

Polymer Name: Polyacetal Copolymer (POM)

Processing Methods: Injection Molding

Additives Included: Impact Modifier

Flexural Modulus: 1900.0 - 1900.0 MPa

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    Identification & Functionality

    Additives Included
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    Features & Benefits

    Applications & Uses

    Plastics & Elastomers End Uses
    Plastics & Elastomers Processing Methods

    Properties

    Flame Rating
    Physical Form
    Flame Rating
    UL 94 HB
    Mechanical Properties
    ValueUnitsTest Method / Conditions
    Tensile Strength45MPaASTM D638
    Elongation at Break140%ASTM D 638
    Strain at Breakmin. 50%ISO 527
    Flexural Strength60MPaASTM D 790
    Flexural Modulus1800MPaASTM D 790
    Flexural modulus, 23°1900MPaISO 178
    Charpy notched impact strength (+23°)13kJ/m2ISO 179/1eA
    Izod Impact notched (1/8 in)130J/mASTM D 256
    Rockwell Hardness76Scale MISO 2039-2
    Physical Properties
    ValueUnitsTest Method / Conditions
    Melt Flow Index - MFI (190°C/2.16 kg)12g/10 minASTM D 1238
    Mold Shrinkage (MD)0.017mm/mmASTM D 955
    Molding shrinkage - parallel1.7%ISO 294-4, 2577
    Density1360kg/m3ISO 1183
    Thermal Properties
    ValueUnitsTest Method / Conditions
    Coefficient of Thermal Expansion (MD)130E-6/KASTM D 696
    Temperature of deflection under load (1.80 Mpa)72°CISO 75-1/-2
    Deflection Temperature Under Load (264 psi)82°CASTM D 648
    Deflection Temperature Under Load (66 psi)145°CASTM D 648
    Melting temperature (10°C/min)166°CISO 11357-1/-3
    Thickness tested0.8mm
    Melting Temperature166°CASTM D 3418
    Electrical Properties
    ValueUnitsTest Method / Conditions
    Surface Resistivitymin. 1E15ohmIEC 60093
    Dissipation Factor (1 MHz)0.006-ASTM D 150
    Dielectric Strength (Short Time)19kV/mmASTM D 149
    Volume Resistivity100000000000000.0ohm.mASTM D 257
    Flammability
    ValueUnitsTest Method / Conditions
    Flame ratingHB-UL 94
    Other Properties
    ValueUnitsTest Method / Conditions
    Water Absorption (24 hr)0.25%ASTM D 570

    Regulatory & Compliance

    Certifications & Compliance

    Packaging & Availability

    Regional Availability
    • Asia Pacific
    • Europe
    • Latin America
    • North America