Kynar Flex® 2950-05

Alternative and trade names
PVDF
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Description

Kynar Flex® resins are fluorinated thermoplastic copolymers.

Kynar Flex® 2950-05 resin is a pelletized, semi-crystalline VF2 based copolymer. It has been designed for wire and cable applications requiring high flexibility and improved resistance to impact.The low molecular weight allows extrusion conditions that reduce jacket shrink back over fiber optic constructions.

Additional characteristics:

  • Excellent thermal stability
  • Excellent abrasion resistance
  • Excellent chemical resistance
  • Impervious to UV degradation
  • High Limiting Oxygen Index
  • Extremely low smoke emission characteristics

    Meets UL910 requirements

  • This material data has been provided by Arkema Technical Polymers.

    All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
    Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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    Properties

    General

    PropertyValueTesting StandardConditionComment

    Coefficient of friction

    0.54 [-]

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    ASTM D1894

    vs Steel, Kinetic

    0.55 [-]

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    ASTM D1894

    vs Steel, Static

    Density

    1.77 - 1.8 g/cm³

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    ASTM D792

    1.77 g/cm³

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    ISO 1183

    dry

    Limiting oxygen index

    95 %

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    ASTM D2863, ISO 4589-1/-2

    dry

    Water absorption

    0.03 %

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    Sim. to ISO 62

    0.03 - 0.05 %

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    ASTM D570

    Mechanical

    PropertyValueTesting StandardConditionComment

    Compressive strength

    24.1 - 31 MPa

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    ASTM D695

    Elastic modulus

    0.276 - 0.448 GPa

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    ASTM D638

    0.387 GPa

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    ISO 527-1/-2

    dry

    Elongation

    50 %

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    ISO 527-1/-2

    dry

    min. | nominal

    200 - 400 %

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    ASTM D638

    Elongation at yield

    15 - 25 %

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    ASTM D638

    18 %

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    ISO 527-1/-2

    dry

    Flexural modulus

    0.276 - 0.414 GPa

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    ASTM D790

    Flexural strength

    13.8 - 24.1 MPa

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    ASTM D790

    at 5% strain

    Hardness, Shore D

    57 - 62 [-]

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    ASTM D2240

    Impact strength, Charpy notched

    No Break at 23°C

    ISO 179/1eA

    dry

    Impact strength, Charpy notched, ASTM

    No Break at 23°C

    ASTM D256

    Impact strength, Charpy unnotched, ASTM

    No Break at 23°C

    ASTM D256

    Tensile strength

    20 - 27.6 MPa

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    ASTM D638

    Yield strength

    12 MPa

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    ISO 527-1/-2

    dry

    13.8 - 21.4 MPa

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    ASTM D638

    Thermal

    PropertyValueTesting StandardConditionPressureComment

    Coefficient of thermal expansion

    0.000162 - 0.000216 1/K

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    ASTM D696

    Glass transition temperature

    -42.2 - -40 °C

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    ASTM D7028

    -40 °C

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    ISO 11357-1/-2

    dry

    10°C/min

    Heat deflection temperature

    35 - 52 °C

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    ASTM D648

    2 MPa

    248 °F/hr

    43 °C

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    ISO 75-1/-2

    dry

    2 MPa

    49 - 66 °C

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    ASTM D648

    0.45 MPa

    248 °F/hr

    57 °C

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    ISO 75-1/-2

    dry

    0.45 MPa

    Melting point

    130 - 138 °C

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    ASTM D3418

    134 °C

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    ISO 11357-1/-3

    dry

    10°C/min

    Specific heat capacity

    745 - 958 J/(kg·K)

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    DSC

    Thermal conductivity

    0.144 - 0.18 W/(m·K)

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    ASTM D433

    Thermal decomposition in air

    375 °C

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    TGA

    1% wt. loss

    Thermal decomposition in nitrogen

    410 °C

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    TGA

    1% wt. loss

    Flammability

    At thickness 1.5 mm IEC 60695-11-10: V-0, At thickness 0.8 mm IEC 60695-11-10: V-0 and yellow card available

    Electrical

    PropertyValueFrequencyTesting StandardCondition

    Dielectric constant

    3.8 - 12.1 [-]

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    1KHz

    ASTM D150

    7.05 [-]

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    100Hz

    IEC 60250

    dry

    Dielectric strength

    1.4 kV/mm

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    IEC 60243-1

    dry

    43.3 - 51.2 kV/mm

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    ASTM D149

    Dissipation factor

    1.2e-05 [-]

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    100Hz

    IEC 60250

    dry

    0.02 - 0.24 [-]

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    100KHz

    ASTM D150

    Volume resistivity

    2e+14 Ω·cm

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    ASTM D257

    65% RH

    2e+14 Ω·cm

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    IEC 60093

    dry

    Rheological Properties

    PropertyValueTesting StandardConditionComment

    Melt mass-flow rate

    8 - 25 g/10min

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    ASTM D1238

    230°C/3.8kg

    Melt viscosity

    6 - 1200 Pa·s

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    ASTM D3835

    Melt volume-flow rate

    11.5 cm³/10min

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    ISO 1133

    dry

    232°C/3.8kg

    Technological properties

    Property
    Application areas

    Automotive Cables,Performance Wire,Plenum Cable,Plenum Conduit,PVDF Cable Jacketing,Wire and Cables