Kynar Flex® Ultraflex B

Alternative and trade names
PVDF
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Description

Kynar Flex® resins are fluorinated thermoplastic copolymers.

Kynar Ultraflex® resin is a semi-crystalline copolymer of vinylidene fluoride and hexafluoropropylene. This copolymer is a highly flexible material that can be melt processed using typical melt processing equipment or can be easily put in solution for solution coating process. It can be supplied in as pellets for melt processing or as crumb to facilitate dissolution. This is the most flexible Kynar Flex® resin grade available.

Additional characteristics:

  • High flexibility
  • Toughness
  • Weatherability
  • Solution properties

  • 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

    PropertyValueConditionTesting StandardComment

    Density

    1.77 g/cm³

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    dry

    ISO 1183

    1.8 - 1.83 g/cm³

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    ASTM D792

    Limiting oxygen index

    40 %

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    dry

    ASTM D2863, ISO 4589-1/-2

    Water absorption

    0.03 %

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    Sim. to ISO 62

    0.04 %

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    ASTM D570

    max.

    Mechanical

    PropertyValueTesting StandardConditionComment

    Elastic modulus

    0.0345 - 0.103 GPa

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    ASTM D638

    0.08 GPa

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    ISO 527-1/-2

    dry

    Elongation

    50 %

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    ISO 527-1/-2

    dry

    min. | nominal

    500 %

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    ASTM D638

    min.

    Elongation at yield

    20 %

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    ISO 527-1/-2

    dry

    25 - 35 %

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    ASTM D638

    Flexural modulus

    0.0689 - 0.138 GPa

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    ASTM D790

    Hardness, Shore D

    35 - 43 [-]

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    ASTM D2240

    Impact strength, Charpy notched

    No Break at 23°C

    ISO 179/1eA

    dry

    Tensile strength

    9.0 - 20.7 MPa

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    ASTM D638

    Yield strength

    4.8 - 8.3 MPa

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    ASTM D638

    Thermal

    PropertyValueTesting StandardConditionPressureComment

    Glass transition temperature

    -40 °C

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    ASTM D7028

    Heat deflection temperature

    46 °C

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    ISO 75-1/-2

    dry

    2 MPa

    Melting point

    92 - 112 °C

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    ASTM D3418

    101 °C

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    ISO 11357-1/-3

    dry

    10°C/min

    Rheological Properties

    PropertyValueTesting Standard

    Melt viscosity

    1200 - 2000 Pa·s

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    ASTM D3835

    Technological properties

    Property
    Application areas

    Chemical Process Industry,Tubing and Hoses