KYNAR® 740 PVDF natural

Polyvinylidene fluoride (PVDF)

​KYNAR® PVDF is a highly chemically resistant crystalline thermoplastic. It is used extensively in the chemical processing industry by users looking for plastic chemical resistance. The material is also chosen because of its unique properties which include outstanding chemical and solvent resistance, good corrosion resistance, good thermal stability, outstanding UV resistance, and low flammability.


Chemical designation
PVDF (Polyvinylidene fluoride)
1,78 g/cm3

Main Features

  • excellent chemical resistance
  • inherent flame resistance
  • high gamma radiation resistance
  • good UV and weather resistance
  • good mechanical properties
  • low moisture absorption
  • good machinability

Target industries

Technical details

  • Mechanical properties
    Mechanical propertiesValueUnitConditionTest Method
    Tensile strength at break8,000psi@ 73 °FASTM D 638
    Modulus of elasticity
    (tensile test)
    300,000psi@ 73 °FASTM D 638
    Elongation at break35%@ 73 °FASTM D 638
    Flexural strength13,000psi@ 73 °FASTM D 790
    Modulus of elasticity
    (flexural test)
    400,000psi@ 73 °FASTM D 790
    Impact strength (Izod)1.9ftlbsin@ 73 °FASTM D 256
    Rockwell hardness79-M ScaleASTM D 785
    Compression strength10,500psi@ 73 °F, 10% strainASTM D 695
    Tensile strength at yield8,000psi@ 73 °FASTM D 638
    Compression strength1,200psi@ 73 °F, 1% strainASTM D 695
    Compression modulus160,000psi@ 73 °FASTM D 695
  • Thermal properties
    Thermal propertiesValueUnitConditionTest Method
    Thermal conductivity1.18-1.32BTU-in/hr-ft^2 - degASTM C 177
    Melting temperature342F-
    Thermal expansion (CLTE)7.3*10-5ininFASTM D 696
    Deflection temperature221-239F@264 psiASTM D 648
    Deflection temperature257-284F@ 66 psiASTM D 648
    Specific heat0.28-0.36butlbf*** new ***
    Service temperature300FLong Term-
  • Electrical properties
    Electrical propertiesValueUnitConditionTest Method
    Dielectric strength1700V/milASTM D 149
    Dielectric constant4.5-@ 100 MHz, 73 °FASTM D 150
    Dissipation factor0.01--0.21-@ 100 Hz, 73 °FASTM D 150
    Volume resistivity2*1014O*cm@ 73 °F, 65% RHASTM D 257
  • Other properties
    Other propertiesValueUnitConditionTest Method
    Moisture absorption0.02%@ 24 hrs, 73 °FASTM D 570
    Flammability (UL94)V0--

Stock program