Kynar® 370

Alternative and trade names
PVDF
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Description

Kynar® resins are fluorinated thermoplastic homopolymers.

Kynar® 370 resin is a thermoplastic fluorinated polymer resin. The properties are the same as standard grade: chemical resistance, resistance to UV, low permeation, high purity, excellent mechanical behavior with a higher HDT. This grade is especially modified in order to have a reduced mold shrinkage, low thermal expansion factor. Moreover, this grade has an increased thermal and electrical conductivity. This grade is available as pellet form for injection, extrusion, compression.

This material data has been provided by Arkema High Performance 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.

Ashby charts

Properties

General

PropertyTemperatureValueComment

Water absorption

23.0 °C

0.02 %

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Sim. to ISO 62

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

23.0 °C

4E-5 1/K

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ISO 11359-1/-2

Glass transition temperature

-40 °C

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ISO 11357-1/-2, 10°C/min

Heat deflection temperature, 1.80 MPa

120 °C

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ISO 75-1/-2

Melting point

170 °C

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ISO 11357-1/-3, 10°C/min

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 1.6 mm IEC 60695-11-10: V-0, At thickness 0.8 mm IEC 60695-11-10: V-0

Electrical

PropertyTemperatureValueComment

Dielectric constant, 100Hz

23.0 °C

33 [-]

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IEC 60250

Dissipation factor, 100Hz

23.0 °C

0.06 [-]

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IEC 60250

Volume resistivity

23.0 °C

1.00E+13 Ω·cm

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IEC 60093

Rheological Properties

PropertyTemperatureValueComment

Density of melt

1.88 g/cm³

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Melt volume-flow rate

5.8 cm³/10min

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ISO 1133, 230°C/3.8kg

Shrinkage

23.0 °C

0.7 %

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ISO 294-4 2577

Shrinkage, transverse

23.0 °C

0.7 %

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ISO 294-4 2577

Technological properties

Property
Application areas

Chemical Process Industry

Processing methods

Injection Molding:

  • Melt temperature (°C) ISO 294: 230
  • Mold temperature (°C) ISO 10724: 90
  • Injection velocity (mm/s) ISO 294: -
  • Pressure at hold (MPa) ISO 294: -