Kynar® 740E

Alternative and trade names
PVDF
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Description

Kynar® resins are fluorinated thermoplastic homopolymers. Outstanding characteristics: chemical resistance, imperviousness to UV, high barrier properties, high purity, good mechanical and thermo-mechanical properties.

Kynar® 740 E resin is a standard grade of granules for extrusion of tubes and plaques, compression and transfer molding. This product is ANSI/NSF Standard 61 certified. This product is compliant with the EU positive list.

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 Standard

Density

1.78 g/cm³

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dry

ISO 1183

Limiting oxygen index

42 %

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dry

ISO 4589-1/-2

Water absorption

0.008 %

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Sim. to ISO 62

Mechanical

PropertyTemperatureValueConditionTesting StandardComment

Elastic modulus

2 GPa

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dry

ISO 527-1/-2

Elongation

50 %

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dry

ISO 527-1/-2

min. | nominal

Elongation at yield

9 %

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dry

ISO 527-1/-2

Impact strength, Charpy notched

23 °C

36 kJ/m²

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dry

ISO 179/1eA

Yield strength

50 MPa

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dry

ISO 527-1/-2

Thermal

PropertyValueConditionTesting StandardPressureComment

Coefficient of thermal expansion

0.00015 1/K

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dry

ISO 11359-1/-2

Glass transition temperature

-40 °C

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dry

ISO 11357-1/-2

10°C/min

Heat deflection temperature

104 °C

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dry

ISO 75-1/-2

2 MPa

Melting point

169 °C

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dry

ISO 11357-1/-3

10°C/min

Flammability

At thickness 1.6 mm IEC 60695-11-10: V-0 and yellow card available

Rheological Properties

PropertyValueConditionTesting StandardComment

Melt volume-flow rate

1.4 cm³/10min

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dry

ISO 1133

230°C/3.8kg

Shrinkage

2.5 %

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dry

ISO 294-4

2.5 %

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dry

ISO 294-4

Transverse

Thermal conductivity of melt

0.19 W/(m·K)

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Technological properties

Property
Application areas

Potable Water Distribution

Certifications

Yellow Card

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: -