Kynar® 720 RED America

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® 720 resin is a standard grade of granules for injection molding. This product is ANSI/NSF Standard 61 certified.

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.

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Properties

General

PropertyTemperatureValueComment

Abrasion resistance, weight loss

5 - 9 mg

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ASTM-G195-13A, CS 17 1000g:pad, 1000 cycles

Coefficient of friction, kinetic

0.14 [-]

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ASTM D1894, vs Steel

Coefficient of friction, static

0.2 [-]

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ASTM D1894, vs Steel

Density

23.0 °C

1.77 - 1.79 g/cm³

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ASTM D792

Limiting oxygen index

23.0 °C

44 %

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ASTM D2863

Water absorption

23.0 °C

0.01 - 0.03 %

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ASTM D570

Mechanical

PropertyTemperatureValueComment

Compressive strength

23.0 °C

68.9 - 103 MPa

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ASTM D695

Elastic modulus

23.0 °C

1.38 - 2.31 GPa

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ASTM D638

Elongation

23.0 °C

20 - 100 %

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ASTM D638

Elongation at yield

23.0 °C

5 - 10 %

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ASTM D638

Flexural modulus

23.0 °C

1.38 - 2.31 GPa

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ASTM D790

Hardness, Shore D

23.0 °C

76 - 80 [-]

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ASTM D2240

Impact strength, Charpy notched, ASTM

23.0 °C

80.1 - 214 J/m

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ASTM D256

Impact strength, Charpy unnotched, ASTM

23.0 °C

1070 - 4270 J/m

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ASTM D256

Tensile strength

23.0 °C

34.5 - 55.2 MPa

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ASTM D638

Yield strength

23.0 °C

44.8 - 55.2 MPa

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ASTM D638

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

23.0 °C

1.19E-4 - 1.44E-4 1/K

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ASTM D696

Glass transition temperature

-40.6 - -38.3 °C

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ASTM D7028

Heat deflection temperature, 0.45 MPa

125 - 140 °C

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ASTM D648, 248 °F/hr

Heat deflection temperature, 1.80 MPa

105 - 115 °C

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ASTM D648, 248 °F/hr

Melting point

165 - 172 °C

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ASTM D3418

Relative temperature index, electrical

150 °C

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UL 746B

Relative temperature index, mechanical strength

150 °C

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UL 746B

Specific heat capacity

23.0 °C

745 - 958 J/(kg·K)

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DSC

Thermal conductivity

23.0 °C

0.17 - 0.19 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 1.6 mm IEC 60695-11-10: V-0, At thickness 0.8 mm IEC 60695-11-10: V-0 and yellow card available

Electrical

PropertyTemperatureValueComment

Dielectric constant, 1KHz

23.0 °C

4.5 - 9.5 [-]

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ASTM D150

Dielectric strength

23.0 °C

67 kV/mm

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ASTM D149

Dissipation factor, 100kHz

23.0 °C

0.01 - 0.21 [-]

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ASTM D150

Volume resistivity

23.0 °C

2.00E+14 Ω·cm

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ASTM D257, 65% RH

Optical

PropertyValueComment

Refractive index

1.42 [-]

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ASTM D542, sodium D line

Rheological Properties

PropertyTemperatureValueComment

Melt mass-flow rate

5.2 - 6.5 g/10min

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ASTM D1238, 230°C/3.8kg

Melt viscosity

23.0 °C

600 - 1200 Pa·s

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ASTM D3835

Technological properties

Property
Application areas

Fuel Management - Fuel Lines,Chemical Process Industry,Chemical Process Industry - High Purity Piping,Chemical Process Industry - Injection Molding,Tower Packing,Tubing and Hoses,Performance Wire,Photovoltaic / Solar Film,Potable Water Distribution

Processing methods

Injection Molding:

  • Melt temperature (°C) ISO 294: 210
  • Mold temperature (°C) ISO 10724: 90
  • Injection velocity (mm/s) ISO 294: 10
  • Pressure at hold (MPa) ISO 294: 13