Kynar Flex® 2850-07

Alternative and trade names
PVDF
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Description

Kynar Flex® resins are fluorinated thermoplastic copolymers.

Outstanding characteristics: chemical resistance, imperviousness to UV, high barrier properties, high purity, good mechanical and thermo-mechanical properties.

Kynar Flex® 2850-07 resin is a moderate viscosity version of

Kynar Flex® 2850-00 resin in for ease of extrusion and co-extrusion. It has a UL RTI temperature rating of 140 degrees C.

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

PropertyValueTesting StandardConditionComment

Coefficient of friction

0.19 [-]

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ASTM D1894

vs Steel, Kinetic

0.26 [-]

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ASTM D1894

vs Steel, Static

Density

1.77 - 1.8 g/cm³

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ASTM D792

1.77 g/cm³

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ISO 1183

dry

Limiting oxygen index

43 %

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ASTM D2863

Water absorption

0.03 %

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Sim. to ISO 62

Mechanical

PropertyTemperatureValueTesting StandardConditionComment

Compressive strength

41.4 - 58.6 MPa

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ASTM D695

Elastic modulus

1.0 - 1.5 GPa

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ASTM D638

1.3 GPa

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ISO 527-1/-2

dry

Elongation

30 - 200 %

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ASTM D638

50 %

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ISO 527-1/-2

dry

min. | nominal

Elongation at yield

5 - 15 %

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ASTM D638

11 %

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ISO 527-1/-2

dry

Flexural modulus

1.0 - 1.2 GPa

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ASTM D790

Flexural strength

20.7 - 34.5 MPa

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ASTM D790

at 5% strain

Hardness, Shore D

70 - 75 [-]

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ASTM D2240

Impact strength, Charpy notched

No Break at 23°C

ISO 179/1eA

dry

Impact strength, Charpy notched, ASTM

23 °C

160 - 427 J/m

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ASTM D256

Impact strength, Charpy unnotched, ASTM

No Break at 23°C

ASTM D256

Tensile strength

27.6 - 48.3 MPa

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ASTM D638

Yield strength

17 MPa

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ISO 527-1/-2

dry

31 - 41.4 MPa

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ASTM D638

Thermal

PropertyValueTesting StandardPressureConditionComment

Coefficient of thermal expansion

0.000126 - 0.000185 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

38 - 55 °C

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ASTM D648

2 MPa

248 °F/hr

60 - 75 °C

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ASTM D648

0.45 MPa

248 °F/hr

Melting point

155 - 160 °C

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ASTM D3418

157 °C

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ISO 11357-1/-3

dry

10°C/min

Relative temperature index, electrical

140 °C

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UL 746B

Relative temperature index, mechanical strength

140 °C

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UL 746B

Specific heat capacity

745 - 958 J/(kg·K)

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DSC

Thermal conductivity

0.144 - 0.18 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 1.5 mm IEC 60695-11-10: V-0, At thickness 0.8 mm IEC 60695-11-10: V-0 and yellow card available

Electrical

PropertyValueFrequencyTesting StandardCondition

Dielectric constant

3.5 - 10.2 [-]

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1KHz

ASTM D150

6.85 [-]

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100Hz

IEC 60250

dry

Dielectric strength

1.4 kV/mm

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IEC 60243-1

dry

51.2 - 63 kV/mm

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ASTM D149

Dissipation factor

1.2e-05 [-]

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100Hz

IEC 60250

dry

0.01 - 0.22 [-]

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100KHz

ASTM D150

Volume resistivity

2e+14 Ω·cm

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ASTM D257

65% RH

2e+14 Ω·cm

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IEC 60093

dry

Optical

PropertyValueTesting StandardComment

Refractive index

1 [-]

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ASTM D542

sodium D line

Rheological Properties

PropertyValueTesting StandardComment

Melt mass-flow rate

9 - 16 g/10min

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ASTM D1238

230°C/12.5kg

Melt viscosity

1600 - 2000 Pa·s

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ASTM D3835

Technological properties

Property
Application areas

Chemical Process Industry,Chemical Process Industry - Injection Molding,Foamed PVDF Cable Jacketing,Performance Wire,Underground Fuel Containment