Kynar Superflex® 2500-20

Alternative and trade names
PVDF
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Description

Kynar Superflex® resin is a thermoplastic fluorinated polymer.

The properties are the same as standard grades: chemical resistance, resistance to UV, low permeation, high purity, excellent mechanical behavior.

More over, this grade is very flexible and is suitable in electrical isolation cable, tubing and co-extrusion.

This grade is available as pellet form for injection, extrusion, compression.

This material data has been provided by Arkema Technical Polymers.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
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

0.49 [-]

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ASTM D1894

vs Steel, Static

0.54 [-]

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ASTM D1894

vs Steel, Kinetic

Density

1.79 g/cm³

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ISO 1183

dry

1.8 - 1.82 g/cm³

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ASTM D792

Limiting oxygen index

42 %

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ASTM D2863

44 %

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ISO 4589-1/-2

dry

Water absorption

0.03 %

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Sim. to ISO 62

0.07 %

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ASTM D570

max.

Mechanical

PropertyValueTesting StandardConditionComment

Compressive strength

13.8 - 20.7 MPa

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ASTM D695

Elastic modulus

0.241 - 0.379 GPa

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ASTM D638

0.35 GPa

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ISO 527-1/-2

dry

Elongation

50 %

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ISO 527-1/-2

dry

min. | nominal

500 - 800 %

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ASTM D638

Elongation at yield

17 - 25 %

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ASTM D638

18 %

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ISO 527-1/-2

dry

Flexural modulus

0.193 - 0.276 GPa

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ASTM D790

Flexural strength

10.3 - 17.2 MPa

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ASTM D790

at 5% strain

Hardness, Shore D

50 - 57 [-]

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ASTM D2240

Impact strength, Charpy notched

No Break at 23°C

ISO 179/1eA

dry

Impact strength, Charpy notched, ASTM

No Break at 23°C

ASTM D256

Impact strength, Charpy unnotched, ASTM

No Break at 23°C

ASTM D256

Tensile strength

13.8 - 31 MPa

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ASTM D638

Yield strength

11.7 - 19.3 MPa

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ASTM D638

15 MPa

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ISO 527-1/-2

dry

Thermal

PropertyValueTesting StandardConditionPressureComment

Coefficient of thermal expansion

0.000153 - 0.000194 1/K

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ASTM D696

Glass transition temperature

-43.3 - -40 °C

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ASTM D7028

-40 °C

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ISO 11357-1/-2

dry

10°C/min

Heat deflection temperature

27 - 38 °C

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ASTM D648

2 MPa

248 °F/hr

31 °C

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ISO 75-1/-2

dry

2 MPa

Melting point

117 - 125 °C

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ASTM D3418

122 °C

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ISO 11357-1/-3

dry

10°C/min

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 1 mm IEC 60695-11-10: V-0 and yellow card available

Electrical

PropertyValueFrequencyTesting StandardCondition

Dielectric constant

4.5 - 13.5 [-]

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1KHz

ASTM D150

Dielectric strength

12 kV/mm

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IEC 60243-1

dry

31.5 - 43.3 kV/mm

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ASTM D149

Dissipation factor

0.05 - 0.29 [-]

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100KHz

ASTM D150

Surface resistivity

8.5e+11 - 9.2e+11 Ω/sq

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ASTM D257

Volume resistivity

2e+14 Ω·cm

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ASTM D257

65% RH

Optical

PropertyValueTesting StandardComment

Refractive index

1 [-]

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ASTM D542

sodium D line

Rheological Properties

PropertyValueTesting StandardConditionComment

Melt mass-flow rate

1 - 15 g/10min

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ASTM D1238

230°C/3.8kg

Melt viscosity

900 - 1600 Pa·s

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ASTM D3835

Melt volume-flow rate

5.8 cm³/10min

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ISO 1133

dry

232°C/3.8kg

Technological properties

Property
Application areas

Chemical Process Industry,Chemical Process Industry - Injection Molding,Fluoropolymer Processing Aids,Tubing and Hoses,Automotive Cables,Performance Wire,Plenum Cable,Lithium Ion Battery Binder

Certifications

Yellow Card