Kynar Flex® 2750-01

Alternative and trade names
PVDF
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Description

Kynar Flex® resins are fluorinated thermoplastic copolymers.

Outstanding characteristics: chemical resistance, imperviousness to UV, barrier properties and high purity.

Kynar Flex® 2750-01 resin is a grade of granules to be used where maximum flexibility or impact strength is required. A powder form is available as

Kynar Flex® 2751 resin.

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

0.54 [-]

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ASTM D1894

vs Steel, Kinetic

0.55 [-]

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ASTM D1894

vs Steel, Static

Density

1.78 - 1.8 g/cm³

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ASTM D792

1.78 g/cm³

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ISO 1183

dry

Limiting oxygen index

43 %

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ASTM D2863

49 %

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ISO 4589-1/-2

dry

Water absorption

0.03 %

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Sim. to ISO 62

0.03 - 0.06 %

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ASTM D570

Mechanical

PropertyValueTesting StandardConditionComment

Compressive strength

24.1 - 31 MPa

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ASTM D695

Elastic modulus

0.276 - 0.448 GPa

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ASTM D638

0.526 GPa

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ISO 527-1/-2

dry

Elongation

50 %

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ISO 527-1/-2

dry

min. | nominal

200 - 400 %

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ASTM D638

Elongation at yield

15 - 25 %

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ASTM D638

15 %

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ISO 527-1/-2

dry

Flexural modulus

0.276 - 0.414 GPa

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ASTM D790

Flexural strength

13.8 - 24.1 MPa

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ASTM D790

at 5% strain

Hardness, Shore D

57 - 62 [-]

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ASTM D2240

Impact strength, Charpy notched

No Break at 23°C

ISO 179/1eA

dry

Tensile strength

20 - 27.6 MPa

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ASTM D638

Yield strength

13.8 - 21.4 MPa

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ASTM D638

27 MPa

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ISO 527-1/-2

dry

Thermal

PropertyValueTesting StandardConditionPressureComment

Coefficient of thermal expansion

0.000162 - 0.000216 1/K

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ASTM D696

0.000177 1/K

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ISO 11359-1/-2

dry

Glass transition temperature

-40 °C

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ASTM D7028, ISO 11357-1/-2

dry

10°C/min

Heat deflection temperature

35 - 52 °C

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ASTM D648

2 MPa

248 °F/hr

43 °C

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ISO 75-1/-2

dry

2 MPa

49 - 66 °C

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ASTM D648

0.45 MPa

248 °F/hr

57 °C

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ISO 75-1/-2

dry

0.45 MPa

Melting point

130 - 138 °C

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ASTM D3418

134 °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

Vicat softening temperature

61 °C

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ISO 306

50°C/h 50N

Flammability

At thickness 1.5 mm IEC 60695-11-10: V-0, At thickness 0.8 mm IEC 60695-11-10: V-0

Electrical

PropertyValueFrequencyTesting StandardCondition

Dielectric constant

3.8 - 12.1 [-]

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1KHz

ASTM D150

7 [-]

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1MHz

IEC 60250

dry

11.5 [-]

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100Hz

IEC 60250

dry

Dielectric strength

43.3 - 51.2 kV/mm

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ASTM D149

Dissipation factor

0.02 - 0.24 [-]

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100KHz

ASTM D150

0.024 [-]

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100Hz

IEC 60250

dry

Surface resistivity

4.8e+11 - 5.1e+11 Ω/sq

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ASTM D257

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 StandardConditionComment

Melt mass-flow rate

4 - 14 g/10min

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ASTM D1238

230°C/12.5kg

Melt viscosity

2000 - 2500 Pa·s

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ASTM D3835

Melt volume-flow rate

1.9 cm³/10min

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ISO 1133

dry

230°C/5kg

Technological properties

Property
Application areas

Fuel Management - Fuel Lines,Chemical Process Industry,Tubing and Hoses,Performance Wire,Offshore Umbilicals

Processing methods

Injection Molding:

  • Melt temperature (°C) ISO 294: 240
  • Mold temperature (°C) ISO 10724: 60
  • Injection velocity (mm/s) ISO 294: 10
  • Pressure at hold (MPa) ISO 294: 13