Polyvinylfluoride ( PVF )

Material Information

We stock and supply the following standard forms:

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Common Brand Names:
Tedlar

General Description:
A semi-crystalline, colourless, transparent-translucent fluoropolymer with excellent weathering resistance, good chemical resistance and low permeability to gases; it is very slow burning and has a very high tolerance of flexing. It is UV transparent, down to say 250nm for the thinner films. However, it is very expensive and unsuitable for injection moulding because its melt decomposition rate is too fast. Normally only available as film which is used for exterior glazing, release film and surface protection eg flammability reduction of aircraft interiors.

Electrical Properties

Mechanical Properties

Physical Properties

Thermal Properties

Coefficient of thermal expansion ( x10^-⁶ K^-¹ )	50-97
Heat-deflection temperature - 0.45MPa ( C )	120
Heat-deflection temperature - 1.8MPa ( C )	80
Lower working temperature ( C )	-70
Specific heat ( J K^-¹ kg^-¹ )	1000 - 1800
Upper working temperature ( C )	150 - 200

Properties for Polyvinylfluoride Film

Property		Value
Permeability to Carbon Dioxide @25C	x10^-¹³ cm³. cm cm^-² s^-¹ Pa^-¹	0.07
Permeability to Hydrogen @25C	x10^-¹³ cm³. cm cm^-² s^-¹ Pa^-¹	0.3
Permeability to Nitrogen @25C	x10^-¹³ cm³. cm cm^-² s^-¹ Pa^-¹	0.001
Permeability to Oxygen @25C	x10^-¹³ cm³. cm cm^-² s^-¹ Pa^-¹	0.015
Permeability to Water @38C	x10^-¹³ cm³. cm cm^-² s^-¹ Pa^-¹	250

We stock and supply the following standard forms:

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