PVF Film

PVF Film is a thin sheet of polyvinyl fluoride prized for its excellent chemical resistance, UV stability, and flame retardancy. Unlike many polymers, PVF retains its properties over long-term outdoor exposure, making it an essential material for protective coatings and laminates. Industries including aerospace, renewable energy, and construction use PVF films for insulation, protective surface layers, and encapsulation. Specific applications include protective backsheets in photovoltaic modules, flame-retardant interior aircraft panels, and weatherproof architectural laminates. In research, PVF films are investigated for dielectric stability, role in multilayer composites, and resistance to radiation aging. Its balance of optical clarity, toughness, and environmental resistance ensures PVF film remains indispensable in engineering applications where performance under extended environmental stress is critical.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Foil

Thickness		±20%

Material Properties for Polymers

Electrical Properties

Element	Value
Dielectric constant @1kHz	8
Dissipation factor @ 1kHz	0.04
Dielectric strength( kV mm⁻¹ )	20
Volume resistivity( Ohmcm )	10¹³

Physical Properties

Element	Value
Flammability	V0
Refractive index	1.46
Resistance to Ultra-violet	Excellent
Limiting oxygen index( % )	35
Water absorption - over 24 hours( % )	0.05
Density( gcm⁻³ )	1.37-1.39

Mechanical Properties

Element	Value
Hardness - Rockwell	D80 - Shore
Poisson's ratio	0.4
Elongation at break( % )	90-250
Tensile modulus( GPa )	2.1-2.6
Izod impact strength( J m⁻¹ )	180
Tensile strength( MPa )	55-110
Tear strength( N mm⁻¹ )	130-200 (initial)

Thermal Properties

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