Polypropylene Film

Polypropylene Film offers excellent chemical resistance, low moisture absorption, and high fatigue endurance in a thin, flexible format ideal for packaging, electrical insulation, and barrier applications. Its lightweight nature and dielectric properties make it suitable for capacitor dielectrics, medical packaging films, and chemically resistant liners. The film form allows easy conversion into multilayer laminates, patterned membranes, or surface-treated sheets for improved adhesion and functionality. Applications include laboratory sample pouches, protective film layers in composite manufacturing, and separators in electrochemical systems. In research, PP film is used to study polymer barrier behavior, develop low-cost chemical-resistant membranes, and optimize film processing for durability in aggressive environments. Combining mechanical flexibility with environmental resistance, PP film remains a versatile solution for both industrial and experimental use cases.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Foil

Thickness		±20%

Material Properties for Polymers

Chemical Resistance

Element	Value
Acids - concentrated	Good-Fair
Acids - dilute	Good-Fair
Alcohols	Good
Alkalis	Good
Aromatic hydrocarbons	Fair
Greases and Oils	Good-Fair
Halogenated Hydrocarbons	Good-Poor
Halogens	Poor
Ketones	Good

Mechanical Properties

Element	Value
Coefficient of friction	0.1-0.3
Hardness - Rockwell	R80-100
Elongation at break( % )	150-300, for biax film >50
Tensile modulus( GPa )	0.9-1.5, for biax film 2.2-4.2
Izod impact strength( J m⁻¹ )	20-100
Abrasive resistance - ASTM D1044( mg/1000 cycles )	13-16
Tensile strength( MPa )	25-40, for biax film 130-300,

Electrical Properties

Element	Value
Dielectric constant @1MHz	2.2-2.6
Dissipation factor @ 1MHz	0.0003-0.0005
Dielectric strength( kV mm⁻¹ )	30-40
Surface resistivity( Ohm/sq )	10¹³
Volume resistivity( Ohmcm )	10¹⁶-10¹⁸

Physical Properties

Element	Value
Flammability	HB
Radiation resistance	Fair
Refractive index	1.49
Resistance to Ultra-violet	Poor
Limiting oxygen index( % )	18
Water absorption - equilibrium( % )	0.03
Density( gcm⁻³ )	0.9

Thermal Properties

Element	Value
Heat-deflection temperature - 0.45MPa( C )	100-105
Heat-deflection temperature - 1.8MPa( C )	60-65
Lower working temperature( C )	50
Upper working temperature( C )	90-120
Specific heat( J K⁻¹ kg⁻¹ )	1700-1900
Thermal conductivity( W m⁻¹ K⁻¹ )	0.1-0.22@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	100-180