PET Laminate Coil

PET Laminate Coil offers continuous lengths of polyethylene terephthalate film reinforced or coated with functional layers to enhance strength, barrier performance, or thermal stability. The roll format enables high-throughput production for electronics, packaging, and insulation industries. Industries use PET laminate coils for multilayer electrical insulation, barrier films in flexible packaging, and protective back sheets in photovoltaic modules. Specific applications include moisture-resistant insulating wraps for high-voltage systems, chemical barrier layers in medical device packaging, and UV-resistant coatings in solar panel films. In research, PET laminate coils support roll-to-roll fabrication of advanced composite films, interface adhesion studies, and optimization of multilayer barrier structures. The combination of PET’s core properties with engineered laminate benefits makes them vital for high-performance industrial and scientific uses.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Laminate

Thickness		±10%

Coil

Coil Width	=<100mm	±1mm
Coil Width	>100mm	+2% / -1%
Length		+10% / -0%

Material Properties for Polymers

Chemical Resistance

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

Mechanical Properties

Element	Value
Coefficient of friction	0.2-0.4
Hardness - Rockwell	M94-101
Poisson's ratio	0.37-0.44
Tensile modulus( GPa )	02-Apr
Izod impact strength( J m⁻¹ )	13-35
Tensile strength( MPa )	80, for biax film 190-260

Electrical Properties

Element	Value
Dielectric constant @1MHz	3
Dissipation factor @ 1kHz	0.002
Dielectric strength( kV mm⁻¹ )	17
Surface resistivity( Ohm/sq )	10¹³
Volume resistivity( Ohmcm )	>10¹⁴

Physical Properties

Element	Value
Flammability	HB
Radiation resistance	Good
Refractive index	1.58-1.64
Resistance to Ultra-violet	Fair?
Limiting oxygen index( % )	21
Water absorption - equilibrium( % )	0.7
Water absorption - over 24 hours( % )	0.1
Density( gcm⁻³ )	1.3-1.4

Thermal Properties

Element	Value
Heat-deflection temperature - 0.45MPa( C )	115
Heat-deflection temperature - 1.8MPa( C )	80
Lower working temperature( C )	20
Upper working temperature( C )	115-170
Specific heat( J K⁻¹ kg⁻¹ )	1200-1350
Thermal conductivity( W m⁻¹ K⁻¹ )	0.15-0.4@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	20-80