Plastic Film Performance Comparison

Property Unit EVAL LDPE HDPE BOPP BOPA PET
Density g/cm3 -- 0.92 0.96 0.90 1.15 1.40
Thickness μm 15 30 20 20 15 12
Tensile Strength MPa 50 ~ 80 20 ~ 30 20 ~ 30 180 ~ 300 180 ~ 220 140 ~ 180
Stretch Rate % 160 ~ 200 200 ~ 500 40 ~ 310 50 ~ 110 60 60 ~ 100
Impact Strength KJ/m2 3 27 12 11.2 10.5 5.0
Oil Resistivity h -- 20 40 44 -- --
Heat Resistivity (Melting Point) 180 110 137 -- 223 260
Transparency % 1.8 12.0 75.5 88 88 87
Oxygen Permeability mL / (m2*24h*0.1MPa) 7 7500 5600 3900 35 2500
Moisture Permeability (38℃) g/(m2*24h) 50 163 79 50 134 221
Water Absorption % 65 0.2 0.7 0.3 89 0.2

EVAL: Ethylene vinyl alcohol (EVOH)

LDPE: Low-density polyethylene

HDPE: High-density polyethylene

BOPP: Biaxially oriented polypropylene

BOPA: Biaxially oriented polyamide (nylon)

PET: Polyethylene terephthalate


The Moisture Permeability for Common Plastic film