Comparison
PVDC Barrier Film vs PA66
A side-by-side comparison of Polyvinylidene Chloride for Barrier Films and Polyamide 6,6 (Nylon).
Physical
Density
1.6-1.7 g/cm³
1.14 g/cm³
Water Absorption (24h)
<0.2 %
1.2 %
Transparency
Good
Opaque
Shrinkage
0.3-0.6 %
1.5 – 2.0 %
Mechanical
Young's Modulus
1.0-1.5 GPa
3.0 GPa (dry)
Tensile Strength
30-50 MPa
80 MPa
Elongation at Break
10-40 %
60 %
Impact Strength (Izod)
20-40 J/m
50 J/m
Flexural Strength
—
110 MPa
Thermal
Glass Transition Temperature
70-80 °C
70 °C
Melting Point
N/A (degrades)
255 – 265 °C
Continuous Service Temperature
50-60 °C
100 – 120 °C
Heat Deflection Temperature
50-60 °C
75 °C (unfilled)
Electrical
Dielectric Constant
3.5-4.5
4.0
Volume Resistivity
10¹⁰-10¹² Ω⋅cm
10¹² Ω·cm
Dielectric Strength
10-20 kV/mm
—
Chemical resistance
Acids
Good resistance
Poor
Bases
Good resistance
Good
Solvents
Insoluble in most common solvents
—
UV Resistance
Fair (requires formulation)
Fair
Alcohols
—
Good
Oils & Fuels
—
Excellent
Sustainability
Recyclability
Challenging due to multilayer structures
Recyclable
Recycling Code
3 (PVC) or depends on multilayer
7
Carbon Footprint
Moderate to High
~7.4 kg CO₂e / kg
Bio-based Content
—
0 – 100 % (bio grades)