Comparison
PEF Barrier Bottle vs PA66
A side-by-side comparison of Polyethylene Furanoate, Barrier Bottle Grade R and Polyamide 6,6 (Nylon).
Physical
Density
1.35-1.40 g/cm³
1.14 g/cm³
Water Absorption (24h)
0.2 %
1.2 %
Transparency
Excellent
Opaque
Shrinkage
1.0 - 2.0 %
1.5 – 2.0 %
Mechanical
Young's Modulus
4.0-4.5 GPa
3.0 GPa (dry)
Tensile Strength
65-85 MPa
80 MPa
Elongation at Break
6-12 %
60 %
Impact Strength (Izod)
0.3-0.4 J/cm
50 J/m
Flexural Strength
—
110 MPa
Thermal
Glass Transition Temperature
85-95 °C
70 °C
Melting Point
210-220 °C
255 – 265 °C
Continuous Service Temperature
80 °C
100 – 120 °C
Heat Deflection Temperature
75 °C
75 °C (unfilled)
Electrical
Dielectric Constant
3.4
4.0
Volume Resistivity
10¹³ Ω·cm
10¹² Ω·cm
Dielectric Strength
22 kV/mm
—
Chemical resistance
Acids
Good resistance
Poor
Bases
Poor resistance
Good
Solvents
Resistant to oils and greases, but can be affected by strong bases
—
UV Resistance
Moderate
Fair
Alcohols
—
Good
Oils & Fuels
—
Excellent
Sustainability
Recyclability
Potentially recyclable (requires separate stream)
Recyclable
Recycling Code
7 (Other, but aiming for PET stream)
7
Carbon Footprint
Significantly lower than PET
~7.4 kg CO₂e / kg
Bio-based Content
—
0 – 100 % (bio grades)