Comparison
Bio-PA11 Automotive vs PETG
A side-by-side comparison of Bio-based Polyamide 11, Automotive Grade P and Polyethylene Terephthalate Glycol.
Physical
Density
1.01-1.03 g/cm³
1.27 g/cm³
Water Absorption (24h)
1.5-2.5 %
0.13 %
Transparency
Translucent to opaque
Transparent
Shrinkage
1.0 - 2.5 %
0.2 – 0.5 %
Mechanical
Young's Modulus
2.0-3.0 GPa
2.1 GPa
Tensile Strength
50-70 MPa
50 MPa
Elongation at Break
30-60 %
120 %
Impact Strength (Izod)
5.0-10.0 J/cm
100 J/m
Flexural Strength
—
70 MPa
Thermal
Glass Transition Temperature
40-60 °C
80 °C
Melting Point
170-185 °C
—
Continuous Service Temperature
90-100 °C
65 °C
Heat Deflection Temperature
40-50 °C
70 °C
CTE
—
68 × 10⁻⁶ /K
Electrical
Dielectric Constant
4.5
3.3
Volume Resistivity
10¹¹ Ω·cm
10¹⁴ Ω·cm
Dielectric Strength
25 kV/mm
—
Chemical resistance
Acids
Moderate resistance
Good
Bases
Good resistance
Fair
Solvents
Good resistance to oils, greases, fuels; attacked by phenols and strong acids
—
UV Resistance
Moderate (requires additive)
Fair
Alcohols
—
Good
Oils
—
Good
Sustainability
Recyclability
Recyclable (often downcycled)
Recyclable
Recycling Code
7 (Other)
1
Carbon Footprint
Significantly lower than fossil-based PA11
~2.7 kg CO₂e / kg
Bio-based Content
—
0 %