Comparison
Bio-PA11 Automotive vs PA66
A side-by-side comparison of Bio-based Polyamide 11, Automotive Grade P and Polyamide 6,6 (Nylon).
Physical
Density
1.01-1.03 g/cm³
1.14 g/cm³
Water Absorption (24h)
1.5-2.5 %
1.2 %
Transparency
Translucent to opaque
Opaque
Shrinkage
1.0 - 2.5 %
1.5 – 2.0 %
Mechanical
Young's Modulus
2.0-3.0 GPa
3.0 GPa (dry)
Tensile Strength
50-70 MPa
80 MPa
Elongation at Break
30-60 %
60 %
Impact Strength (Izod)
5.0-10.0 J/cm
50 J/m
Flexural Strength
—
110 MPa
Thermal
Glass Transition Temperature
40-60 °C
70 °C
Melting Point
170-185 °C
255 – 265 °C
Continuous Service Temperature
90-100 °C
100 – 120 °C
Heat Deflection Temperature
40-50 °C
75 °C (unfilled)
Electrical
Dielectric Constant
4.5
4.0
Volume Resistivity
10¹¹ Ω·cm
10¹² Ω·cm
Dielectric Strength
25 kV/mm
—
Chemical resistance
Acids
Moderate resistance
Poor
Bases
Good resistance
Good
Solvents
Good resistance to oils, greases, fuels; attacked by phenols and strong acids
—
UV Resistance
Moderate (requires additive)
Fair
Alcohols
—
Good
Oils & Fuels
—
Excellent
Sustainability
Recyclability
Recyclable (often downcycled)
Recyclable
Recycling Code
7 (Other)
7
Carbon Footprint
Significantly lower than fossil-based PA11
~7.4 kg CO₂e / kg
Bio-based Content
—
0 – 100 % (bio grades)