Comparison
PA6 FDM Filament vs PEEK
A side-by-side comparison of Polyamide 6 Filament for FDM and Polyether Ether Ketone.
Physical
Density
1.13-1.15 g/cm³
1.32 g/cm³
Water Absorption (24h)
1.0-2.0 %
0.15 %
Transparency
Opaque
Opaque (amber)
Shrinkage
Moderate (0.8-1.2%)
1.1 – 1.4 %
Mechanical
Young's Modulus
2.5-3.0 GPa
3.6 GPa
Tensile Strength
60-70 MPa
100 MPa
Elongation at Break
15-25 %
50 %
Impact Strength (Izod)
6-12 kJ/m²
55 J/m
Flexural Strength
—
170 MPa
Thermal
Glass Transition Temperature
50-60 °C
143 °C
Melting Point
215-225 °C
343 °C
Continuous Service Temperature
80-90 °C
260 °C
Heat Deflection Temperature
50-60 °C @ 0.45 MPa
160 °C
Electrical
Dielectric Constant
4.0-4.5
3.2
Volume Resistivity
10⁹-10¹¹ Ω·cm
10¹⁶ Ω·cm
Dielectric Strength
12-18 MV/m
—
Chemical resistance
Acids
Resistant to weak acids
Excellent
Bases
Resistant to weak bases
Excellent
Solvents
Resistant to oils, greases. Attacked by strong acids, phenols.
Excellent
UV Resistance
Moderate
Fair
Hydrolysis (steam)
—
Excellent
Sustainability
Recyclability
Recyclable (within PA stream)
Recyclable (specialty)
Recycling Code
7 (Other)
7
Carbon Footprint
High
~30 kg CO₂e / kg