Comparison
PA12 FDM Filament vs PEEK
A side-by-side comparison of Polyamide 12 Filament for FDM and Polyether Ether Ketone.
Physical
Density
1.01-1.02 g/cm³
1.32 g/cm³
Water Absorption (24h)
0.2-0.5 %
0.15 %
Transparency
Opaque
Opaque (amber)
Shrinkage
Moderate (0.5-1.0%)
1.1 – 1.4 %
Mechanical
Young's Modulus
1.5-2.0 GPa
3.6 GPa
Tensile Strength
50-60 MPa
100 MPa
Elongation at Break
20-30 %
50 %
Impact Strength (Izod)
5-10 kJ/m²
55 J/m
Flexural Strength
—
170 MPa
Thermal
Glass Transition Temperature
45-55 °C
143 °C
Melting Point
175-185 °C
343 °C
Continuous Service Temperature
70-80 °C
260 °C
Heat Deflection Temperature
40-50 °C @ 0.45 MPa
160 °C
Electrical
Dielectric Constant
3.5-4.0
3.2
Volume Resistivity
10¹⁰-10¹² Ω·cm
10¹⁶ Ω·cm
Dielectric Strength
15-20 MV/m
—
Chemical resistance
Acids
Good resistance to weak acids and bases
Excellent
Bases
Good resistance to weak bases
Excellent
Solvents
Resistant to oils, greases, fuels. 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