Comparison
ASA FDM Filament vs PEEK
A side-by-side comparison of Acrylonitrile Styrene Acrylate Filament for FDM and Polyether Ether Ketone.
Physical
Density
1.07 g/cm³
1.32 g/cm³
Water Absorption (24h)
0.1-0.3 %
0.15 %
Transparency
Opaque
Opaque (amber)
Shrinkage
Moderate (0.4-0.7%)
1.1 – 1.4 %
Mechanical
Young's Modulus
2.5-3.0 GPa
3.6 GPa
Tensile Strength
45-55 MPa
100 MPa
Elongation at Break
4-7 %
50 %
Impact Strength (Izod)
3-6 kJ/m²
55 J/m
Flexural Strength
—
170 MPa
Thermal
Glass Transition Temperature
90-100 °C
143 °C
Melting Point
230-250 °C
343 °C
Continuous Service Temperature
70-80 °C
260 °C
Heat Deflection Temperature
80-90 °C @ 0.45 MPa
160 °C
Electrical
Dielectric Constant
3.0-3.2
3.2
Volume Resistivity
10¹³-10¹⁵ Ω·cm
10¹⁶ Ω·cm
Dielectric Strength
18-25 MV/m
—
Chemical resistance
Acids
Good resistance to dilute acids
Excellent
Bases
Moderate resistance to weak bases
Excellent
Solvents
Attacked by ketones, esters, chlorinated hydrocarbons
Excellent
UV Resistance
Excellent
Fair
Hydrolysis (steam)
—
Excellent
Sustainability
Recyclability
Recyclable (ABS stream, though less common)
Recyclable (specialty)
Recycling Code
7 (Other)
7
Carbon Footprint
Moderate to High
~30 kg CO₂e / kg