Comparison
ASA FDM Filament vs PLA
A side-by-side comparison of Acrylonitrile Styrene Acrylate Filament for FDM and Polylactic Acid.
Physical
Density
1.07 g/cm³
1.24 g/cm³
Water Absorption (24h)
0.1-0.3 %
0.5 %
Transparency
Opaque
Semi-transparent
Shrinkage
Moderate (0.4-0.7%)
0.3 – 0.5 %
Mechanical
Young's Modulus
2.5-3.0 GPa
3.5 GPa
Tensile Strength
45-55 MPa
50 – 65 MPa
Elongation at Break
4-7 %
6 %
Impact Strength (Izod)
3-6 kJ/m²
16 J/m
Flexural Strength
—
80 MPa
Thermal
Glass Transition Temperature
90-100 °C
60 °C
Melting Point
230-250 °C
150 – 160 °C
Continuous Service Temperature
70-80 °C
45 °C
Heat Deflection Temperature
80-90 °C @ 0.45 MPa
55 °C
Electrical
Dielectric Constant
3.0-3.2
3.0
Volume Resistivity
10¹³-10¹⁵ Ω·cm
10¹⁴ Ω·cm
Dielectric Strength
18-25 MV/m
—
Chemical resistance
Acids
Good resistance to dilute acids
Fair
Bases
Moderate resistance to weak bases
Poor
Solvents
Attacked by ketones, esters, chlorinated hydrocarbons
—
UV Resistance
Excellent
Poor
Alcohols
—
Fair
Hydrolysis
—
Poor
Sustainability
Recyclability
Recyclable (ABS stream, though less common)
Industrially compostable
Recycling Code
7 (Other)
7
Carbon Footprint
Moderate to High
~1.6 kg CO₂e / kg
Bio-based Content
—
100 %