ASA
Acrylonitrile Styrene Acrylate
Outdoor & weather-exposed parts
Mechanically similar to ABS, UV-stable and weather-resistant. The default for parts that live outside or see sun exposure.
FDMASADark GreyMotor Mount
SECTION · 01
Strengths
& uses
Where ABS would be the right call, but the part will see sunlight or outdoor exposure.
Strengths
- The honest outdoor pick — UV-stable where most plastics chalk and fade
- Handles rain, humidity, heat, and cold in service
- Heat deflection 100 °C at 1.8 MPa — matches ABS
- Charpy impact 10.5 kJ/m² — sturdy, though not the toughest we run
Common applications
- Outdoor enclosures
- Automotive exterior
- Garden equipment
- Marine fittings
SECTION · 02
Compare with
other FDM
materials
ASA measured against the FDM core lineup.
SECTION · 03
Technical
Specifications
Manufacturer datasheet values. Real-world performance will vary — see disclaimer.
Mechanical
Properties
Properties
(XY) Tensile Modulus
2174.6 ± 41.1 MPa
ISO 527, GB/T 1040
(XY) Tensile Strength
38.6 ± 0.3 MPa
ISO 527, GB/T 1040
(XY) Elongation at Break
4.4 ± 1.0 %
ISO 527, GB/T 1040
(XY) Bending Modulus
1939.7 ± 50.4 MPa
ISO 178, GB/T 9341
(XY) Bending Strength
60.9 ± 0.9 MPa
ISO 178, GB/T 9341
(XY) Charpy Impact Strength
10.5 ± 0.6 kJ/m²
ISO 179, GB/T 1043
Thermal
Properties
Properties
Glass Transition Temperature
97.8 °C
DSC 10°C/min
Vicat Softening Temperature
105.3 °C
ISO 306, GB/T 1633
Heat Deflection Temperature (1.8 MPa)
100.2 °C
ISO 75, 1.8 MPa
Heat Deflection Temperature (0.45 MPa)
102.6 °C
ISO 75, 0.45 MPa
Chemical
Resistance
Resistance
Weak Acids
Resistant
Strong Acids
Slightly resistant
Weak Alkalis
Resistant
Strong Alkalis
Slightly resistant
Organic Solvent
Not resistant
Oils and Grease
Resistant
Equilibrium Water Absorption
0.40 %
* Actual part performance varies with geometry, build orientation, layer height, infill, and post-processing. For load-bearing or safety-critical applications, contact us for part-specific validation.
Source: Polymaker Polylite ASA datasheet (V5.3) ↓ASA · UV-Stable ABS Alternative
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