Prusament ASA vs TPU
Compare Prusament ASA and TPU filaments side-by-side so you can pick the right one for your 3D printing project.
Prusament ASA vs TPU: Prusament ASA is known for excellent uv resistance (outdoors indefinitely), while TPU is known for excellent layer adhesion. Both have no enclosure requirements; Prusament ASA is less moisture-sensitive; Prusament ASA prints at higher nozzle temperatures (260°C vs 200-240°C). Choose Prusament ASA for excellent uv resistance (outdoors indefinitely), or TPU for excellent layer adhesion.
Key differences at a glance
Prusament ASA
-Excellent UV resistance (outdoors indefinitely), tough, matte surface
TPU
SThermoplastic Polyurethane
Excellent layer adhesion; extremely impact resistant; highly durable
Detailed Comparison
Green marks the generally easier or more forgiving option in that row, based on tier, enclosure needs, and moisture sensitivity. It is not always the better choice for a specific job, so weigh it against what your project actually needs.
Strengths Comparison
Prusament ASA Strengths
- Excellent UV resistance (outdoors indefinitely), tough, matte surface
- Less warping than ABS; low viscosity enables very high speed printing
- High heat tolerance (~boiling water range)
TPU Strengths
- Excellent layer adhesion; extremely impact resistant; highly durable
- Great for combat robots, tactical/rough-use parts
- Rubber-like parts (gaskets, grips, bumpers, wheels)
Considerations
Prusament ASA Caveats
- Still off-gasses; enclosure/ventilation recommended
- Can still warp; needs tuning
TPU Caveats
- Slow printing; retraction can cause jams (especially in Bowden setups)
- Stringing is common
- Very moisture sensitive; wet TPU prints poorly