HIPS vs ASA
Compare HIPS and ASA filaments side-by-side so you can pick the right one for your 3D printing project.
HIPS vs ASA: HIPS is known for impact-tolerant, while ASA is known for excellent uv resistance (outdoors indefinitely). Both have recommended enclosure requirements; HIPS is less moisture-sensitive; ASA prints at higher nozzle temperatures (220-275°C vs 220-250°C). Choose HIPS for impact-tolerant, or ASA for excellent uv resistance (outdoors indefinitely).
Key differences at a glance
HIPS
BHigh Impact Polystyrene
Impact-tolerant, low density, good for wearables/props
ASA
AAcrylonitrile Styrene Acrylate
Excellent UV resistance (outdoors indefinitely), tough, matte surface
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
HIPS Strengths
- Impact-tolerant, low density, good for wearables/props
- Often used as soluble support for ASA/ABS (limonene)
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)
Considerations
HIPS Caveats
- Often positioned as support material, but usable standalone
ASA Caveats
- Still off-gasses; enclosure/ventilation recommended
- Can still warp; needs tuning