PVB vs ASA
Compare PVB and ASA filaments side-by-side. See which one is best for your 3D printing project.
PVB
SPPolyvinyl Butyral
Alcohol smoothing (isopropanol) can fuse layers and create a slick surface
ASA
AAcrylonitrile Styrene Acrylate
Excellent UV resistance (outdoors indefinitely), tough, matte surface
Detailed Comparison
Property
PVB
ASA
Tier Rating
Tier SPECIAL
Tier A
Family
PVB
ASA
Nozzle Temp
190-220°C
220-275°C
Bed Temp
50-70°C
90-110°C
Enclosure
not needed
recommended
Cooling
Moderate cooling
Low to moderate; avoid drafts
Moisture Sensitivity
moderate
moderate
Strengths Comparison
PVB Strengths
- Alcohol smoothing (isopropanol) can fuse layers and create a slick surface
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
PVB Caveats
- Alcohol vapor can fuse the spool itself (example: spool stuck together)
ASA Caveats
- Still off-gasses; enclosure/ventilation recommended
- Can still warp; needs tuning
Frequently Asked Questions
Is PVB or ASA better for 3D printing?
ASA is generally rated higher (Tier A) compared to PVB (Tier SPECIAL). However, the best choice depends on your specific needs: PVB is best for Alcohol smoothing (isopropanol) can fuse layers and create a slick surface, while ASA is best for Excellent UV resistance (outdoors indefinitely), tough, matte surface.
What are the temperature differences between PVB and ASA?
PVB prints at 190-220°C nozzle / 50-70°C bed. ASA prints at 220-275°C nozzle / 90-110°C bed.
Do PVB and ASA need an enclosure?
PVB: not needed. ASA: recommended.
Which is more beginner-friendly: PVB or ASA?
PVB is more beginner-friendly as it doesn't require an enclosure.