PC-PBT vs ASA
Compare PC-PBT and ASA filaments side-by-side so you can pick the right one for your 3D printing project.
PC-PBT
APolycarbonate + PBT alloy
Very easy PC-class filament (~260C), low warping, good surface quality
ASA
AAcrylonitrile Styrene Acrylate
Excellent UV resistance (outdoors indefinitely), tough, matte surface
Detailed Comparison
Property
PC-PBT
ASA
Tier Rating
Tier A
Tier A
Family
PC
ASA
Nozzle Temp
250-270°C
220-275°C
Bed Temp
80-100°C
90-110°C
Enclosure
recommended
recommended
Cooling
Low to moderate
Low to moderate; avoid drafts
Moisture Sensitivity
moderate
moderate
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
PC-PBT Strengths
- Very easy PC-class filament (~260C), low warping, good surface quality
- Maintains shatter resistance and stays durable in cold (won't get brittle)
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
PC-PBT Caveats
ASA Caveats
- Still off-gasses; enclosure/ventilation recommended
- Can still warp; needs tuning
Frequently Asked Questions
Is PC-PBT or ASA better for 3D printing?
PC-PBT is generally rated higher (Tier A) compared to ASA (Tier A). However, the best choice depends on your specific needs: PC-PBT is best for Very easy PC-class filament (~260C), low warping, good surface quality, while ASA is best for Excellent UV resistance (outdoors indefinitely), tough, matte surface.
What are the temperature differences between PC-PBT and ASA?
PC-PBT prints at 250-270°C nozzle / 80-100°C bed. ASA prints at 220-275°C nozzle / 90-110°C bed.
Do PC-PBT and ASA need an enclosure?
PC-PBT: recommended. ASA: recommended.
Which is more beginner-friendly: PC-PBT or ASA?
Neither is particularly beginner-friendly - both typically require an enclosure.