PVB vs TPU
Compare PVB and TPU filaments side-by-side so you can pick the right one for your 3D printing project.
PVB
SPPolyvinyl Butyral
Alcohol smoothing (isopropanol) can fuse layers and create a slick surface
TPU
SThermoplastic Polyurethane
Excellent layer adhesion; extremely impact resistant; highly durable
Detailed Comparison
Property
PVB
TPU
Tier Rating
Tier SPECIAL
Tier S
Family
PVB
Flexible
Nozzle Temp
190-220°C
200-240°C
Bed Temp
50-70°C
30-60°C
Enclosure
not needed
not needed
Cooling
Moderate cooling
Moderate cooling
Moisture Sensitivity
moderate
high
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
PVB Strengths
- Alcohol smoothing (isopropanol) can fuse layers and create a slick surface
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
PVB Caveats
- Alcohol vapor can fuse the spool itself (example: spool stuck together)
TPU Caveats
- Slow printing; retraction can cause jams (especially in Bowden setups)
- Stringing is common
- Very moisture sensitive; wet TPU prints poorly
Frequently Asked Questions
Is PVB or TPU better for 3D printing?
TPU is generally rated higher (Tier S) 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 TPU is best for Excellent layer adhesion; extremely impact resistant; highly durable.
What are the temperature differences between PVB and TPU?
PVB prints at 190-220°C nozzle / 50-70°C bed. TPU prints at 200-240°C nozzle / 30-60°C bed.
Do PVB and TPU need an enclosure?
PVB: not needed. TPU: not needed.
Which is more beginner-friendly: PVB or TPU?
Both PVB and TPU are beginner-friendly options.