Fillamentum FlexFill 98A vs TPU

Compare Fillamentum FlexFill 98A and TPU filaments side-by-side so you can pick the right one for your 3D printing project.

Fillamentum FlexFill 98A vs TPU: Fillamentum FlexFill 98A is known for excellent layer adhesion, while TPU is known for excellent layer adhesion. Both have no enclosure requirements; Fillamentum FlexFill 98A is less moisture-sensitive; Fillamentum FlexFill 98A prints at higher nozzle temperatures (240°C vs 200-240°C). Choose Fillamentum FlexFill 98A for excellent layer adhesion, or TPU for excellent layer adhesion.

Key differences at a glance

Property
Fillamentum FlexFill 98A
TPU
Nozzle temp
240°C
200-240°C
Bed temp
50°C
30-60°C
Enclosure needed
No
No
Ease of printing
Easy
Easy
Moisture sensitivity
low
high

Fillamentum FlexFill 98A

-

Excellent layer adhesion; extremely impact resistant; highly durable

TPU

S

Thermoplastic Polyurethane

Excellent layer adhesion; extremely impact resistant; highly durable

Detailed Comparison

Property
Fillamentum FlexFill 98A
TPU
Tier Rating
Tier null
Tier S
Family
Flexible
Flexible
Nozzle Temp
240°C
200-240°C
Bed Temp
50°C
30-60°C
Enclosure
not needed
not needed
Cooling
Moderate cooling
Moisture Sensitivity
low
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

Fillamentum FlexFill 98A Strengths

  • Excellent layer adhesion; extremely impact resistant; highly durable
  • Great for combat robots, tactical/rough-use parts
  • Rubber-like parts (gaskets, grips, bumpers, wheels)

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

Fillamentum FlexFill 98A Caveats

  • Slow printing; retraction can cause jams (especially in Bowden setups)
  • Stringing is common
  • Very moisture sensitive; wet TPU prints poorly

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

What is the difference between Fillamentum FlexFill 98A and TPU?
Fillamentum FlexFill 98A prints at 240°C nozzle / 50°C bed (No enclosure, low moisture sensitivity). TPU prints at 200-240°C nozzle / 30-60°C bed (No enclosure, high moisture sensitivity).
Is Fillamentum FlexFill 98A or TPU stronger?
Our dataset does not include comparable tensile strength values for both. Qualitatively, Fillamentum FlexFill 98A is suited to excellent layer adhesion, while TPU is suited to excellent layer adhesion.
Which prints at a higher temperature, Fillamentum FlexFill 98A or TPU?
Fillamentum FlexFill 98A prints at a higher temperature (240°C nozzle vs 200-240°C for TPU).
Is Fillamentum FlexFill 98A or TPU better for beginners?
Fillamentum FlexFill 98A is better for beginners: enclosure is no and moisture sensitivity is low, vs no enclosure and high moisture for TPU.
Should I use Fillamentum FlexFill 98A or TPU for flexible parts?
For flexible parts, Fillamentum FlexFill 98A is usually the better fit (Excellent layer adhesion). Choose TPU instead when excellent layer adhesion.

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