Skip to content
FilamentSelect
Shortlist

Approximate screen color · source authority unverified

Treat this hex as approximate until it is checked against a physical sample.

SMART MATERIALS 3D

FLEX 93A Ruby

TPU

Find colors like this
Color values and print settings
Hex
#E72F1D
RGB
231, 47, 29
HSL
5°, 81%, 51%
CIELAB
50.82, 67.59, 54.46
Diameter
1.75 mm

Printing this material

  • Keep dry — Absorbs moisture from the air, which prints as stringing, popping and weak layers. Filament that has sat out usually needs drying before use.
  • Flexible — Soft enough to buckle instead of feeding. Direct-drive extruders handle it; long Bowden paths often will not.

True of TPU generally. Follow SMART MATERIALS 3D’s own guidance for this spool.

Where to buy

No purchase source indexed yet. That is a gap in our retailer coverage rather than a judgement about the filament — it may well be in stock somewhere we have not indexed.

Closest alternatives from other spools

Ranked by how close each one looks to #E72F1D, measured perceptually. Useful when this color is out of stock or you print in a different material.

Other colors in TPU

See everything close to #E72F1D →