Signal Red

Flexfill TPU 98A · TPU

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Color values and print settings

Hex: #9A2222
RGB: 154, 34, 34
HSL: 0°, 64%, 37%
CIELAB: 34.26, 48.62, 31.08
Nozzle: 220–240 °C
Bed: 50–60 °C

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 Fillamentum’s own guidance for this spool.

Where to buy

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Closest alternatives from other spools

Ranked by how close each one looks to #9A2222, measured perceptually. Useful when this color is out of stock or you print in a different material.

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