FilamenteSUN

eSUN TPU-LW — Lightweight Foaming Flexible Filament

TPU · Standard

Colors

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Specifications

Nozzle temperature220–250 °C
Bed temperature30–50 °C
Print speed25–40 mm/s
Drying before printingYes
Density0.9 g/cm³

Description

eSUN TPU-LW is a flexible TPU that foams as it prints, giving lightweight, springy parts. It pairs TPU's elasticity with low weight: heated, its density drops, so the same spool yields noticeably more volume. A favorite of RC plane builders for cushioning parts.

Print Settings

  • Nozzle temperature: 220–250 °C (hotter = more foaming)
  • Bed temperature: 30–50 °C
  • Print speed: 25–40 mm/s (low)
  • Reduce flow to compensate for foaming
  • Diameter: 1.75 mm, 0.75 kg spool

Great for lightweight cushioning and damping parts, RC gear and model planes where you need both flexibility and low weight. Prints on open-frame machines, but it takes patience.

FAQ

When heated the material foams and expands. If you don't cut flow the part over-extrudes. Find the exact value with a temperature tower on your own printer.