SUNLU TPU 90A/95A — Specs, Print Settings, Price

Name: SUNLU TPU 90A/95A — Flexible Filament
Brand: SUNLU

Specifications

Nozzle temperature190–240 °C

Bed temperature50–60 °C

Print speed50–120 mm/s

Drying before printingYes

Density1.21 g/cm³

Description

SUNLU TPU is a flexible filament available in two Shore A hardness grades: 90A (softer, springier — for phone cases, soles, dampers) and 95A (slightly firmer, holds its shape — for handles, seals, bushings). The line stands out for high elasticity, abrasion resistance, and a 99.9% antibacterial, mold-proof surface. With elongation at break up to 1063% on the 95A grade, parts bend and stretch without snapping.

Print Settings

Nozzle temperature: 190–240 °C (95A: 190–230 °C, 90A: 220–240 °C)
Bed temperature: 50–60 °C
Print speed: 50–120 mm/s for 95A, up to 40 mm/s for the softer 90A
Diameter: 1.75 mm with ±0.03 mm tolerance
Lower retraction and run cooling — flexible filament tends to string

Flexible filament prints best on a direct-drive extruder; on a Bowden setup it can buckle and coil up in the tube. Slow it down and reduce retraction. Dry the spool at 55 °C for about 8 hours before printing — TPU is hygroscopic.

The line suits phone cases, vibration dampers, straps, seals, RC tires, and toys. It prints on most FDM machines without an enclosure or a hardened nozzle; the 90A grade needs slow, careful feeding, while 95A is more forgiving and a good starting point for anyone new to flexibles.