SUNLU Rainbow Filament — Rainbow PLA, Specs & Price

Name: SUNLU Rainbow Filament (PLA)
Brand: SUNLU

Specifications

Nozzle temperature190–220 °C

Bed temperature45–60 °C

Print speed60–100 mm/s

Density1.24 g/cm³

Description

SUNLU Rainbow Filament is a PLA filament with a gradual color transition: the shade shifts every 8 meters of strand, so the rainbow effect appears right on your finished model without swapping spools. The line is great for decor, toys, and vases — it prints as easily as regular PLA but delivers a bright multicolor result.

Print Settings

Nozzle temperature: 190–220 °C
Bed temperature: 45–60 °C
Print speed: 60 mm/s recommended, up to 100 mm/s
Diameter: 1.75 mm, tolerance ±0.02 mm
Color changes every 8 meters for a smooth rainbow gradient

No enclosure or hardened nozzle needed — this is plain non-abrasive PLA. To make the color shift more visible, print large models with thin walls or use vase mode.

The filament is neatly wound with no overlaps and ships in vacuum packaging with desiccant, which reduces the risk of tangles and nozzle clogs. Rainbow PLA runs on any FDM printer with a heated bed — from the Ender 3 to the Bambu Lab A1 — and needs no special tuning.