PETG Rainbow Filament – Gradient Color Transition, 1.75mm, 1kg

Multiple colors run sequentially along one continuous strand, so as the printer consumes filament the model shifts gradually from one color to the next. No multi-material hardware is involved — the transitions are built into the spool.

No. The transitions are built into the filament, so a standard single-nozzle printer produces the full multicolor effect. If you do run an AMS and want to combine it with other spools, see setting up Filazoo filament in your AMS or multi-material system.

Not necessarily — and that's part of the appeal. Color placement depends on where you start on the spool, model size, infill, wall thickness, and print direction, so each print lands slightly differently.

A small model may not consume enough filament to reach the next transition. Print a larger model, add walls or infill, or batch several objects on one plate to pull more color through. If you want to start nearer a particular color, changing filament mid-print covers advancing and purging safely.

Not precisely, on a standard continuous print. Where the colors land depends on your starting position on the spool, the transition length, model size, walls, infill, supports, and total filament consumed.

You can advance the filament before starting to begin closer to a preferred color, though that uses extra material — changing filament mid-print covers doing it cleanly.

Yes, for everyday functional and decorative parts. The gradient is purely visual — the material underneath is standard PETG, so design for the load, temperature, and environment the part will actually see. 5 functional prints for your desk shows the sort of work PETG handles well.

Start at 230–250°C. For PETG Matte HF, use 230–260°C. Nudge the temperature up if layer bonding is weak or you're printing faster; bring it down if you see stringing or excess gloss. A temperature tower settles it in one print — here's how to read one.

Use a heated bed at 70–90°C. A clean build surface plus a thin release layer on smooth PEI or glass gives reliable adhesion without bonding too strongly. If the first layer still misbehaves, work through our bed adhesion troubleshooting guide in order.

Dry PETG at 60–65°C for 6–8 hours as soon as you notice popping, bubbles, rough surfaces, or extra stringing. Use a filament dryer or a controlled oven that holds a stable low temperature — ovens, dry boxes, and dedicated dryers compared covers what each one costs and how well it works.

Almost always one of three things: absorbed moisture, too much nozzle heat, or untuned retraction and travel settings. Dry the spool first — how to dry filament at home covers the options — then work through retraction tuning explained before touching anything else.

No. PETG prints well in the open — just keep the printer out of strong drafts and use moderate cooling. Enclosures matter most for materials that shrink hard as they cool, which warping 101 explains in detail.

It works with most FDM/FFF printers that take 1.75mm filament, have a heated bed, and can hold the recommended nozzle temperature. Always follow your printer and build-plate guidance. Running an AMS or multi-material unit? See setting up Filazoo filament in your AMS.