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PLA Rainbow Filament – Gradient Color Transition, 1.75mm, 1kg
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📍 Your location: United States
Spring —Ships internationally
Estimated Sep 24 – Oct 6
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Bring natural color transitions to every creation with Filazoo PLA Rainbow Filament. Multiple colors change gradually along a single filament strand, producing unique multicolor prints without filament switching, painting, or a multicolor printer.
Unlike Silk Rainbow, standard PLA Rainbow provides a cleaner, more natural PLA surface with less reflective shine. It is ideal for articulated models, toys, decorations, vases, figurines, gifts, prototypes, and creative projects where flowing color is the main feature.
Key Features
- Multiple colors transition gradually along one continuous strand
- Creates multicolor models using a single nozzle
- No filament switching or painting required
- Natural standard-PLA surface appearance
- Easy to print with low warping
- Smooth and consistent extrusion
- Reliable feeding and neat winding
- Each print develops a unique color arrangement
- Six distinctive gradient palettes
- Suitable for beginners and experienced makers
Diameter:
1.75 ± 0.02 mm*
Net Weight:
1 kg per spool
Gross Weight:
Approximately 1.3 kg per spool*
Filament Length:
Approximately 330–340 m*
Care Tip:
Keep the filament sealed with fresh desiccant when it is not being used. Store it away from moisture, direct sunlight, and high temperatures.
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FAQ
Do I need a multicolor printer?
No. All the colors live in one continuous 1.75mm strand, so a compatible single-extruder printer produces the complete gradient. To combine it with other spools on a multi-material setup, see setting up Filazoo filament in your AMS.
How does PLA Rainbow change color?
The colors are manufactured sequentially along the strand, so the shift happens naturally as the printer draws material off the spool — the printer isn't selecting or mixing anything. Consumption drives the change, not time or height.
Can I control where each color appears?
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.
Will two copies of the same model have identical colors?
Not necessarily. If each print starts at a different point in the color sequence, the colors and transitions land differently. Print copies together in one job if you want them to match.
Why does my small model show only one color?
It probably isn't consuming enough filament to reach the next transition. Scale the model up, print several copies together, raise the wall count, or pick a design that uses more material. To start nearer a specific color, changing filament mid-print covers advancing and purging safely.
Do the colors change according to model height?
Not necessarily. Color progression follows filament consumption rather than height — wide layers, infill, walls, supports, and multiple objects on the plate all pull material faster and move the colors along more quickly relative to height. A thin tall vase changes color far faster than a wide solid base of the same height.
Can my slicer preview the final color arrangement?
Not accurately, unless the starting position and exact transition lengths are known. Your slicer will estimate filament consumption reliably, but final color placement still varies — what a calibration print tells you is a better use of a test print.
What is the difference between PLA Rainbow and PLA Silk Rainbow?
Finish. PLA Rainbow has the clean, conventional surface of standard PLA; PLA Silk Rainbow adds a reflective, glossy sheen on top of the same gradient. Choose standard Rainbow for a versatile matte-ish finish, Silk Rainbow when shine is the point — silk PLA explained covers what that finish does and doesn't do.
What is the difference between the six variants?
Each uses a different palette. Spring runs to fresh, nature-inspired colors; Summer is a brighter seasonal mix; Autumn favors warm tones; Winter uses cooler shades; Candy is vivid and playful; Macaron keeps to softer pastels. The swatches on this page show the exact shades in each — worth a look, since the palette is the whole difference between them.
Is PLA Rainbow suitable for beginners?
Yes. It prints much like conventional PLA, with low warping and undemanding settings, though a small temperature or flow calibration improves the result. Start with a calibration print, and see our filament guide for a first print if this is your first roll.
Is it suitable for functional parts?
For light-duty objects and prototypes, yes — but the reason to buy it is how it looks. For heavily loaded, impact-resistant, heat-resistant, or safety-critical parts, choose a functional material: PLA+ vs. PLA Basic covers the everyday step up, and PC vs. ABS vs. ASA vs. PETG the engineering end.
Can PLA Rainbow be sanded or painted?
You can, though sanding changes the surface and painting covers the gradient entirely — which removes the reason to use it. Post-processing is usually only worth it for a deliberately customized finish.
How can I tell whether it has absorbed moisture?
Popping sounds, bubbles, heavy stringing, inconsistent extrusion, or a rough surface all point to moisture. Dry it before printing again — the Printer Settings tab above lists the times, and how to dry filament at home compares ovens, dry boxes, and dedicated dryers.
Is it compatible with Bambu Lab AMS?
It uses the standard 1.75mm diameter that AMS and similar units expect, with the tolerance held tight enough for reliable automatic feeding. Our AMS and multi-material setup walkthrough covers getting spools recognized and feeding smoothly. If you need spool dimensions for a specific unit, get in touch before ordering.
Reviews
Customers praised this PLA filament for smooth printing, vibrant color transitions, and minimal stringing. "Prints like a dream" with excellent layer adhesion and clean finishes. Most noted transitions require larger models to show full color range. Ideal for decorative pieces, ornaments, and toys at 200-210C.
- 5 stars: 12 (86%)
- 4 stars: 2 (14%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
The filament itself prints well and the colors look nice, but the transition sections are longer than I anticipated, so smaller models sometimes only show one or two shades. Not a dealbreaker, just something to plan around if you want to see the full color range in a single print.
Grabbed the Winter set for a batch of ornaments and ended up really impressed. The cool color transitions fit the holiday theme perfectly and the prints came out with a nice smooth surface finish. No clogging or jamming through the whole roll.
This stuff is great. Prints smoothly, the color transitions look fantastic, and it's surprisingly strong for a PLA. Almost no stringing even without heavy retraction tuning. Will definitely be ordering more colors from this line.
Works awesome, looks great. The transitions between shades are smooth and it printed cleanly on the first try with no calibration headaches.
Loaded it straight in and it printed with zero issues from the first layer to the last. The color transitions came out clean on my vase prints and there was no stringing to clean up afterward. Really happy with how this turned out.
Ordered the Spring color set for a set of planters I'm printing for my patio. The pastel-to-bright transitions came out even better than I expected, and the layer lines are barely visible thanks to how smooth this prints. No warping and no stringing on my Prusa MK4.
Bought the Candy color set to print some toys for my kids and they loved watching the colors change as each piece finished. Printed cleanly at 200C with no adhesion problems on my Creality K1. Great option if you want variety without swapping spools constantly.
No issues at all with this roll. Fast shipping and the colors came out looking great on my prints, with clean transitions and no visible banding. Sticking with this brand for my next multicolor project.
I picked up this 1kg roll mainly for decorative prints and a few larger display pieces, and it did not disappoint. Right out of the packaging the color quality looked great, and the spool was sealed well so there were no moisture issues when I loaded it in. Printing was smooth around 205-210C with a 55C bed, no popping or stringing at all. The color changes are gradual, so smaller prints may only show one or two shades while bigger vases and sculptures really let the full transition shine. Great filament for anyone who wants a print to stand out without needing multi-color hardware.
This is currently one of my go-to rolls for test prints on my Bambu A1. I dried it for a few hours before use just to be safe, and it printed clean with no brittleness afterward. I ran a quick temperature tower and settled around 205C with standard cooling, and the finish came out smooth with good layer adhesion. My only minor gripe is that the color transitions take more filament than I expected to fully cycle through, so plan your model size accordingly if you want to see the whole range. Overall a solid, dependable rainbow PLA for the price.
Needed another roll of test filament for my AMS and grabbed this one. It came vacuum sealed with a small desiccant pack, and after a short dry in my storage box it loaded without any jams. The spool itself has a good hole pattern so you can see how much is left at a glance. Print quality was excellent with no adhesion issues on either the textured or smooth plate, and the color changes are spaced out nicely depending on how big your model is. Will definitely be ordering more.
Great price and fast delivery, especially compared to most of the overseas filament orders I've dealt with in the past. The spool arrived well packaged and the color transition on my first print looked exactly like the listing photos. Customer service also reached out to confirm my order details, which I appreciated. Would definitely recommend if you want dependable rainbow filament without a long wait.
Haven't had a chance to print with it yet, but the spool arrived well packaged and the colors look exactly as pictured. Will update this review once I've run a full print.
Prints good, I like it. The color changes are a nice surprise every time a new section of the model comes up, and it hasn't given me any trouble so far.
What's in the Box
* The color and texture of the filament are subject to the physical product. Images are for reference only.