XVICO is a Chinese brand that offers a variety of products and services, including 3D printers, parts, and a 3D printing cloud platform. Its rainbow filament touts gradient color changes every 20 to 30 meters or so; it cycles through seven different hues to produce a vibrant rainbow.

The filament has a 0.02 mm tolerance, which is surprisingly good for such an affordable price. A confirmed customer commented that this filament yields a glossy finish, but isn’t as shiny as silk filaments. Another reviewer claims that this filament doesn’t have frequent enough color changes, and most prints are still single-colored.

• Average price/kg: ~$28
• Color change distance: 20-30 m
• Size: 1.75 mm
• Tolerance: ±0.02 mm
• Color option: Rainbow
• Nozzle temperature: 180-240 °C
• Bed temperature: 0-80 °C
• Print speed: 50-100 mm/s

XVICO Multicolor PLA Filament

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Flashforge is a popular manufacturer of 3D printers, such as the Flashforge Creator Pro, and it also manufactures its own brand of filament. Flashforge’s PLA rainbow filament comes in both a regular and a silk version, with the latter yielding shinier prints.

Besides the shine, though, the two variations of rainbow PLA also vary in their colors. While the regular PLA version alters between red, orange, blue, and green, the silk rainbow PLA spool has more gradual color changes. In fact, some reviewers have mentioned that the color changes happen over too long a span of time.

Still, both filaments excel when it comes to their diameter accuracy, with a tolerance of just 0.02 mm. Additionally, there are many customer reviews mentioning that the Flashforge filament, including both rainbow options, prints very well!

• Average price/kg: ~$25
• Color change distance: 30-40 m
• Size: 1.75 mm
• Tolerance: ±0.02 mm
• Color options: Rainbow, silk rainbow
• Nozzle temperature: 190-220 °C
• Bed temperature: 25-60 °C
• Print speed: 40-200 mm/s

Flashforge Rainbow PLA

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Stronghero3D is a well-known brand in the field of 3D printing filaments and accessories, and their rainbow PLA is no exception.

In this case, it’s not just the one rainbow gradient, but rather a whole family of options. Pictured above is Galaxy Starly with purples and blues, while Galaxy Starly V2 has a similar finish but with shades of gold, red, and purple. If you’re looking for a greater scheme, Silk Rainbow Ex (or Splendid) includes changes between reds, yellows, and greens. Silk Rainbow Ex31 has pastel colors, whereas Silk Rainbow Ex51 is comprised of brighter options.

It’s worth noting that the color change distance will depend on the specific choice, as they all have slight variations. Additionally, users have mentioned needing to tweak some settings, which shouldn’t come as too much of a surprise. But with results like the one seen above, the time spent trying to figure out what works best is well worth it.

• Average price/kg: ~$28
• Color change distance: Depends on filament
• Size: 1.75 mm
• Tolerance: ±0.05 mm
• Color options: Copper-brass-bronze, Galaxy Starly, Galaxy Starly V2, Ex (Splendid), Ex31, Ex51
• Nozzle temperature: 195-215 °C
• Bed temperature: 50-70 °C
• Print speed: 15-35 mm/s

Stronghero3D Rainbow PLA

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Sunlu is a popular 3D printing company that makes a wide array of filaments and printer parts. Changing through the full spectrum of the rainbow every 15 meters or so, its multicolor PLA filaments are truly a rainbow. The first color on the spool, however, is random.

According to the manufacturer, the filament doesn’t bubble, clog, or jam. Additionally, it has a great diameter tolerance of just 0.02 mm. There are options for standard PLA, silk PLA, and silk PLA+.

An Amazon reviewer found that the filament sticks to the bed very well, and a review on Sunlu said the filament takes a long time between color changes, but it looks great for large prints.

• Average price/kg: ~$30
• Color change distance: 15-18 m
• Size: 1.75 mm
• Tolerance: ±0.02 mm
• Color options: Rainbow, silk rainbow
• Nozzle temperature: 190-230 °C
• Bed temperature: 0-80 °C
• Print speed: 50-100 mm/s (30-60 mm/s for PLA+)

Sunlu PLA Rainbow Filament

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In addition to 3D printers, accessories, and resins, Eryone makes a variety of PLA, PETG, and TPU filaments. Their multicolor filaments include different PLA rainbow options, including traditional bright rainbows and more muted metal gradients.

As these filaments are silk PLA, they yield a gleaming and partially translucent finish. The starting color on each spool is random, and Eryone states that the filament is non-toxic and made from 100% organic material.

• Average price/kg: $27-$30
• Color change distance: Depends on filament
• Size: 1.75 mm
• Tolerance: ±0.05 mm
• Color options: Lagoon, steampunk, candy, forest, metal luster silk, universe
• Nozzle temperature: 190-220 °C
• Bed temperature: 55-70 °C
• Print speed: 30-60 mm/s

Eryone Silk Mini Rainbow PLA Filament

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eSun’s rainbow PLA is a silk filament that yields a shiny and glossy luster. Changing from green to yellow to brown in gradient color shifts, the filament is more tricolor than a true rainbow.

According to the manufacturer, their filament is very tough and has good mechanical properties. It’s also non-toxic, environmentally friendly, and has little odor. During printing, eSun says the filament doesn’t tangle or clog, and it shouldn’t warp on the print bed.

• Average price/kg: ~$30
• Color change distance: Not specified
• Size: 1.75 mm
• Tolerance: ±0.05 mm
• Color option: Green-yellow-brown
• Nozzle temperature: 185-220 °C
• Bed temperature: 45-60 °C
• Print speed: 40-100 mm/s

eSun eSilk Rainbow PLA

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Amolen is a neat brand of filament that offers many specialty materials, such as glow-in-the-dark and color-changing filaments. In addition to its traditional rainbow options, with its Sparkle & Shiny range Amolen offers several additional gradient and rainbow options, all of which are shiny and lustrous.

Amolen’s filaments have a great tolerance of just 0.03 mm. According to the manufacturer, the raw plastic used to create the filament is high quality, eco-friendly, and sourced from the US. Amolen also points out that the filament doesn’t bubble, jam, or warp when printed.

• Average price/kg: ~$36
• Color change distance: 5-15 m
• Size: 1.75 mm
• Tolerance: ±0.03 mm
• Color options: Pink-blue-yellow, metal rainbow, blue-pink-green, blue-yellow-purple, Sparkle & Shiny range
• Nozzle temperature: 190-220 °C
• Bed temperature: 0-50 °C
• Print speed: 30-60 mm/s

Amolen Rainbow PLA

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Locyfens is a perhaps lesser-known filament manufacturer that sells a rainbow option. Actually, they sell a range of gradient and rainbow PLA filaments, ranging from different shades of blue to a full five-color rainbow. All the options offer terrific visual appeal for prints, but this brand of filament is a bit on the pricier end of the spectrum.

Still, you might find it worth it for the price considering some of the features of the filament, like its 0.02-mm diameter tolerance. Additionally, according to the manufacturer, the color changes are pretty fast to allow for more color variation within prints. And on this note, there are many positive reviews about the colors and color changes.

• Average price/kg: ~$36
• Color change distance: 10 m
• Size: 1.75 mm
• Tolerance: ±0.02 mm
• Color option: Rainbow
• Nozzle temperature: 195-220 °C
• Bed temperature: 40-60 °C
• Print speed: 30-60 mm/s

Locyfens Rainbow PLA

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TTYT3D is a brand that produces five types of rainbow filament in shiny silk PLA. One rainbow option boasts a particularly fast color gradient change that’s drawn praise from makers on forums such as Reddit.

According to the manufacturer, the color of these filaments changes every 5-10 meters, with the fast-change filament reducing this to 3-5 meters. In addition to its color-change characteristics, the manufacturer mentions that this filament is eco-friendly and compatible with most FDM printers. It shouldn’t clog your printer’s nozzle nor warp on the print bed.

• Average price/kg: $30-$40
• Color change distance: 5-10 meters
• Size: 1.75 mm
• Tolerance: ±0.05 mm
• Color options: Clear, fast shiny silk color gradient, shiny silk, silk orange-red, silk blue-purple, silk yellow-green, glow-in-the-dark
• Nozzle temperature: 190-230 °C
• Bed temperature: 0-80 °C
• Print speed: Not specified

TTYT3D Silk PLA Fast Color Gradient Change Rainbow Filament

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UniCoFil is a German company that specializes in making filament, and they offer a wide variety of multicolor filaments, including 2 tricolor, 4 rainbow, and 10 bicolor options. Their rainbow filaments come in both normal and silk PLA, and the manufacturer says each spool cycles through the full rainbow 16 times, with color changes every three meters.

All of UniCoFil’s filaments come in both 1.75-mm and 2.85-mm diameters. These filaments have a 0.05-mm tolerance, and models printed in the material can retain their shape up to 60 °C.

• Average price/kg: $20-$30
• Color change distance: Various
• Size: 1.75 mm, 2.85 mm
• Tolerance: ±0.05 mm
• Color options: Rainbow, rainbow pastel, silk rainbow pastel, rainbow soft
• Nozzle temperature: 200-230 °C
• Bed temperature: 40-60 °C
• Print speed: Not specified

Eryone is another brand committed to delivering reliable and innovative 3D printing products. This allows for smooth and controlled color changes, enabling you to create prints with stunning color gradients and transitions.

It’s not unsurprising to read from a maker that smaller models, like fidget toys, won’t show the biggest changes in color, so perhaps it’s best to opt for taller or longer designs to have really striking prints.

• Average price/kg: ~$30
• Color change distance: Not specified
• Size: 1.75 mm
• Tolerance: ±0.03 mm
• Color option: Rainbow
• Nozzle temperature: 190-220 °C
• Bed temperature: 55-70 °C
• Print speed: 30-100 mm/s

Eryone Glow-in-the-Dark Rainbow PLA

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Tronxy focuses on offering affordable 3D printing solutions without compromising on quality. This filament features a multicolor rainbow effect with colors including green, purple, orange, yellow, and pink, providing a vibrant and visually appealing aesthetic to your prints.

But this isn’t a “regular” rainbow filament – it stands out because of its glow-in-the-dark characteristic, which adds an extra element of excitement and creativity to your designs by having them, as expected, glow in the dark.

While a reviewer commented that color vibrancy isn’t consistent in all spools, they were still satisfied with the glow-in-the-dark aspect, and another suggested lowering the temperature to decrease stringing.

• Average price/kg: ~$36
• Color change distance: ~5 m
• Size: 1.75 mm
• Tolerance: ±0.03 mm
• Color option: Rainbow
• Nozzle temperature: 190-220 °C
• Bed temperature: 60-65 °C
• Print speed: 45-50 mm/s

Tronxy Glow-in-the-Dark Rainbow PLA

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Zi-Rui’s rainbow PETG provides an affordable option for users looking to explore the world of rainbow-colored 3D prints. Its significant dimensional accuracy and cost-effective price make it an attractive choice for hobbyists and professionals alike. Whether you’re creating vibrant decorations, artistic models, or functional prototypes, Zi-Rui’s rainbow PETG ensures high-quality prints with a captivating range of rainbow colors.

That said, a reviewer, while commending the quality, warns about needing to be patient and dialing in the temperature settings until the exact ones are found.

• Average price/kg: ~$30
• Color change distance: Not specified
• Size: 1.75 mm
• Tolerance: ±0.03 mm
• Color option: Rainbow
• Nozzle temperature: 205-235 °C
• Bed temperature: 75 °C
• Print speed: 50 mm/s

Zi-Rui Rainbow PETG

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Stronghero3D appears twice on this list, and for good reason. They have gained a reputation for producing high-quality and reliable products that cater to the needs of 3D printing enthusiasts and professionals alike. One of the notable products from Stronghero3D is their Silk Rainbow PETG. This filament is designed to provide a unique and visually appealing finish to 3D prints with its silk-like texture and vibrant rainbow colors.

While Amazon reviewers point out that the color transitions are a bit on the longer side and that the tones are a bit more muted than advertised, some makers have shared prints that are just stunning.

One other notable feature of the Stronghero3D Silk Rainbow PETG is its precise dimensional accuracy. With a tolerance of ±0.05 mm, this filament ensures consistent and reliable printing results, minimizing the chances of filament clogs or other printing issues.

• Average price/kg: ~$25
• Color change distance: Not specified
• Size: 1.75 mm
• Tolerance: ±0.05 mm
• Color options: Translucent rainbow, silk rainbow
• Nozzle temperature: 220-230 °C
• Bed temperature: 70 °C
• Print speed: 23-38 mm/s

StrongHero3D Rainbow PETG

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Amolen is a reputable brand known for producing high-quality filaments with unique color options. The rainbow PETG is no exception, and it’s renowned for its vibrant and eye-catching rainbow color options. With a tolerance of ±0.03 mm, it ensures consistent and reliable prints, minimizing the risk of filament jams or other printing issues.

A commenter from Amazon mentioned that it prints very smoothly and cleanly, yielding strong, resilient models, although the colors might be more muted than expected.

• Average price/kg: ~$29
• Color change distance: Not specified
• Size: 1.75 mm
• Tolerance: ±0.03 mm
• Color options: Rainbow, translucent rainbow
• Nozzle temperature: 220-230 °C
• Bed temperature: 50-70 °C
• Print speed: 25-40 mm/s

Amolen Rainbow PETG

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IEMAI is another prominent brand in the 3D printing industry, specializing in the production of high-quality filaments, which can be seen in its ±0.02-mm tolerance. IEMAI’s rainbow PETG is a premium 3D printing material that offers exceptional quality and stunning rainbow color options.

While one reviewer suggested spray for better bed adhesion, another commented that there was no need for it. There may be differing opinions on that, although multiple comments do highlight the vibrancy of the colors.

• Average price/kg: ~$29
• Color change distance: Not specified
• Size: 1.75 mm
• Tolerance: ±0.02 mm
• Color option: Rainbow
• Nozzle temperature: 220-240 °C
• Bed temperature: 60-90 °C
• Print speed: Not specified

IEMAI Rainbow PETG

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Another popular brand of 3D printing filament is SainSmart, and its rainbow PETG is a high-quality 3D printing material allows you to create stunning and colorful prints.

According to the manufacturer, when it comes to print speed, SainSmart recommends a range of 20 mm/s. However, the actual print speed can be adjusted based on the complexity of the design, desired print quality, and the capabilities of your 3D printer. With an average price of ~$30 per kilogram, this filament provides a balance between affordability and performance, making it a popular choice among 3D printing enthusiasts.

It should be noted that, on the scale of colors that are afforded by rainbow filaments in general, this one sets itself apart by not including blues or purples – instead, as seen above, it shows shades of yellow, red, green, and colors in between. While this may not be appealing to some makers, the material’s somewhat transparent quality does make it worthy of consideration.

• Average price/kg: ~$30
• Color change distance: Not specified
• Size: 1.75 mm
• Tolerance: ±0.02 mm
• Color option: Translucent rainbow
• Nozzle temperature: 220-250 °C
• Bed temperature: 60-80 °C
• Print speed: 20 mm/s

SainSmart Rainbow PETG

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