Best AMOLEN Rainbow 3d Printing Filaments in 2026: 5 Picks

Quick picks

The best fit for you

• You want to test flexible TPU printing AMOLEN Transparent Multicolor Rainbow TPU (4 x 200g) This set includes four 200g spools of transparent rainbow TPU for experimentation.
• You seek luminous decorative prints with strong adhesion AMOLEN Glow Rainbow PLA 1.75mm 1KG The 1KG glow in the dark rainbow PLA offers UV-enhanced luminous effects.
• You prioritize surface shine and color variety AMOLEN Silk PLA Rainbow Filament The silk finish provides a reliable, glossy rainbow effect for FDM printers.
• You need flexible rainbow prints with high accuracy AMOLEN 1.75mm Transparent Rainbow 95A TPU (1kg) This 1.75mm 95A TPU delivers a glossy rainbow finish with dimensional accuracy.
• You prioritize surface texture over mechanical strength AMOLEN Wood PLA Rainbow 1KG The wood filled rainbow PLA Tigerwood delivers a distinct wood grain look.

Our 5 picks

1 Best overall

AMOLEN Transparent Multicolor Rainbow TPU (4 x 200g)

Best for: Testing flexible TPU printing

Color Effect

Rainbow (what this guide is about)

Material Type

TPU

Filament Diameter

1.75mm

Net Weight

200g x 4

Color Printing

Multi-Color

Features

High Speed

View on Amazon: AMOLEN Transparent Multicolor Rainbow TPU (4 x 200g) Affiliate link

This AMOLEN bundle includes four 200g spools of 1.75mm flexible TPU filament in a transparent rainbow finish. The smooth surface finish and multicolor effect make prints stand out. It supports high-speed printing and works with most FDM 3D printers. The sealed vacuum bags keep the filament dry. This set is ideal for testing flexible materials without buying a full kilogram roll.

Pros

• Includes four 200g spools for a total of 800g
• Transparent rainbow color effect with smooth finish
• Flexible TPU material resists warping and jamming
• Compatible with most FDM 3D printers

Cons

• Smaller total weight than standard 1kg rolls
• Requires dry storage to maintain flexibility
• No included drying box or accessories

Good fit if

• You want to test flexible TPU printing
• You need multiple rainbow colors for a project
• You prefer smaller spools for storage

Skip if

• You need a full 1kg roll per color
• You only print with rigid PLA
• You require pre-dried filament

Verdict: AMOLEN TPU Rainbow 200g x 4 offers a practical way to try flexible multicolor printing. It suits users who want to experiment with TPU properties before committing to larger spools.

2 Best budget

AMOLEN Glow Rainbow PLA 1.75mm 1KG

Best for: Luminous decorative prints with strong adhesion

Color Effect

Rainbow (what this guide is about)

Material Type

PLA

Filament Diameter

1.75mm

Net Weight

1KG

Dimensional Accuracy

+/- 0.02mm

Surface Finish

Glow in the Dark

View on Amazon: AMOLEN Glow Rainbow PLA 1.75mm 1KG Affiliate link

This is AMOLEN PLA filament designed for glow-in-the-dark effects with a rainbow gradient. The diameter is 1.75mm with a dimensional accuracy of +/- 0.02mm. It changes color every 5 meters using pink, purple, green, and blue hues. You can enhance the luminous effect by exposing prints to UV light for 30 minutes. It is suitable for makers wanting vibrant, luminous designs with strong bed adhesion.

Pros

• Glow-in-the-dark effect with rainbow color shifts every 5 meters
• Dimensional accuracy of +/- 0.02mm for smooth, non-clog printing
• Strong bed adhesion reduces warping and lifting risks
• UV exposure extends glowing duration for brighter results

Cons

• Requires UV light exposure to maximize luminous effect
• Prints only show full rainbow effect after using more than 5 meters
• Limited to PLA material which is less flexible than TPU

Good fit if

• You want vibrant, eye-catching colors for decorative prints
• You need reliable bed adhesion to prevent warping
• You are printing objects larger than 5 meters in length

Skip if

• You need flexible prints for functional parts
• You want immediate glow without UV exposure
• You require prints smaller than 5 meters to see full color effect

Verdict: AMOLEN Glow Rainbow PLA 1.75mm 1KG suits makers seeking luminous, colorful decorative prints with reliable adhesion. It is a practical option for projects where UV-enhanced glow and smooth printing are priorities.

3 Also great

AMOLEN Silk PLA Rainbow Filament

Best for: Shiny, multicolor FDM prints

Color Effect

Rainbow (what this guide is about)

Material Type

PLA

Filament Diameter

1.75mm

Net Weight

1kg

Dimensional Accuracy

+/- 0.02 mm

Surface Finish

Silk

View on Amazon: AMOLEN Silk PLA Rainbow Filament Affiliate link

This AMOLEN Silk PLA filament delivers a shiny, multicolor rainbow effect with fast color transitions. It features a 1.75 mm diameter and a precision tolerance of +/- 0.02 mm for smooth, consistent prints. The material offers a silky texture and glossy surface finish. It is designed for FDM printers and includes raw materials from the USA. You get a 1 kg spool suitable for arts, crafts, and DIY projects.

Pros

• Silky texture and glossy surface finish
• 1.75 mm diameter with +/- 0.02 mm tolerance
• Fast, random multicolor rainbow transitions
• Prints without jamming or warping

Cons

• Limited to FDM printing technology
• Single 1 kg spool size available
• No specific temperature range listed

Good fit if

• You want a shiny, professional-looking finish
• You need fast color changes in one filament
• You print small arts and crafts items

Skip if

• You require support for other printing technologies
• You need bulk 2 kg or larger spools
• You prefer matte or textured surface finishes

Verdict: AMOLEN Silk PLA Rainbow Filament provides a reliable, glossy rainbow effect for FDM printers. It suits makers who prioritize surface shine and color variety over matte textures or bulk volume.

4 Best high speed

AMOLEN 1.75mm Transparent Rainbow 95A TPU (1kg)

Best for: Flexible rainbow prints with high accuracy

Color Effect

Rainbow (what this guide is about)

Material Type

TPU

Filament Diameter

1.75mm

Net Weight

1kg

Dimensional Accuracy

+/- 0.02mm

Surface Finish

Glossy

View on Amazon: AMOLEN 1.75mm Transparent Rainbow 95A TPU (1kg) Affiliate link

This AMOLEN filament is a transparent rainbow TPU spool with a 95A shore hardness. It features a glossy smooth finish and maintains dimensional accuracy within +/- 0.02mm. The material stretches three times its original length, offering a balance of flexibility and durability. It is designed for FDM 3D printers using 1.75mm wire and supports high-speed printing for creative projects.

Pros

• 95A shore hardness for flexible prints
• Transparent rainbow color effect
• +/- 0.02mm dimensional accuracy
• Glossy smooth surface finish

Cons

• Requires 190-220℃ printing temperature
• Optional bed temperature up to 60℃
• No included drying instructions in specs

Good fit if

• You need flexible, durable parts
• You want a glossy rainbow finish
• You use 1.75mm FDM printers

Skip if

• You require rigid PLA prints
• You need glow-in-the-dark effects
• You prefer matte surface finishes

Verdict: AMOLEN Rainbow TPU 1.75mm 95A suits makers who need flexible, durable parts with a glossy rainbow finish. It fits users of 1.75mm FDM printers who value dimensional accuracy and high-speed printing capabilities.

5 Best premium

AMOLEN Wood PLA Rainbow 1KG

Best for: natural wood texture props

Color Effect

Rainbow (what this guide is about)

Material Type

Wood PLA

Filament Diameter

1.75mm

Net Weight

1KG

Dimensional Accuracy

±0.02mm

Surface Finish

Wood

View on Amazon: AMOLEN Wood PLA Rainbow 1KG Affiliate link

AMOLEN offers this 1KG spool of Wood PLA filament in a Tigerwood rainbow finish. It features a 1.75mm diameter with ±0.02mm precision for consistent extrusion. The material provides an authentic wood-like feel and subtle scent. It prints reliably between 175–190°C with a bed temperature of 30–66°C. You get a transparent spool in vacuum-sealed packaging. This option suits makers seeking natural aesthetics for cosplay or decor.

Pros

• Wood filled composite for natural texture
• 1.75mm ±0.02mm dimensional accuracy
• Transparent spool for material visibility
• Vacuum-sealed for moisture protection
• Stable melting and consistent extrusion

Cons

• Wood filled PLA is more brittle than standard PLA
• Nozzle wear risk from wood particles
• Limited to 175–190°C printing range

Good fit if

• You want a natural wood aesthetic
• You need precise dimensional control
• You are making cosplay props

Skip if

• You require high flexibility
• You need high strength parts
• You want standard PLA performance

Verdict: AMOLEN Wood PLA 1KG Rainbow Tigerwood delivers a distinct wood grain look for detailed models. You should choose this if you prioritize surface texture over mechanical strength.

Specifications side by side

Choosing the Right AMOLEN Rainbow Filament

1. Match Material to Function

   Select the base polymer based on your part's required flexibility. The AMOLEN Transparent Multicolor Rainbow TPU suits projects needing bendable, durable components. In contrast, the AMOLEN Silk PLA Rainbow Filament provides rigid structures with a glossy finish. Check the compatible material specification to ensure the filament aligns with your mechanical needs. Rigid PLA works for decorative items, while flexible TPU fits functional hinges or gaskets. Always verify the material type before purchasing to avoid print failures.

2. Check Diameter Compatibility

   Ensure your printer extruder supports the filament diameter. Most options here use 1.75mm, including the AMOLEN Glow Rainbow PLA and the AMOLEN 1.75mm Transparent Rainbow TPU. Verify this dimension in the specs to prevent feeding issues. Using the wrong diameter can damage your extruder gears or cause consistent jams. The TPU set uses smaller 200g spools, which may fit different spool holders. Confirm your printer accepts 1.75mm rods to ensure smooth loading and reliable extrusion during long prints.

3. Evaluate Surface Finish Needs

   Choose the finish that matches your aesthetic goals. The AMOLEN Silk PLA Rainbow Filament offers a shiny, metallic appearance ideal for display models. The AMOLEN Wood PLA Rainbow 1KG provides a natural wood grain texture for props. The TPU options feature a transparent or glossy finish. Decide if you want matte, silk, or wood-like textures. The finish affects how light reflects off your print. Select the option that complements your design intent without requiring post-processing for visual appeal.

4. Consider Special Features

   Look for unique properties like glow-in-the-dark capabilities. The AMOLEN Glow Rainbow PLA includes UV-enhanced luminous effects for night visibility. This feature is absent in standard PLA or TPU options. If you need visibility in low light, this specific filament is essential. Other options focus on flexibility or wood texture. Check the features list for additives or special treatments. These properties change how your print behaves and looks. Choose based on whether you need standard color shifting or enhanced visual effects.

5. Assess Spool Size and Weight

   Review the total weight and spool configuration. The top TPU pick includes four 200g spools, totaling 800g. Other options provide 1KG single spools. Smaller spools allow you to test flexible materials without committing to a large roll. Larger spools offer more material for big projects. The weight specs indicate the total package mass. Consider your storage space and print volume requirements. Smaller packs are better for experimentation, while larger packs suit high-volume production runs.

Frequently asked questions

See also

• best AMOLEN FDM 3d printing filaments
• best AMOLEN 1KG 3d printing filaments
• best 3d printers with resume printing
• best 3D massage chairs