SUNLU Rainbow PLA 1.75mm Alternatives: 6 Similar Picks Compared

Comparing Rainbow PLA Alternatives

YOOPAI Rainbow Silk PLA 1.75mm 250g

YOOPAI Rainbow Silk PLA 1.75mm 250g differs from the SUNLU original by offering a silk finish rather than a pearly surface. This glossy sheen makes it better for decorative prints where visual impact matters more than structural precision. The bundle includes smaller 250g spools, which you may find easier to handle for small projects. However, the SUNLU version provides tighter dimensional accuracy at ±0.02mm, ensuring more reliable extrusion. You should pick this YOOPAI option if you prioritize aesthetic variety and a shiny look over the strict tolerances and standard pearly finish of the SUNLU Rainbow PLA.

YOOPAI Silk PLA+ 1.75mm 8x250g Bundle

YOOPAI Silk PLA+ 1.75mm 8x250g Bundle distinguishes itself with a PLA+ material composition, which typically offers greater durability and impact resistance compared to standard PLA. It features a silk finish and a large quantity of eight spools, making it suitable for extensive decorative projects. The SUNLU original uses standard PLA with a pearly finish and focuses on consistent feeding and tight tolerances. While the YOOPAI option provides more material and enhanced toughness, it may lack the specific pearly aesthetic and proven reliability of the SUNLU Rainbow PLA. Choose this bundle if you need bulk quantity and extra strength for your multi-colored prints.

FLASHFORGE 1.75mm Rapid Rainbow Candy PLA

FLASHFORGE 1.75mm Rapid Rainbow Candy PLA is designed for high-speed printing, supporting speeds up to 500mm/s. This is a significant advantage over the SUNLU original, which recommends a maximum print speed of 60 mm/s. Both filaments maintain a 1.75mm diameter with ±0.02mm accuracy, ensuring consistent layer adhesion. The FLASHFORGE option allows for rapid production runs without sacrificing precision, making it ideal for users who need to print quickly. If you require fast output and your printer supports high speeds, this FLASHFORGE filament is a superior choice. Otherwise, stick with the SUNLU version for standard speed applications and reliable pearly results.

AMOLEN Matte PLA 1.75mm Rainbow 4-Pack

AMOLEN Matte PLA 1.75mm Rainbow 4-Pack offers a matte finish that effectively hides layer lines, unlike the pearly surface of the SUNLU original. This four-spool bundle provides ample material for detailed projects where a non-reflective surface is preferred. The SUNLU version delivers a smooth, pearly touch that highlights surface details rather than concealing them. Both options maintain the 1.75mm diameter and rainbow color effects. You should choose the AMOLEN matte option if you want to minimize the visibility of print layers and prefer a subdued aesthetic. The SUNLU Rainbow PLA remains the better choice if you desire a glossy, unique finish that stands out visually.

SUNLU 1.75mm Rainbow PLA Filament 1KG

SUNLU 1.75mm Rainbow PLA Filament 1KG shares the same brand and material type as the original but comes in a 1KG spool size. This standard spool size offers consistent diameter and smooth color gradients similar to the original. The key difference lies in the quantity and spool format, which may affect feeding reliability depending on your printer. The original version is noted for its vacuum packing and rigorous drying process to prevent moisture absorption. If you prefer standard spool sizes and reliable feeding without the specific packaging benefits of the original, this 1KG version is a practical alternative. It maintains the same pearly finish and rainbow color transitions for decorative prints.

AMOLEN Glow PLA Bundle 1.75mm

AMOLEN Glow PLA Bundle 1.75mm is a specialized option designed for creating glowing models, featuring luminescent properties that the SUNLU original lacks. This bundle includes spools that glow in the dark, offering a unique novelty for your prints. The SUNLU Rainbow PLA focuses on vibrant, multi-colored results with a pearly finish and tight tolerances for standard FDM printing. While the AMOLEN option provides an eye-catching glow effect, it may not offer the same level of durability or standard color variety as the SUNLU filament. Choose this AMOLEN bundle if you want to create models that emit light. For standard multi-colored prints with reliable extrusion and a pearly surface, the SUNLU Rainbow PLA remains the better choice.

Quick picks

Our 7 picks

1 Best overall

SUNLU Rainbow PLA 1.75mm

Best for: Vibrant multi-colored prints with tight tolerances

Material Type

PLA

Filament Diameter

1.75mm

Net Weight

1kg

Max Print Speed

60mm/s

Dimensional Accuracy

±0.02mm

Surface Finish

Pearlescent

View on Amazon: SUNLU Rainbow PLA 1.75mm Affiliate link

This SUNLU PLA filament features a pearly rainbow finish with color transitions every 8 meters. It maintains a tight dimensional accuracy of ±0.02mm for consistent extrusion. The material supports print speeds up to 60 mm/s and requires a nozzle temperature of 200-210°C. You get vacuum-sealed packaging to prevent moisture absorption. This option suits users who want vibrant, multi-colored prints with reliable layer adhesion on most FDM printers.

Pros

• Color changes every 8 meters for rapid variation
• Dimensional accuracy of ±0.02mm ensures consistency
• Pearly surface finish for unique visual appeal
• Vacuum-sealed packaging includes desiccant for dryness

Cons

• Maximum recommended print speed is only 60 mm/s
• Requires higher nozzle temperature of 200-210°C
• First color in the spool is random

Good fit if

• You want vibrant, multi-colored prints with frequent color shifts
• You prioritize tight dimensional tolerance for consistent extrusion
• You need reliable moisture protection via vacuum sealing

Skip if

• You require high-speed printing above 60 mm/s
• You prefer a matte or glossy finish over pearly
• You want to control the starting color sequence

Verdict: SUNLU Rainbow PLA 1.75mm Filament delivers rapid color transitions and tight tolerances for consistent prints. It fits users seeking vibrant, multi-colored results with reliable extrusion on standard FDM printers.

2 Best beginners

YOOPAI Rainbow Silk PLA 1.75mm 250g

Best for: decorative prints and color experimentation

Material Type

PLA

Filament Diameter

1.75mm

Net Weight

250g

Dimensional Accuracy

±0.02mm

Surface Finish

Silk

Color Printing

Multi-Color

View on Amazon: YOOPAI Rainbow Silk PLA 1.75mm 250g Affiliate link

This bundle offers four 250g spools of 1.75mm PLA filament with a silk finish and rainbow color transitions. The consistent 1.75mm ±0.02mm diameter ensures steady extrusion and reliable feeding for most FDM printers. You get practical amounts of color for small projects or tests without storing large 1kg spools. The glossy texture highlights decorative details, making it ideal for vases or display pieces.

Pros

• Silk finish with glossy rainbow color transitions
• Consistent 1.75mm ±0.02mm diameter for steady extrusion
• Precision winding reduces snags and interruptions
• Multiple 250g spools allow for varied color usage
• Fits most 1.75mm FDM printers with standard holders

Cons

• Smaller 250g spools require more frequent reloading than 1kg spools
• Requires a specific adapter for Bambu Lab AMS systems
• Limited to PLA material, restricting high-heat applications

Good fit if

• You want to experiment with multiple colors without buying large spools
• You print decorative items that benefit from a glossy silk finish
• You need reliable feeding for small to medium-sized prints

Skip if

• You require high-temperature resistance beyond PLA capabilities
• You prefer large 1kg spools to minimize reloading
• You use a Bambu Lab AMS without a compatible adapter

Verdict: YOOPAI Rainbow Silk PLA 1.75mm 250g Bundle suits makers who prioritize aesthetic finishes and color variety for decorative prints. It is a practical option for small projects where reloading frequency is less of a concern than visual impact.

3 Best premium

YOOPAI Silk PLA+ 1.75mm 8x250g Bundle

Best for: durable, glossy multi-color decorative prints

Material Type

PLA+

Filament Diameter

1.75mm

Net Weight

250gx8

Dimensional Accuracy

±0.02mm

Surface Finish

Silk

Color Printing

Multi-Color

View on Amazon: YOOPAI Silk PLA+ 1.75mm 8x250g Bundle Affiliate link

This bundle offers eight 250g spools of 1.75mm silk PLA+ filament. The material features a silky, glossy finish with vibrant rainbow color transitions every eight meters. Dimensional accuracy is rated at ±0.02mm for consistent feeding. The upgraded PLA+ composition provides better impact resistance and flexibility than standard PLA. It suits users seeking durable, decorative prints with a polished look.

Pros

• PLA+ material offers improved impact resistance and flexibility
• Silky, glossy surface finish requires no post-processing
• ±0.02mm dimensional accuracy ensures stable feeding
• Eight 250g spools allow for multi-color experimentation

Cons

• Small 250g spools may require frequent reloading
• Higher weight per unit volume compared to standard PLA
• No mention of specific printer compatibility beyond general use

Good fit if

• You want durable prints that resist cracking
• You prefer a glossy, satin-like surface finish
• You need small spools for multi-color projects

Skip if

• You require large spools for long print jobs
• You prefer a matte or textured surface finish
• You need standard PLA for maximum cost efficiency

Verdict: YOOPAI SUNLU Silk PLA+ Rainbow 250g x8 delivers durable, glossy prints with precise feeding for decorative projects. It fits users who value impact resistance and multi-color variety in small quantities.

4 Also great

FLASHFORGE 1.75mm Rapid Rainbow Candy PLA

Best for: fast high-speed rainbow printing

Material Type

PLA

Filament Diameter

1.75mm

Net Weight

1kg

Max Print Speed

500mm/s

Dimensional Accuracy

+/- 0.02mm

Features

High Speed

View on Amazon: FLASHFORGE 1.75mm Rapid Rainbow Candy PLA Affiliate link

This is a 1kg spool of 1.75mm PLA filament designed for high-speed printing. It supports speeds up to 500mm/s with a dimensional accuracy of +/- 0.02mm. The Rainbow Candy color provides varied visual effects. It features upgraded tangle-smooth extrusion and strong bed adhesion. You should choose this if you need fast production with precise layer details and smooth flow.

Pros

• Supports print speeds up to 500mm/s
• Maintains +/- 0.02mm dimensional accuracy
• Upgraded tangle-smooth extrusion technology
• Strong first-layer bed adhesion

Cons

• Limited to 1kg spool weight
• No mention of vacuum sealing or drying requirements
• Only available in specific color options

Good fit if

• You prioritize fast print speeds
• You need precise dimensional consistency
• You want vibrant rainbow color effects

Skip if

• You require larger 2kg spools
• You prefer solid single-color prints
• You need specialized high-temp materials

Verdict: FLASHFORGE Rapid PLA Rainbow 1.75mm is built for users who demand speed without sacrificing precision. It fits those who need rapid production runs with reliable layer adhesion and consistent diameter control.

5 Best fdm

AMOLEN Matte PLA 1.75mm Rainbow 4-Pack

Best for: hiding layer lines with matte texture

Material Type

PLA

Filament Diameter

1.75mm

Net Weight

200G x4

Surface Finish

Matte

Printing Technology

FDM

Color Printing

Multi-Color

View on Amazon: AMOLEN Matte PLA 1.75mm Rainbow 4-Pack Affiliate link

AMOLEN Matte PLA 3D Printer Filament 1.75mm Bicolor Rainbow 200G x4 offers a distinct matte finish that conceals print lines. This bundle includes four 200-gram spools of 1.75mm filament with a rainbow color effect. The material is pre-dried and vacuum-sealed to prevent clogging. It is designed for stable extrusion and minimal warping. You will get consistent feeding and smooth layer bonding for vibrant, colorful prints.

Pros

• Matte surface finish hides layer lines
• Four 200-gram spools included in the bundle
• 1.75mm diameter for broad printer compatibility
• Pre-dried and vacuum-sealed to reduce moisture
• Rainbow bicolor color transitions

Cons

• Smaller 200-gram spool size compared to 1KG alternatives
• Total weight of 2.2 pounds is heavier than single spools
• Matte finish may require specific slicer settings for optimal texture

Good fit if

• You want to hide visible layer lines on prints
• You prefer a non-glossy surface texture
• You need multiple spools for large projects

Skip if

• You require high-speed printing capabilities
• You prefer a glossy or silk finish
• You need 1KG spools for fewer changes

Verdict: AMOLEN Rainbow Matte PLA 1.75mm suits buyers who prioritize a non-reflective surface and consistent color transitions. The four-spool bundle provides ample material for detailed projects where hiding layer lines is a priority.

6 Best budget

SUNLU 1.75mm Rainbow PLA Filament 1KG

Best for: Decorative prints with smooth color transitions

Material Type

PLA

Filament Diameter

1.75mm

Net Weight

1KG

Dimensional Accuracy

+/-0.02mm

Color Printing

Multi-Color

Color Effect

Rainbow

View on Amazon: SUNLU 1.75mm Rainbow PLA Filament 1KG Affiliate link

This SUNLU Rainbow PLA filament features a 1.75mm diameter with ±0.02mm dimensional accuracy. It uses a 1KG spool size suitable for most FDM printers. The color gradient shifts every 8 meters for natural transitions. You get a neat spool design to reduce tangles. Recommended settings include a nozzle temperature of 210-240°C and speeds up to 200mm/s. It is ideal for decorative items and toys.

Pros

• Consistent 1.75mm diameter with ±0.02mm tolerance
• 1KG spool weight for extended printing
• Color changes every 8 meters for smooth gradients
• Neatly wound spool reduces jam risks

Cons

• Lower max print speed of 200mm/s compared to high-speed alternatives
• Standard 1KG spool size rather than larger bulk options
• No mention of vacuum sealing or moisture protection

Good fit if

• You want reliable color transitions for decorative prints
• You need a standard 1.75mm filament for most FDM printers
• You prefer a neat spool to minimize tangles

Skip if

• You require high-speed printing above 200mm/s
• You need glow-in-the-dark or matte finishes
• You prefer bulk 8-pack bundles for cost efficiency

Verdict: SUNLU Rainbow PLA 1.75mm 1KG offers consistent diameter and smooth color gradients for decorative projects. It fits users who prioritize reliable feeding and standard spool sizes over high-speed performance.

7 Best glow in the dark

AMOLEN Glow PLA Bundle 1.75mm

Best for: Creating glowing models with paintable surfaces

Material Type

PLA

Filament Diameter

1.75mm

Net Weight

200Gx4

Dimensional Accuracy

+/- 0.02mm

Surface Finish

Glow in the dark

Color Effect

Rainbow

View on Amazon: AMOLEN Glow PLA Bundle 1.75mm Affiliate link

This bundle includes four 200-gram spools of 1.75mm PLA filament with glow-in-the-dark properties. The material contains 20% glow powder and maintains a dimensional accuracy of plus or minus 0.03mm. It is compatible with most FDM 3D printers and pens. The white base color allows for painting after printing. You get vacuum-sealed packaging to keep the filament dry.

Pros

• Contains 20% glow powder for luminous effects
• Dimensional accuracy of plus or minus 0.03mm
• Includes four 200-gram spools in a bundle
• Compatible with most FDM 3D printers
• Vacuum-sealed packaging with desiccant

Cons

• Filament is described as brittle
• Requires patience during printing
• UV exposure time must be controlled

Good fit if

• You want to print objects that glow in the dark
• You need small spools for testing new colors
• You plan to paint the finished prints

Skip if

• You require high-speed printing capabilities
• You prefer standard opaque colors
• You want to print large continuous parts

Verdict: AMOLEN Glow PLA 1.75mm 200g x4 is a specialized choice for makers who want to create glowing models. It fits users who value the novelty of luminescent prints over standard durability.

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Frequently asked questions

See also

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