6 Best Alternatives to the SUNLU Rainbow PLA Filament (2026)

How alternatives compare to SUNLU

SUNLU Rainbow PLA Filament 1.75mm 1kg

The SUNLU Rainbow PLA 1.75mm 1kg version keeps the same vibrant, shifting hues and tight dimensional accuracy as the original. You get the same pearly finish and reliable performance in smaller decorative prints. The main difference is the spool size. You receive 1kg instead of 2kg, which lowers the total material volume. This makes it a practical choice if you want to test the rainbow effect without committing to a larger roll. It suits makers who prioritize unique, multicolor details for toys or small gifts. You get the same color shift frequency and diameter tolerance, just in a more manageable quantity for lighter usage.

ELEGOO 2KG White 1.75mm PLA Filament

The ELEGOO 2KG White PLA Filament shifts focus from color to consistency. It offers a strict 1.75mm diameter with tight tolerances, ensuring stable extrusion for standard FDM projects. You lose the rainbow color effect entirely, receiving pure white filament instead. This product is designed for bulk white printing needs where uniformity matters more than visual variety. It fits users who need reliable, monochrome prints for functional parts or base layers. The 2kg size matches the original volume, but the material is solid white. You trade the pearly, multi-color aesthetic for dependable, clean white results that prioritize structural consistency over decorative appeal.

SUNLU PLA+ 2.0 1.75mm Filament 2kg

The SUNLU PLA+ 2.0 1.75mm Filament 2-Pack prioritizes speed and durability over colorful aesthetics. It features a tangle-free design for functional parts, but it does not offer the rainbow color shifts of the original. You receive black and white spools instead of vibrant, shifting hues. This filament suits users who need reliable, high-speed prints for practical applications. The 2kg size matches the original volume, but the material is solid colored. You trade the pearly, multi-color finish for enhanced durability and faster printing capabilities. It is a solid choice if you want consistent layer quality and strength, rather than the decorative, shifting colors of the Rainbow PLA.

Creality PLA 2KG Black and White Pack

The Creality PLA 2KG Black and White Pack delivers a sturdy supply of durable filament for monochrome projects. It focuses on strength and smooth printing rather than colorful variety. You receive black and white spools instead of the original’s rainbow shifts. This product suits users who prioritize durability and clean, solid colors for functional prints. The 2kg size matches the original volume, but the material is solid colored. You trade the pearly, multi-color aesthetic for reliable, high-strength performance. It is a practical choice if you need sturdy black or white prints, rather than the decorative, shifting hues that define the original SUNLU Rainbow PLA.

OVERTURE High Speed PLA Filament 2KG Bundle

The OVERTURE High Speed PLA Filament 2KG Bundle suits users who prioritize printing speed and consistent layer quality. It offers black and white options instead of the original’s rainbow color shifts. This filament is designed for functional prints requiring solid, durable finishes. You get a 2kg bundle that matches the original volume, but the material is solid colored. The high-speed capability allows for faster printing, but you lose the unique, shifting hues and pearly finish. It is a solid choice if you need reliable, monochrome results for practical applications, rather than the decorative, multi-color effects of the SUNLU Rainbow PLA.

ELEGOO PLA Plus 1.75mm Gray 2KG

The ELEGOO PLA Plus 1.75mm Gray 2KG focuses on durability and a smooth, glossy finish. It offers gray filament instead of the original’s rainbow shifts. This product is designed for tougher functional parts with higher impact strength. You receive a 2kg size that matches the original volume, but the material is solid gray. The tight dimensional accuracy ensures stable extrusion, similar to the original. However, you trade the pearly, multi-color aesthetic for enhanced durability and a glossy finish. It fits those who need functional parts with superior strength, rather than the decorative, shifting colors of the SUNLU Rainbow PLA.

Quick picks

Our 7 picks

1 Best overall

SUNLU Rainbow PLA Filament

Best for: Quick color shifts in small decorative prints

Material Type

PLA

Filament Diameter

1.75mm

Net Weight

1kg

Max Print Speed

60MM/s

Dimensional Accuracy

±0.02mm

Surface Finish

Pearly

View on Amazon: SUNLU Rainbow PLA Filament Affiliate link

This SUNLU filament offers a 2kg spool of 1.75mm PLA with a pearly, rainbow finish that shifts color every 8 meters. It maintains a dimensional accuracy of ±0.02mm and supports print speeds up to 60 mm/s. The vacuum-sealed packaging includes a desiccant to prevent moisture absorption. You will get consistent extrusion with no clogs or bubbles. It suits users who want vibrant, multi-color prints for decorations or gifts without complex slicing adjustments.

Pros

• Color changes every 8 meters for rapid variation
• Dimensional accuracy of ±0.02mm ensures consistent extrusion
• Vacuum-sealed with desiccant for moisture protection
• Recommended print speed up to 60 mm/s

Cons

• First color in the spool is random
• Finish is pearly rather than matte or glossy
• Maximum print speed capped at 60 mm/s

Good fit if

• You want quick color transitions for small items
• You need reliable diameter tolerance for consistent prints
• You prefer vacuum-sealed packaging for freshness

Skip if

• You require high-speed printing above 60 mm/s
• You need a predictable starting color sequence
• You prefer matte or glossy finishes over pearly

Verdict: SUNLU Rainbow PLA 2kg delivers consistent color shifts and tight diameter tolerances for reliable multi-color prints. It fits makers who prioritize vibrant, pearly finishes and vacuum-sealed freshness for decorative projects.

2 Best budget

SUNLU Rainbow PLA Filament 1.75mm 1kg

Best for: unique, multicolor decorative prints and toys

Material Type

PLA

Filament Diameter

1.75mm

Net Weight

1KG

Max Print Speed

200mm/s

Dimensional Accuracy

+/-0.02mm

Color Printing

Multi-Color

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

This SUNLU Rainbow PLA filament features a 1.75mm diameter with ±0.02mm tolerance for consistent feeding. The color shifts every 8 meters, creating natural gradients. It winds neatly to reduce tangles. The 1KG spool fits most FDM printers. You get bright, multicolor prints without clogs or bubbles. It suits makers wanting unique, eye-catching decorative objects or toys.

Pros

• 1.75mm diameter with ±0.02mm dimensional accuracy
• Color changes every 8 meters for natural gradients
• 100% neat winding rate reduces tangles
• Recommended print speed up to 200mm/s
• Compatible with most FDM 3D printers

Cons

• Only 1KG net weight per spool
• No mention of vacuum-sealed packaging
• Limited to standard PLA material properties

Good fit if

• You want unique, multicolor decorative prints
• You need reliable feeding with tight tolerances
• You are printing toys or ornaments

Skip if

• You require high-speed printing beyond 200mm/s
• You prefer solid, single-color builds
• You need large 2KG or larger spools

Verdict: SUNLU Rainbow PLA 1.75mm 1KG delivers consistent, colorful prints with tight diameter tolerances. It is a practical choice for makers who want to add vibrant, shifting hues to their decorative projects and toys.

3 Also great

ELEGOO 2KG White 1.75mm PLA Filament

Best for: Bulk white printing needs

Material Type

PLA

Filament Diameter

1.75mm

Net Weight

2kg

Dimensional Accuracy

+/- 0.02mm

Surface Finish

Glossy

Printing Technology

FDM

View on Amazon: ELEGOO 2KG White 1.75mm PLA Filament Affiliate link

ELEGOO offers this 1.75mm PLA filament in a 2KG package. It features a glossy surface finish and maintains a dimensional accuracy of +/- 0.02 mm. The material is dried and vacuum sealed to prevent clogging. It works with most FDM printers. This bundle provides two 1kg spools of white filament. It suits users who need reliable, consistent prints without complex setup.

Pros

• 1.75mm diameter with +/- 0.02 mm accuracy
• 2KG total weight (two 1kg spools)
• Glossy surface finish
• Vacuum sealed to prevent moisture issues

Cons

• Only available in white
• Not a rainbow or multi-color variant
• Standard PLA, not PLA+

Good fit if

• You need consistent white prints
• You want a larger 2KG supply
• You prefer vacuum-sealed filament

Skip if

• You require multi-color rainbow effects
• You need PLA+ for higher strength
• You only want a single 1kg spool

Verdict: ELEGOO PLA White 2KG is a practical option for users who need reliable white prints in bulk. Its strict dimensional accuracy ensures stable extrusion for standard FDM projects.

4 Also great

SUNLU PLA+ 2.0 1.75mm Filament 2kg

Best for: High-speed functional printing

Material Type

PLA+ 2.0

Filament Diameter

1.75mm

Net Weight

2kg

Max Print Speed

300mm/s

Dimensional Accuracy

+/-0.02mm

Weight

4.41 pounds

View on Amazon: SUNLU PLA+ 2.0 1.75mm Filament 2kg Affiliate link

This SUNLU PLA+ 2.0 filament offers a 2kg total weight in a 2-pack configuration. It features a 1.75mm diameter with +/- 0.02mm dimensional accuracy. The material supports print speeds up to 300mm/s. It uses a neat winding design to prevent tangling. Vacuum packaging keeps it moisture-free. It suits users needing reliable, fast printing for functional parts or models.

Pros

• Supports high-speed printing up to 300mm/s
• Neatly wound design prevents clogging and tangling
• Vacuum sealed for moisture protection
• Improved resistance to brittleness and cracking

Cons

• Limited color options in this specific pack
• Requires specific temperature settings for best results
• Heavier shipping weight due to packaging

Good fit if

• You need high-speed printing capabilities
• You want moisture-protected filament
• You prefer neatly wound spools

Skip if

• You require rainbow color effects
• You need single-color bulk rolls
• You prefer standard PLA over PLA+

Verdict: SUNLU PLA+ 2.0 1.75mm Filament 2-Pack is a solid choice for users who prioritize speed and durability in their prints. It fits those who want reliable, tangle-free filament for functional parts.

5 Also great

Creality PLA 2KG Black and White Pack

Best for: durable black and white prints

Material Type

PLA

Filament Diameter

1.75mm

Net Weight

2KG

Dimensional Accuracy

+/-0.02mm

Printing Technology

FDM

Surface Finish

Smooth

View on Amazon: Creality PLA 2KG Black and White Pack Affiliate link

This Creality filament bundle includes two 1kg spools of PLA, totaling 2kg. It features a patented manufacturing process for smooth, clog-free printing. The material offers improved toughness and strength, making it suitable for functional parts. It is compatible with 99% of FDM and FFF 3D printers with heated beds. The blend is made from renewable plant resources.

Pros

• Two 1kg spools for a total of 2kg
• Patented design ensures smooth, clog-free printing
• Improved toughness and strength for functional parts
• Compatible with 99% of FDM and FFF printers

Cons

• Limited to black and white color options
• Heavier package weight at 4.4 pounds
• No mention of vacuum-sealed packaging

Good fit if

• You need a high-volume 2kg supply
• You print functional parts requiring strength
• You prefer monochrome black and white prints

Skip if

• You require rainbow or multi-color effects
• You need specific colors like grey or blue
• You prefer lighter, single-spool packages

Verdict: Creality PLA 2-Pack Black & White delivers a sturdy 2kg supply of durable filament for monochrome projects. It fits users who prioritize strength and smooth printing over colorful variety.

6 Best premium

OVERTURE High Speed PLA Filament 2KG Bundle

Best for: fast black and white prints

Material Type

PLA

Filament Diameter

1.75mm

Net Weight

2kg

Dimensional Accuracy

±0.02mm

Printing Technology

FDM

Features

High Speed

View on Amazon: OVERTURE High Speed PLA Filament 2KG Bundle Affiliate link

Overture offers a 2KG bundle of High Speed PLA filament in 1.75mm diameter. It uses CCD cameras for dimensional accuracy within +/- 0.02mm. The material is pre-dried and vacuum-sealed to prevent clogs. You get a tidy spool with a large inner diameter for smooth feeding. This bundle includes black and white packs for versatile printing needs.

Pros

• High Speed PLA material for faster printing
• Dimensional accuracy of +/- 0.02mm
• 2KG total weight in a bundle
• Pre-dried and vacuum-sealed for quality
• Large inner diameter spool reduces friction

Cons

• Only includes black and white colors
• No rainbow color options available
• Limited to PLA material type

Good fit if

• You need high speed printing capabilities
• You prefer precise dimensional accuracy
• You want a 2KG bundle value

Skip if

• You require rainbow color variations
• You need other material types like ABS
• You prefer single color spools

Verdict: Overture High Speed PLA 2KG suits users who prioritize printing speed and consistent layer quality over colorful aesthetics. It is a solid choice for functional prints requiring black or white finishes.

7

ELEGOO PLA Plus 1.75mm Gray 2KG

Best for: Tougher functional parts with a glossy finish

Material Type

PLA Plus

Filament Diameter

1.75mm

Net Weight

2KG

Dimensional Accuracy

+/- 0.02mm

Surface Finish

Glossy

Printing Technology

FDM

View on Amazon: ELEGOO PLA Plus 1.75mm Gray 2KG Affiliate link

This ELEGOO PLA Plus filament offers 2KG of 1.75mm material with a glossy finish. It features a dimensional accuracy of +/- 0.02mm for consistent feeding. The design emphasizes higher toughness and impact strength, making it suitable for functional parts. It is vacuum sealed to prevent clogging and bubbles. You get a neat, less-tangle spool that prints easily at lower temperatures.

Pros

• Enhanced toughness and impact strength for durable prints
• Dimensional accuracy of +/- 0.02mm ensures smooth feeding
• Glossy surface finish with strong layer bonding
• Vacuum sealed to prevent moisture, clogging, and bubbles

Cons

• Only available in solid colors like Gray, not rainbow
• Standard PLA Plus material, not high-speed optimized
• No specific temperature range listed for optimal printing

Good fit if

• You need tougher parts with better impact resistance
• You prefer a glossy surface finish on your prints
• You want a reliable 2KG spool for general use

Skip if

• You are looking for multi-color or rainbow effects
• You require high-speed printing capabilities
• You need a specific color not listed in options

Verdict: ELEGOO PLA Plus 2KG Gray is a solid choice for users prioritizing durability and a smooth, glossy finish. It fits those who need functional parts with higher impact strength rather than decorative, multi-color prints.

Specifications side by side

Frequently asked questions