SUNLU Tri Color PLA Filament: Spools, Bundles and Finishes

As Amazon Associates, we earn from qualifying purchases. This means we may receive a small commission at no extra cost to you if you click through and make a purchase.

Selecting the right coextruded filament comes down to balancing material volume against color variety. Makers producing large ornamental displays, vases, or cosplay accessories often prioritize full-size spools that can run uninterrupted through extended print jobs. Conversely, hobbyists focusing on small articulated figures, desk accents, or seasonal gifts frequently benefit from multi-pack assortments that provide several distinct color transitions without amassing unused material. Because coextrusion integrates multiple colored polymers along the length of a single strand, the orientation, finish, and spool capacity directly determine how practical each option is for your everyday 3D printing workflow.

The SUNLU multicolor catalog is structured primarily around spool format, package volume, and filament formulation. Shoppers navigating this line will find standalone single-kilogram spools, high-volume bulk bundles containing four full-size rolls, and compact sample-style packs utilizing 250-gram mini spools. Across these options, the manufacturer provides standard silk blends as well as reinforced Silk PLA+ formulations designed for elevated impact resistance, alongside varying color configurations ranging from dual-tone pairs to three-way chromatic splits.

SUNLU Tri-Color PLA Filaments Lineup at a Glance

The Models in Detail

01 SUNLU Silk Tri Color PLA+ Filament Optimized for Quality & Compatibility

Check price on Amazon 4.1 out of 5 — average from Amazon buyers

Best for: Large single-piece decorative displays

Pros

• 360-degree color shift
• Tangle-free mechanical winding
• Precise ±0.02mm tolerance

Cons

• Single color combination
• No storage bag mentioned

Designed for standalone artistic prints that require continuous material flow, the SUNLU Silk Tri Color PLA+ Filament delivers a single 1kg spool featuring a coextruded blue, green, and purple combination. The listing specifies a 360-degree color-shifting chrome-like shine that changes its apparent hue depending on the viewing angle. Engineered with a ±0.02mm diameter accuracy across its 1.75mm width, it utilizes high-purity polylactic acid to maintain stable extrusion and reduce layer-line visibility right off the build plate without requiring sanding.

Operational specifications from the manufacturer outline an extrusion temperature range of 205°C to 215°C and an elevated bed temperature recommendation of 60°C to 80°C. Slower operating speeds between 30mm/s and 60mm/s are explicitly noted to maximize the exterior silk gloss. Whilemakers seeking gradient spectrums may also look into options like sunlu pla rainbow, this coextruded strand maintains all three colors concurrently along the entire perimeter. It is best suited for makers producing large, single-piece centerpieces who want a dedicated tri-color spool without intermediate material swaps.

02 SUNLU 4KG Triple Color Silk Filament 1 Triple Color Silk PLA Plus The color combinations include

Check price on Amazon 4.5 out of 5 — average from Amazon buyers

Best for: High-volume workshop production

Pros

• Four full 1kg spools
• Toughness 50x standard PLA
• Includes reusable vacuum bags

Cons

• Requires bulk storage space
• High total volume per purchase

The SUNLU 4KG Triple Color Silk Filament pack addresses workshop-scale needs by packaging four distinct 1kg spools into a single purchase. The included color variants comprise blue-green-purple, orange-blue-green, red-yellow-blue, and red-yellow-green. This bundle is formulated under the brand’s sunlu silk pla plus designation, which the listing notes provides impact toughness fifty times higher than standard PLA formulations. This mechanical resilience ensures parts can resist brittle cracking or shattering under light compression.

Each spool is machine-wound to prevent crossovers and tangling during long-duration runs. The manufacturer includes reusable vacuum storage bags and dual-assurance desiccants inside the box to safeguard unmounted spools against ambient humidity. Suggested printer configurations include nozzle temperatures between 205°C and 215°C and platform settings between 50°C and 65°C. This sunlu 4kg silk filament bundle serves high-output print farms, functional toy makers, and commercial craft producers who require bulk volume across several shifting palettes.

03 SUNLU Silk Triple Color Pla Filament 1 Triple Color Silk PLA Plus SUNLU Triple Color Silk PLA Plus 3D Printer

Check price on Amazon 4.4 out of 5 — average from Amazon buyers

Best for: Beginner multi-color figurine printing

Pros

• Four tri-color mini spools
• Steady ±0.02mm extrusion
• Fits open spool holders

Cons

• AMS use requires printed adapter
• Listing item counts conflict

Best for: Standard everyday decorative printing

Pros

• Includes vacuum storage bag
• High impact resistance
• Glossy finish without polishing

Cons

• Single colorway per spool
• Narrow bed temperature window

Offering a standard single-roll alternative for everyday crafting, the SUNLU Silk Triple Color Pla Filament supplies a 1kg spool wound with the popular blue-green-purple color combination. Like its multi-pack counterparts, this filament utilizes triple-color coextrusion to present distinct color fields as the finished object rotates in the light. Its surface profile creates a reflective silk finish directly from the print bed, eliminating manual post-processing routines.

According to the product specifications, this filament integrates enhanced PLA+ material properties for improved impact toughness over basic PLA. The package contains a reusable vacuum bag alongside desiccant packs to protect the roll between print sessions. Print settings mirror the manufacturer’s standard parameters: 205°C to 215°C hotend temperature and 50°C to 65°C on the heated bed. It represents an ideal choice for makers who want full 1kg capacity for medium-to-large prints without committing to multi-kilogram bulk bundles.

04 SUNLU Silk PLA+ Filament 1.75mm Multicolor Silky Finish with Vivid Shine

Check price on Amazon 4.4 out of 5 — average from Amazon buyers

Best for: Testing multiple dual-color combinations

Pros

• Four 250g mini spools
• Enhanced PLA+ toughness
• Individual desiccant packaging

Cons

• Runs out quickly on large prints
• Requires AMS spool adapters

For hobbyists who prefer diverse finishes without storing excess plastic, the SUNLU Silk PLA+ Filament 1.75mm Multicolor provides a bundle of four 250g mini spools totaling 1kg of material. The color combinations listed include Red Gold, Blue Green, Red Blue, and Green Purple. Although the listing references both dual and triple color terminology in its marketing, the title highlights dual-color pairs that produce distinct two-tone shifts across complex models and cosplay props.

Built with upgraded PLA Plus toughness, this formulation reduces breakage on delicate overhangs and thin-walled parts. Each 250g spool is individually vacuum-sealed with desiccant and machine-wound to maintain a tight ±0.02mm diameter tolerance. This sunlu dual color silk pla pack fits users experimenting with multiple palettes across small prints, though users running automatic multi-material systems should account for the physical dimensions of the smaller spools during feeding.

05 SUNLU 250G Silk Triple Color PLA Triple Color Silk PLA Plus

Check price on Amazon 4.7 out of 5 — average from Amazon buyers

Best for: Fast-paced printing across varied colors

Pros

• Supports up to 200mm/s speed
• Four distinct tri-color spools
• Individually vacuum packed

Cons

• Requires 250g spool adapter for AMS
• Smaller continuous print run

The SUNLU 250G Silk Triple Color PLA set divides 1kg of material into four 250-gram spools, each sporting a distinct three-color coextrusion blend. The listing highlights extensive printing flexibility, citing operational nozzle temperatures of 210°C to 230°C, bed temperatures of 50°C to 60°C, and print speeds reaching 100mm/s to 200mm/s. This makes it an adaptable choice for modern high-speed 3D printing equipment.

Physical spool dimensions are explicitly detailed: an outer diameter of 140mm, width of 36mm, and a center hub hole of 53mm. Because these mini spools differ from standard 1kg dimensions, the listing specifically instructs users operating automatic feeder systems—such as those seeking 3d printer filament bambu lab setups—to download and print a 250g spool adapter from MakerWorld. This sunlu 250g filament bundle is exceptionally well matched for rapid testing, desk figures, and multi-colored prototypes where 1kg of a single hue is unnecessary.

06 SUNLU Silk Triple Color PLA 1.75mm Multiple compact 250g mini spools provide practical amounts of different

Check price on Amazon 4.2 out of 5 — average from Amazon buyers

Branded within the manufacturer’s beginner-friendly series, the SUNLU Silk Triple Color PLA 1.75mm offers a multi-spool bundle centered on intricate decorative printing. The highlight data specifies a four-roll assortment comprising Black Gold Purple, Red Yellow Blue, Orange Blue Green, and Blue Green Purple. Combining three distinct color paths inside a single 1.75mm strand, it is engineered for articulated dragons, vases, and organic sculptures that accentuate chromatic shifts along steep contours.

Spool measurements align with standard mini-spool standards at 140mm diameter, 36mm width, and a 53mm hub diameter, fitting standard external or overhead spool holders without modification. Like other 250g formats, an adapter from MakerWorld is advised when loading into enclosed multi-material feeder units. The listing advises keeping light tension on the filament leader during loading to prevent overlapping wraps. This kit is tailored for newcomers seeking a broad spectrum of triple-color silk filament without amassing full-sized spools.

Matching a Model to Your Setup

• High-volume print farms and production workshops: Choose the SUNLU 4KG Triple Color Silk Filament bundle to secure four full 1kg spools with included vacuum storage bags and reinforced PLA+ toughness.
• Large single-piece decorative displays: Choose the SUNLU Silk Tri Color PLA+ Filament to run long-duration vases and sculptures from a single 1kg spool without needing to swap rolls mid-print.
• High-speed automated desktop machines: Choose the SUNLU 250G Silk Triple Color PLA set, which explicitly supports operating speeds between 100mm/s and 200mm/s alongside a MakerWorld adapter.
• Hobbyists printing small gifts and desk toys: Choose the SUNLU Silk Triple Color PLA 1.75mm beginner pack to test four distinct three-color combinations across compact articulated figures.
• Crafters preferring dual-tone contrasts: Choose the SUNLU Silk PLA+ Filament 1.75mm Multicolor pack to access rich dual-color combinations across four separate 250g spools.
• Makers needing everyday general decoration: Choose the standalone SUNLU Silk Triple Color Pla Filament for a proven blue-green-purple blend on a standard 1kg spool.

Before You Buy

Before purchasing multicolor PLA filament, shoppers should review their printer’s physical spool mounting hardware. Standard 1kg rolls fit virtually all open-frame spindles and enclosed automated material systems without modifications. In contrast, 250g mini spools feature an outer diameter of 140mm and a width of 36mm, which can cause them to sit improperly in certain feeder rollers or automatic enclosures. The product listings explicitly note that using these smaller spools inside automated material systems like the Bambu Lab AMS requires printing a compatible 250g hub adapter from online model repositories.

Shoppers must also observe variations in manufacturer recommended temperatures and package contents across the product line. While some product listings detail specific bed temperatures ranging up to 80°C or extrusion speeds up to 200mm/s, other listings omit bed temperature ranges or print speed parameters entirely. Additionally, while the full-size bundles and standard 1kg spools specify the inclusion of reusable vacuum storage bags and desiccant packs, certain single-spool listings do not specify extra packaging accessories beyond standard factory sealing. Checking whether your print area requires dedicated dry storage will help maintain consistent surface quality over time.

FAQ

What is the difference between dual-color and tri-color silk PLA?

Dual-color filament combines two colors coextruded alongside each other in a single strand, while tri-color coextrusion combines three distinct pigments. As the printer lays down lines, the spatial orientation of the nozzle causes different colors to face outward, creating a dynamic color shift across curved perimeters and model angles.

Do 250g SUNLU spools fit directly into automated material systems?

While 250g spools fit standard external and top-mounted spool holders with a 53mm hub opening, the listings state that using them inside automated feed systems like the Bambu Lab AMS or AMS lite requires printing a 250g spool adapter from MakerWorld to ensure smooth rolling and reliable feeding.

Does silk PLA require post-processing to look shiny?

The listings specify that SUNLU silk PLA filaments produce a glossy, satin-like finish straight from the 3D printer without the need for sanding, polishing, or chemical treatments. Slower print speeds, typically between 30mm/s and 60mm/s, are recommended by the manufacturer to enhance surface sheen.

How does Silk PLA+ differ from standard PLA?

According to the product specifications, the Silk PLA+ formulation includes additives that increase toughness up to fifty times compared to standard PLA. This enhanced resilience improves flexibility and impact resistance, reducing the likelihood of parts shattering or snapping under stress.

Which SUNLU silk filament should I buy for varied small prints?

If you want to determine which SUNLU silk to buy for varied smaller models, the 250g multi-pack bundles provide the greatest flexibility. They allow you to produce several different multi-hued prints without leaving large quantities of unused filament on full-sized 1kg spools.