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SUNLU Silk Triple Color PLA Filament 1KG

SUNLU Silk Triple Color PLA Filament 1KG

By SUNLU · Filament & Resin · 3D Printing · More from SUNLU

  • Diameter: 1.75±0.02mm
  • Nozzle Temperature: 210-230°C
  • Bed Temperature: 50-60°C
  • Print Speed: 50-200mm/s
  • Density: 1.23 g/cm³

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Used, refurbished, open-box

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Problems, parts and running costs

Summary

A single-extrusion silk filament that prints three colors at once from one 1.75 mm strand, for decorative parts where the shifting color is the point. Check your nozzle and temperature profile before buying: owners report clogs on 0.2 mm nozzles, and the exact color combination in a listing may not match what ships.

Strengths

  • Three-color shift from one strand with no AMS, purge towers or manual changes.
  • Glossy finish can reduce sanding and painting on decorative parts.
  • Claimed ±0.02 mm tolerance and broad FDM compatibility.
  • SUNLU targets figurines, accessories, toys and ornamental lighting.
  • Owners report successful smooth prints with ordinary silk profiles.

Weaknesses

  • Owners report clogs on 0.2 mm nozzles and early extrusion stops.
  • Color layout depends on viewing angle and toolpath, not a fixed schedule.
  • Thermal limits: softens near 54°C, so not for hot cars or fixtures.
  • Exact color combination in a listing may not match what ships.
  • Some reseller temperature advice conflicts with the current TDS.
  • Manufacturer warranty terms for filament are unclear and conflict between pages.

Verified specifications

Diameter1.75 mm, 1 kg net filament per spool.
Color constructionthree colored sectors co-extruded into one strand; apparent color shifts with viewing angle and toolpath direction.
Diameter tolerance±0.02 mm (manufacturer claim).
Spoolabout 330 m of filament; about 1.3 kg gross packed weight.
Manufacturer nozzle/speed210–230°C at 50–200 mm/s; bed 50–60°C; textured PEI plate; cooling fan on; retraction 0.8–1.2 mm at 30–40 mm/s.
Conflicting seller profilesome resellers suggest 205–215°C at 40–60 mm/s with a 50–65°C bed.
Thermalheat-deflection 57±3°C at 0.45 MPa; Vicat softening 54°C; glass transition 60.9°C; melting 164°C.
Mechanical (ISO lab specimens, printed at 220°C, 90 mm/s, 100% infill): tensile 50±4 MPa, flexural 78±5 MPa, elongation 11±3%, flexural modulus 2600±300 MPa, notched Izod 3.5±1.5 kJ/m².
Other datadensity 1.23 g/cm³; shrinkage 0.1–0.3%; melt flow 7±2.5 g/10 min at 190°C / 2.16 kg.
Moisturedrying at 50°C (duration not specified); store and print below 20% relative humidity.
Food safetynot recommended for tableware.
Available combinationsRed/Yellow/Green, Red/Yellow/Blue, Orange/Blue/Green, Blue/Green/Purple, Black/Gold/Purple.
Full research notes and sources

SUNLU’s product-specific TDS calls for 210–230°C nozzle, 50–200 mm/s, 50–60°C bed, textured PEI, cooling fan on, and 0.8–1.2 mm retraction at 30–40 mm/s. Some resellers still quote 205–215°C at 40–60 mm/s with a 50–65°C bed; trust the newer TDS for a baseline, then tune on the actual printer. Owners report repeated clogs on 0.2 mm nozzles on miniature prints, so a 0.4 mm nozzle is a safer starting choice for decorative work, though that is shop advice rather than a manufacturer minimum. Silk blends often need a dedicated preset, temperature tower, flow check and retraction tuning instead of ordinary PLA defaults.

Color behavior

The three colors sit side by side in one strand, so which color shows depends on viewing angle, part orientation and slicing direction. Neighboring walls or rotated parts can look different even when the spool works as intended, and there is no predictable lengthwise color schedule. Treat the effect as visual, not dimensional: the TDS numbers are laboratory values on ISO specimens printed at 220°C, 90 mm/s, 100% infill, not guaranteed properties for every print.

Running costs and parts

This is a consumed material, not equipment. At the verified US reference of $29.99 per 1 kg roll, a buyer using 1 kg a year spends $29.99, 2 kg $59.98, 5 kg $149.95 and 10 kg $299.90, before tax, shipping, failed prints and support material. The optional SUNLU FilaDryer S1 Plus is a one-time $39.99 accessory with adjustable 35–55°C, useful for the 50°C drying setting, but the TDS gives no drying duration for this filament. Desiccant and a dry box are recommended to keep stored material below 20% relative humidity; no priced replacement spool or desiccant kit was found.

Support and returns

SUNLU’s direct storefront describes 14 days after delivery for unused returns and references a 30-day exchange window, with filament returns required unopened and resellable. A separate manufacturer warranty page excludes FDM consumables from the electronics warranty and instead states 7-day return and 15-day exchange terms. The two pages conflict, so confirm the applicable seller’s written rules before ordering. For suspected defects, keep the product label, invoice, photos of spool and winding, slicer profile and diameter measurements, and contact the retailer first; SUNLU lists support@sunlu.com with a stated 1–2 working day assessment target. PhotonLight’s policy on the exact variant is 30 days for most new, unopened items, with seller-paid return shipping for wrong or defective items, and free US shipping above $35, so a single $29.99 spool may incur shipping.

Is it worth it?

At $24.99 or less delivered for a confirmed SUNLU tri-color 1 kg spool, this is a good buy for decorative work. Above $27.99, compare Ziro Tri-Color at $26.99 and AMOLEN Triple-Color at $27.99, especially if their color combinations better match the project. The verified SUNLU reference is $29.99 at PhotonLight for the Red/Yellow/Green 1 kg spool. Paying that much is defensible only for the desired color, verified availability or known printer compatibility. Do not treat a $16.99 direct-store headline as the US tri-color price; that page initially selects a European ship-to and a dual-color variant. Also avoid confusing 1 kg, 250 g sample, 3 kg minimum order, rainbow-gradient and dual- or four-color pages; verify color, price and ship-to at checkout.

Which model this is

This covers SUNLU Silk PLA+ Tri-Color, 1.75 mm, 1 kg net, sold in five combinations: Red/Yellow/Green, Red/Yellow/Blue, Orange/Blue/Green, Blue/Green/Purple and Black/Gold/Purple. The queued title does not name a color combination, so confirm the exact mix before ordering; retailers often merge dual, triple and four-color variants on one page. No GTIN or UPC for an individual color variant was found in the research.

Sources

Manufacturer:

Owner reports:

Stores:

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See also

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