
Sunlu Silk PLA+
1.75mm 1kg
Silk PLA+ is a type of polylactic acid (PLA+) filament that has a slight sheen reminiscent of silk fabric. It differs from glossy and matte PLA by having an intermediate level of reflectivity. The terms gloss, silk, and matte originate from paints, indicating different degrees of light reflection.
Key Features
Silky-Smooth Finish
Creates a shiny, silky surface with eye-catching luster – no post-processing needed.
Vibrant and Elegant Colors
Rich, intense tones that make decorative prints stand out instantly.
Easy Printing, Reliable Results
Prints smoothly like standard PLA+, ideal for both beginners and display models.
Diameter: 1.75 ± 0.02 mm
Print Temperature:
205–215 °C: 50–100 mm/s
215–235 °C: 100–200 mm/s
Print Bed Temperature:
Without heating: adhesive required
When heated to 50–60 °C: adhesive not needed
Bubbles: 100% bubble-free
Net Weight: 1 kg/spool
Gross Weight: 1.3 kg/spool
Length: 1.75 mm (1 kg) = 330 m
SUNLU SILK PLA+ Filament
SUNLU SILK PLA PLUS filament provides an impressive, glossy finish that surpasses standard PLA PLUS. Its smooth and silky surface requires no post-processing, making it perfect for artistic and craft projects. It adds a luxurious sheen to your 3D prints, elevating your creations with a brilliant, silky-smooth appearance.

Stunning Glossy Finish
SUNLU SILK PLA PLUS filament delivers a brilliant, glossy surface that outshines standard PLA PLUS. Its smooth, silky finish requires no post-processing, making it perfect for artistic and craft projects. The filament adds a luxurious luster to your 3D prints, giving them an elegant, silky-smooth appearance.


Seamless Printing Experience
Enjoy smooth and reliable printing with SUNLU SILK PLA PLUS. The filament feeds smoothly without clogging or tangling. With a precise diameter of 1.75 mm (tolerance ±0.02 mm) and a 1 kg spool, it ensures consistent, warp-free prints. No more nozzle clogs, just quick, stable results every time.
Optimal Print Settings
SUNLU SILK PLA PLUS is designed for easy, high-quality 3D printing. High purity, low shrinkage, and excellent layer adhesion ensure superior performance. Recommended print temperatures: 205–215 °C at 50–100 mm/s, 215–235 °C at 100–200 mm/s, with a heated print bed at 50–60 °C.

Perfectly Wound Filament
SUNLU's professional manufacturing process ensures neatly wound filament, minimizing the risk of tangling during printing. Each spool undergoes both mechanical winding and careful manual inspection to ensure smooth and uninterrupted printing with few knots.
Vacuum Sealed for Quality
SUNLU SILK filament is vacuum-sealed with desiccant to keep it free from dust and moisture. This ensures bubble-free, low-shrinkage, and low-warpage prints, protecting the filament and maintaining its quality for flawless results.
SUNLU Silk Filament
Silk is formulated with additives that provide a subtle sheen without being overly glossy. Many PLAs contain various modifiers to achieve ideal printing properties or aesthetics. In silk PLA+, the additives create the characteristic silk-like luster. While mica is a common additive for gloss in paints, most silk PLA+ uses a small amount of thermoplastic elastomers (TPEs) to achieve the desired effect.
Since silk PLA+ is a polymer blended with special additives, optimal settings depend on the specific material, brand, and color. Fine-tuning is required to achieve the best results with each silk PLA+ formulation. When printing silk PLA+, the print temperature is slightly higher than with normal PLA.
Many Colors
Sunlu Silk PLA+ is available in a wide range of colors, giving you the freedom to print exactly the ideas you have. With 14 different colors to choose from, you are guaranteed a glossy finish in precisely the shade you need.

| Color | Hex Code | Display |
|---|---|---|
| Black | #1d1c1b | |
| White | #fffff9 | |
| Grey | #7f95a5 | |
| Red | #e13e52 | |
| Black Jade | #3d493e | |
| Brass | #ffae11 | |
| Red Copper | #a45e49 | |
| Bronze | #779e7c | |
| Candy Dandy | #fb637e | |
| Light Gold | #f1be48 | |
| Silver | #91a2c0 | |
| Yellow | #f7de02 | |
| Green | #04c7b1 | |
| Purple | #904896 | |
| Blue | #00aaea | |
| Orange | #ff7f32 | |
| Pink | #ffc2d8 | |
| Dark Purple | #485cc7 |

Recommended Print Settings
| Setting | Value |
|---|---|
| Drying Settings (hot air oven) | 65 °C, 8 hours |
| Humidity during printing and storage | < 20% RH (sealed, with desiccant) |
| Nozzle Temperature | 205–215 °C: 50–100 mm/s 215–235 °C: 100–300 mm/s |
| Print Bed Temperature | 50–60 °C |
| Print Speed | < 300 mm/s |
Physical Properties
| Property | Value |
|---|---|
| Density | 1.25 g/cm³ |
| Vicat Softening Temperature | 54 °C |
| Heat Deflection Temperature | 53 °C |
| Melting Temperature | 164 °C |
| Melt Flow Index | 9 g/10 min |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 60.6 MPa |
| Elongation at Break | 6.3 % |
| Flexural Strength | 65 MPa |
| Flexural Modulus | 2760 MPa |
| Impact Strength | 4.2 kJ/m² |
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