Sunlu Promo Codes and Coupons October 2025

Sunlu logo

Sunlu

Sunlu.com is a manufacturer and retailer of 3D printing supplies, specializing in filaments, 3D printers, and related accessories. Founded in 2013, they've become known for offering budget-friendly 3D printing materials while maintaining decent quality standards. They serve both hobbyist and professional markets with a wide range of PLA, ABS, and specialty filaments.

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Today's Sunlu discount codes

TOP PICK
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3% off

7 uses
high

worked 7 months ago

Save 3% off with coupon
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3% off

923 uses
high

worked about 12 hours ago

3% Off Storewide (Minimum Order: $20) at Sunlu
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3% off

6 uses
high

worked 5 months ago

Score 3% off with coupon on $300+ orders
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3% off

36 uses
high

worked 1 day ago

3% Off Storewide at Sunlu

Featured Sunlu Products

[Buy 4 Get $2off Each] SUNLU Matte PLA Dual-Color 3D Printer Esthenic Filament 1KG, Seamless Two-Tone Shifts & Soft Matte Finish

[Buy 4 Get $2off Each] SUNLU Matte PLA Dual-Color 3D Printer Esthenic Filament 1KG, Seamless Two-Tone Shifts & Soft Matte Finish

[Elegant Matte Finish & Seamless Dual-Tone Effect]The filament produces a naturally soft, non-reflective surface that eliminates glare. Perfect for artistic and decorative prints where a sophisticated matte texture enhances the overall design.Enjoy two distinct colors in a single filament. Different surfaces of the model reveal different tones, creating smooth, natural transitions—ideal for unique accessories, decorative art, and personalized models. [Refined, Layer-Free Appearance & Natural Gradient Transitions]The color blending is smooth and seamless, with no harsh lines between tones, giving models a refined and professional aesthetic. Designed for ultra-smooth extrusion, this filament reduces visible layer lines and delivers a polished finish straight off the printer, minimizing post-processing work. [360° Visual Impact & Eye-Catching & Unique]Every viewing angle offers a new perspective—your prints appear alive, transforming under different lighting conditions and movements.Perfect for display pieces, art decor, cosplay props, or accessories—where standout, one-of-a-kind color effects matter. [Dynamic Dual-Color Shifts]The filament reveals different colors depending on the model’s angle or surface orientation, creating a visually captivating effect that changes as you move. [Creative Design Potential]Unlock new artistic possibilities by leveraging color shifts in strategic areas of your model to highlight details or create contrast naturally. Prints made with PLA Matte Dual-Color are highly photogenic, making them ideal for portfolio showcases, social media sharing, and exhibition pieces. [Flexible Printing Settings]Compatible with a broad temperature range (205–215°C) and speeds (50–100mm/s)、(215–245°C) and speeds (100–230mm/s) Whether printing detailed models at slow speed or larger projects at high speed, the results stay stable and smooth. Glue-free adhesion on heated beds (50–60°C). For non-heated beds, a thin layer of glue is recommended for strong first-layer bonding. [Precision & Stability]With a diameter tolerance of ±0.02mm, it ensures consistent extrusion, precise details, and reliable performance across a wide range of models. [Bubble-Free Printing]Manufactured under strict quality control, the filament is 100% free from air bubbles—preventing clogs and ensuring flawless prints from start to finish.

USD 15.99

SUNLU PLA Galaxy 1KG, Color-Shifting PLA Esthenic Filament, Sparkling Ultrafine Pearlescent Powder

SUNLU PLA Galaxy 1KG, Color-Shifting PLA Esthenic Filament, Sparkling Ultrafine Pearlescent Powder

[Mesmerizing Galaxy-Inspired Color-Shift]Drawing inspiration from the beauty of the Milky Way, SUNLU PLA Galaxy filament combines a deep cosmic backdrop with sparkling starlight effects. Thanks to its ultrafine color-changing pearlescent powder (particle size <200”m), your 3D prints will reveal dynamic color shifts under different angles of light. The result is a dazzling, starry finish that makes every print look extraordinary and truly one-of-a-kind. [Smooth, Clog-Free Printing Experience]Say goodbye to printing interruptions. PLA Galaxy is engineered for consistent, stable extrusion, ensuring smooth filament flow throughout the printing process. With precise 1.75mm ±0.03mm wire diameter tolerance and a recommended nozzle size of ≄0.4mm, it reduces the risk of nozzle clogs and delivers a reliable printing experience even at speeds up to 250mm/s. [Seamless Surface with Ultra-Fine Detail]This filament is designed to minimize layer lines, giving your creations a refined, professional look straight off the print bed. The shimmering pearlescent finish enhances the smooth surface, making every curve, edge, and texture stand out with elegance and precision. Perfect for creators who value both beauty and quality. [Endless Creative Applications]From decorative ornaments and jewelry to cosplay props, fashion pieces, and artistic sculptures, PLA Galaxy opens up limitless possibilities for creative projects. Its eye-catching finish makes it ideal for showpieces, gifts, or anything designed to stand out. Whether you’re a hobbyist or a professional, this filament elevates your designs to the next level. [Premium Strength & Durability]Beyond its stunning looks, PLA Galaxy is also built for performance. With a tensile strength of 100MPa and flexural strength of 163Mpa, it produces prints that are both beautiful and resilient. Its heat deflection capability up to 176℃ adds stability, while the 100% bubble-free quality guarantees consistent results roll after roll.

USD 17.99

[MOQ: 3KG] ABS 3D Printer Filament 0.9KG/1KG

[MOQ: 3KG] ABS 3D Printer Filament 0.9KG/1KG

SUNLU ABS 3D filament is a type of strong and durable filament, ideal for printing durable items or functional parts that require higher heat resistanceRecommended for Enclosed Printers, best used with an enclosed 3D printer to maintain consistent printing temperature and minimize warping for optimal results, like Bambulab P series, X series. [Impact Resistance and Durable] ABS filament can withstand long-term use without being prone to wear or damage and is not prone to breakage or deformation when impacted or squeezed. [Impact Strength and Toughness] ABS filament can withstand a certain amount of pressure without being easily deformed or broken and can resist surface damage such as friction and scratches, allowing the product to remain intact in appearance even after long-term use. [Recommended Print Setting] Nozzle print temperature: 250-260℃, Print platform temperature: 80-100℃, Printing speed: 40-60mm/s, Retraction distance: 5mm, Retraction speed: 50mm/s. Compatible with most FDM 3D printers that can use a 1.75 mm 3D printer filament. [Diameter Tolerance ± 0.02 mm] SUNLU ABS 1.75 mm 3D printer filament is manufactured with high precision work and therefore has a tolerance of only +/- 0.02 mm. SUNLU has more than 10 years of production experience and has set strict standards for its products. A professional team controls all aspects of production to ensure the diameter and quality of 3D filament spools. [Compatible with 99% 3D Printers] Compatible with most FDM 3D printers that can use 1.75mm 3D printer filament. The larger inner diameter of the filament spool makes unwinding easier. [SUNLU Service and Warranty] SUNLU has a professional team for 3D printer filaments. If there is any problem with the 3D filament or any problem with the order or invoice, please let us know. We are always at your service.

USD 14.99

High Speed PLA Marble 3D Printer Filament 1KG

High Speed PLA Marble 3D Printer Filament 1KG

Up to 600mm/s high speed 3d printing, no plugging, no drawing, no warping [Realistic Stone and Architectural Effects]SUNLU High Speed PLA Marble Filament, mimics natural stone and building materials, perfect for creating aesthetic, high-speed 3D prints. Ideal for architectural models, sculptures, and artistic creations with unique textures. [Marble-like Texture]The High Speed PLA Marble Filament enhanced with marble-like particles to give your 3D prints the appearance and texture of real marble. [Refined for Artistic Creations]High Speed PLA Marble Filament delivers smooth and delicate surfaces with a premium finish, free of plastic-like feel. Perfect for crafting intricate art pieces, ornaments, and decorative items. [High-Speed Printing Compatibility]Compatible with various high-speed 3D printers, supporting speeds from 50mm/s to 600mm/s with no stringing or clogging. (Filling speed up to 450mm/s, 600mm/s in case of thin walls) [Consistent Filament Diameter]SUNLU High Speed PLA Marble Filament ensures a stable diameter of 1.75mm±0.03 for smooth extrusion, excellent flow, and tangle-free printing. [Low Shrinkage for Large-Scale Models]SUNLU High Speed PLA Marble Filament designed with low shrinkage to prevent warping, making it ideal for printing large architectural models with precision.   Diameter: 1.75MM±0.03MMPrinting temperature:190-210℃: 50-150mm/s210-230℃: 150-300mm/s230-260℃: 300-600mm/sBed temp: no heating need to apply glue, heating 50-60 ℃ can not apply glueBubble: 100% zero bubbleNet weight: 1 KG / rollGross weight: 1.3 KG / rollLength: 1.75MM(1KG)≈330M

USD 17.99

What Sunlu coupons are available today?

We track so many discount codes. Read about today's Sunlu coupon statistics.

138
Sunlu deals available today
12
Active Sunlu codes
3% off
Biggest discount available
Get the best Sunlu promo codes and coupons that actually work. Our community of sustainability minded shoppers helps you save by testing and sharing:
  • Verified promo codes with live success rates from recent shoppers!
  • Exclusive single-use codes shared by our community (138 active codes).
  • Drop alerts when Sunlu's most popular items go on sale!
  • Deals for those who want extra savings opportunities
  • Insider savings tips from experienced Sunlu shoppers who know the best deals.

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Note: Our community tests every Sunlu promo code and shares results in real-time. Check success rates and shopping tips in the activity feed to find what works best for your purchase.
Sunlu logo

30% off

18 uses
high

worked 1 day ago

30% Off Storewide at Sunlu
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30% off

20 uses
high

worked 1 day ago

30% Off Storewide at Sunlu
Sunlu logo

30% off

17 uses
high

worked 1 day ago

30% Off Storewide at Sunlu
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35% off

1 uses
high

worked 1 day ago

35% Off Storewide at Sunlu

More Sunlu Products

[MOQ: 3KG] TPU 3D Printer Filament 1KG

[MOQ: 3KG] TPU 3D Printer Filament 1KG

Material: TPU Flexible Filament Diameter format: 1.75 mmPrinting temperature: 195-205°CTolerance: ±0.02 mmPrinting speed: 20-40 mm/sPlatform temperature: No needNet weight: 1kgGross weight: 1.26kgPackage dimensions: 22 * 22 * 14 mmThe melt flow rate: 5-8g / 10 minutes (190°C, 2.16kg)Certificate: RoHS, reachSuitable For Most Of 1.75MM FDM Printer

USD 19.99

SUNLU Transparent 3D Printer Enclosure

SUNLU Transparent 3D Printer Enclosure

[Dustproof insulation] With the same heat preservation and dustproof effect of flame retardant aluminum foil cloth heat preservation cover on the market, but with more easy to clean characteristics (acrylic + PC material) [Global visibility] Transparent top cover and front design, internal status at a glance, refusing to print anxiety (traditional thermal cover is too dark inside) [Flat and beautiful] The internal and external surfaces are smooth and flat, more beautiful than flame retardant fabric insulation cover [Extra Space] Both the dry box and AMS lite are “protected” together with the printer. Assembly Steps: Step 1: Take 2 Side columns (614.5mm) and insert them into both sides of the Side panel (570 x 600mm) and fix them with screws. (The side of the Side column with the screw holes is facing upwards). Step 2: Take out the Backplate (570×600mm) and connect it with the Side panel (570×600mm) and fix it with screws. Step 3: Remove the other Side panel (570×600mm), connect it with the Backplate (570×600mm) and fix it with screws. Step 4: Install the Front cover (570×600mm). Step 5: Finally, install the Top cover (600×600mm) and fix it with screws to complete the assembly. Packing Parameters:① Side column (614.5mm) *4② Top cover (600×600mm) *1⑱ Backplate (570×600mm) *4④ Side panel (570×600mm) *2â‘€ Front cover (570×600mm) *1â‘„ Screws *20

USD 69.99

[12th Prime Deal] High Speed PLA+(PLA Plus), HS_PLA+ 3D Printer Filament 1KG

[12th Prime Deal] High Speed PLA+(PLA Plus), HS_PLA+ 3D Printer Filament 1KG

[SUNLU 100% Wound Neatly Filament] SUNLU-owned tech has mastered advanced technology and produced 100% Neatly Wound PLA PLUS/PLA+ Filament, which is impossible for other brands. No knot, no winding, improve printing efficiency. [Good comprehensive mechanical properties] Particularly drop-resistant, impact strength up to 8KJ/m2, which is 2~3 times more than other PLA or PLA+ on the market, the color is brighter, and it has many advantages, Clog/Bubble/Tangle/Warping/Stringing free, easy to use, better layer adhesion. [1.75mm Diameter] Dimensional Accuracy +/- 0.02mm. SUNLU filament has wide compatibility due to the small diameter error, it's suitable for almost all 1.75mm FDM 3D printers. [Spool Diameter] Spool Diameter: 8.00", Spool Width: 2.50", Spool Hub Hole Diameter: 2.20". The size of the SUNLU filament spool is suitable for hanging on many 3D printers. [Strong Compatibility] SUNLU 3D Filament is not only applicable to all SUNLU 3D printing products: FDM 3D Printer, 3D Printer Accessories, and Filament Dyer, but also applicable to almost all FDM 3D printers of other brands. Diameter: 1.75MM ±0.02MMPlate temperature: 50-60℃N.W.: 1 KG / rollG.W.: 1.3 KG / rollLength: 1.75MM(1KG)=330M Printing speed:50-150mm/s at printing temp 200-215℃, 150-300mm/s at printing temp 215-230℃, 300-600mm/s at printing temp 230-260℃,

USD 12.99

SUNLU AMS Heater, Upgraded your Bambu AMS, Enables Drying while Printing

SUNLU AMS Heater, Upgraded your Bambu AMS, Enables Drying while Printing

Drying and printing are performed simultaneously. This is a heater that can upgrade the upper cover of the AMS. Compared to the traditional printing process using the AMS, which requires drying before printing, the upgraded version allows for simultaneous printing and drying. High-efficiency heating with uniform temperature distribution, reaching 70°C within 20 minutes. The dual airflow design ensures even heat circulation, preventing localized overheating of materials and effectively reducing the risk of thermal deformation. High compatibility: After upgrading to the AMS Heater, it supports stacked 16-color printing and saves space. Upgrades the heater for the AMS Generation 1 upper cover, seamlessly integrating with the Generation 1 seal strip and fully compatible with the Generation 1 seal preservation function. Simple upgrade process: Loosen—disassemble—tighten, completed in just 2 minutes. Intelligent humidity monitoring:  ① Humidity mode default heating temperature: 55°C—users can adjust and save the temperature.  ② Default operating time: 6 hours.  ⑱ After the countdown ends, the device does not shut down; it automatically starts heating when humidity rises to 50% and stops heating when humidity drops to 20%.  ④ In rH mode, users can adjust humidity (range: 25%–50%).  After adjustment, the humidity automatically starts using this set value. Safe and Reliable:PTC heating. Dual-level protection with a temperature control switch. Software-based intelligent temperature control, real-time temperature monitoring, and automatic control of the heating system. Maximum drying temperature of 70°C. Alarms are triggered when the temperature exceeds the set value by 10°C, when the temperature fails to rise, or when the fan malfunctions. The device operates according to the set time and automatically shuts down when the time reaches zero. Product dimensions 363mm × 278mm × 131mm (LWH) Outer box dimensions 415mm × 316mm × 190mm Maximum reel size φ250mm × 153mm (1kg × 4) Product net weight 1.7KG Temperature setting range 35°C–70°C Humidity display range See display: 10%-90% Time setting range 0-99H Power input specifications AC 110V 60Hz or AC 220V 50Hz Maximum operating current 2.2A@230V 4.15A@120V Maximum operating power 500W Standby power 0.6W Filament outlet hole compatible wire diameter φ1.75mm

USD 109.99

Sunlu logo

30% off

39 uses
high

worked 1 day ago

30% Off Storewide at Sunlu
Sunlu logo

30% off

34 uses
high

worked 1 day ago

30% Off Storewide at Sunlu
Sunlu logo

4% off

1 uses
high

worked 1 day ago

4% Off Storewide at Sunlu
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15% off

12 uses
high

worked 4 months ago

15% Off Storewide at Sunlu

Sustainability Score

42%
Sunlu shows significant room for improvement in sustainability practices. While they produce some recyclable materials, they lack transparency about their manufacturing processes and supply chain. There's limited information about their environmental impact reduction efforts, worker conditions, or sustainability commitments. Their packaging could be more eco-friendly, and they don't provide clear documentation about their waste management practices or energy usage in production facilities.

About Sunlu

4.0 (3)

FAQs

Sunlu regularly offers sales during major shopping events like Black Friday, Cyber Monday, and Prime Day. They also frequently run flash sales and seasonal promotions, typically at the end of each quarter.

The best deals are usually found during Black Friday (November) and their anniversary sale (usually in July). They also offer significant discounts during holiday seasons and when launching new products.

Yes, Sunlu offers volume discounts for bulk purchases, typically starting at 5+ spools of filament. They also have a rewards program that provides additional discounts for regular customers.

You can subscribe to their newsletter for exclusive deals, follow their social media accounts, or check their website's 'Deals' section regularly. They also frequently distribute discount codes through their YouTube partners.

In the past month, Sunlu has launched 9 new promo coupons for shopper discounts. This indicates that Sunlu provides regular opportunities for customers to save money on their purchases.

On average, Sunlu provides 4.5 discount coupons each month. Based on historical data, the average time between Sunlu coupon releases every 7 days. However, this rate depends on various factors such as seasonal promotions (Black Friday, Cyber Monday, etc.), product launches, or other marketing initiatives. To stay informed about upcoming discounts and promotions, we recommend checking Sunlu website regularly, subscribing to email newsletters, and following them on social media.

Sunlu is offering 12 working store-wide codes, however they are also offering 126 additional discount codes with a best discount of 3% off

terra.coupons is the #1 provider of discount codes for your favorite retailers, such as Sunlu. As a crowd-sourced platform for coupon codes, we accurate codes for over 10,000 stores. Save time and avoid expired codes by checking terra.coupons for the latest Sunlu discount codes.

Curated by

Aleksa P.

Aleksa P.

Deal Curator

Last updated October 2025

Aleksa is a deal finder from the tech-savvy city of Austin, Texas. A keen coder by day and a discount guru by night, Aleksa checks back regularly to update you with new deals.

Latest Sunlu coupon activity

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