Sunlu Filament: Mastering the Art of 3D Printing


As a 3D printing lover I’ve had the opportunity to explore various filaments for my projects. One brand that has consistently impressed me with its quality and affordability is Sunlu Filament. In this article, I will provide you with a comprehensive overview of Sunlu Filament for 3D printing, including a breakdown of different filament types, a comparison of prices, and suggestions for choosing the right filament for your needs.

Understanding the Importance of Filament Selection for 3D Printing

Before we delve into the world of Sunlu Filament, let’s first understand why choosing the right filament is crucial for successful 3D printing. The filament serves as the building block of your prints, and its properties directly impact the final result. Factors such as print quality, strength, flexibility, and heat resistance are determined by the filament you use.

Exploring Different Types of Sunlu Filaments

Sunlu offers a diverse range of filaments, each with its unique characteristics and applications. Let’s take a closer look at the most popular types:

PLA Filaments

PLA (Polylactic Acid) filaments are widely used in the 3D printing community due to their ease of use and environmental friendliness. Sunlu PLA filaments are made from renewable sources such as cornstarch and sugarcane, making them biodegradable and odorless. They are perfect for general-purpose printing and are available in a wide array of colors.

PETG Filaments

Sunlu PETG (Polyethylene Terephthalate Glycol-Modified) filaments combine the strength of ABS with the ease of use of PLA. These filaments are known for their excellent layer adhesion, durability, and resistance to moisture. Sunlu PETG filaments are ideal for functional parts, mechanical prints, and objects that require impact resistance.

TPU Filaments

If you’re looking to print flexible objects like rubbery materials or elastic parts, Sunlu TPU (Thermoplastic Polyurethane) filaments are a great choice. TPU filaments offer high flexibility, good chemical resistance, and excellent layer adhesion. They are often used for creating wearable items, phone cases, and vibration dampening components.

ABS Filaments

Sunlu ABS (Acrylonitrile Butadiene Styrene) filaments are known for their heat resistance and mechanical strength. ABS is a popular choice for functional prototypes and parts that require durability. These filaments can withstand higher temperatures, making them suitable for applications like automotive parts, electronic enclosures, drones, and machinery components.

Comparing Sunlu Filament Prices

Comparing Sunlu Filament Prices

Now that we have an understanding of the different types of Sunlu filaments, let’s explore the price ranges available in the market:

Budget-friendly Sunlu Filaments

For those on a tight budget, Sunlu offers cost-effective options without compromising quality. These budget-friendly filaments provide decent print quality and come in a variety of colors. They are suitable for beginners and hobbyists who want to explore the world of 3D printing without breaking the bank.

Mid-range Sunlu Filaments

If you’re looking for a balance between affordability and premium features, Sunlu’s mid-range filaments offer excellent value for money. These filaments often provide enhanced properties such as increased strength, improved layer adhesion, and a wider range of color options. They are ideal for intermediate users who want better performance without a significant price jump.

Premium Sunlu Filaments

For professionals and those seeking top-of-the-line performance, Sunlu’s premium filaments deliver exceptional quality and reliability. These filaments are engineered to meet the highest standards, offering superior print accuracy, consistent color, and advanced material properties. While they may come at a higher price, they are worth the investment for complex projects and demanding applications.

Factors to Consider When Choosing Sunlu Filament

Factors to Consider When Choosing Sunlu Filament

When selecting a Sunlu filament for your 3D printing projects, several factors should be taken into account:

Print Quality

The overall print quality of the filament, including surface finish, layer adhesion, and dimensional accuracy, is crucial. Sunlu filaments are known for their consistent quality, but it’s important to choose a filament that suits your specific printing requirements.

Filament Diameter and Tolerance

Ensuring that the filament diameter is accurate and within the specified tolerance range is essential for smooth and reliable printing. Sunlu provides detailed specifications for each filament type, allowing you to choose the appropriate diameter for your printer.

Material Properties

Different materials have varying characteristics, such as strength, flexibility, and temperature resistance. Consider the specific properties you need for your project and choose a Sunlu filament that aligns with those requirements.

Compatibility with 3D Printers

Not all filaments are compatible with every 3D printer. Check the manufacturer’s recommendations and user reviews to ensure that the Sunlu filament you choose works seamlessly with your printer model.

Environmental Considerations

If sustainability is a priority for you, Sunlu PLA filaments offer an eco-friendly option. These filaments are derived from renewable resources and can be composted, reducing their impact on the environment.

Top Sunlu Filaments for Different Applications

Top Sunlu Filaments for Different Applications

Based on my personal experience and user feedback, here are some recommendations for specific applications:

Sunlu PLA+ Filament for General 3D Printing

Sunlu PLA+ filaments provide improved strength and durability compared to standard PLA. They are suitable for a wide range of projects, including prototypes, figurines, and decorative items. With vibrant colors and excellent printability, Sunlu PLA+ filaments are a reliable choice for general-purpose printing.

1. SUNLU PLA Matte Filament (Matte Purple)


  • Matte Finish: Provides a smooth, non-glossy finish, suitable for premium and mysterious 3D models.
  • Dimensional Tolerance: +/- 0.03mm accuracy ensures consistent feeding and stable prints.
  • No Odor & No Bubbles: Made mainly from corn starch, it’s odorless and vacuum sealed to avoid bubbles.
  • Strong Compatibility: Works with 99% of FDM 3D printers.
  • Neat Winding: Reduces the risk of tangles and jams, providing a smooth printing experience.
  • Eco-Friendly Material: Made from Polylactic Acid, a renewable resource, making it an environmentally conscious choice.
  • Easy to Store: The filament’s packaging includes a desiccant package to keep it dry, prolonging its shelf life and maintaining quality.


  • Dimensional Tolerance: While +/- 0.03mm is quite precise, some highly specialized printing projects might require even tighter tolerances.
  • Temperature Sensitivity: The recommended printing temperature range (200-230°C) might not be compatible with all 3D printers, especially older models or those with limited temperature settings.

2. SUNLU AntiString PLA Filament (Matte Light Blue)


  • AntiString Technology: Reduces stringing for a cleaner finish.
  • Clog-Free & Bubble-Free: Ensures smooth printing without interruptions.
  • Compatibility: Suitable for beginners and experts, and works with most standard FDM 3D printers.
  • Dimensional Accuracy: +/- 0.02mm, providing high-quality prints.
  • Vacuum Sealed Packaging: Maintains the filament quality by preventing moisture absorption.
  • Enhanced Aesthetic Quality: The AntiString technology ensures a smoother and cleaner finish, ideal for detailed and intricate designs.
  • Versatility: Suitable for a wide range of printing projects, from professional designs to DIY crafts.


  • Bed Adhesion: May require glue for better bed adhesion.
  • Specialized Use: The AntiString feature, while beneficial, may not be necessary for all types of prints, especially simpler designs.

3. SUNLU PLA Meta Filament (Sky Blue)


  • High-Speed Printing: 1.5 times more fluid than regular PLA for faster printing.
  • Glossy Surface & Good Adhesion: Provides brightly colored prints with excellent layer bonding.
  • Neatly Wound: Reduces tangling and breaks during printing.
  • Environmental Friendly: Made from starch raw materials derived from renewable plant resources.
  • Enhanced Mechanical Properties: The high toughness and non-brittle nature make it durable and resistant to breakage.
  • Energy Efficient: Lower printing temperatures lead to reduced energy consumption during the printing process.


  • Print Speed Adjustments: Users might need to adjust their printing strategies to accommodate the filament’s higher fluidity, which could be challenging for beginners.
  • Specific Printer Requirements: Not all printers may be optimized for this filament’s unique properties, requiring user experimentation.

4. SUNLU Rainbow PLA Filament


  • Color Variety: Includes 5 colors that change every 15-18 meters.
  • High Precision: +/- 0.02 mm dimensional accuracy for consistent prints.
  • Neat Winding: Reduces the risk of filament tangling and jams.
  • Vacuum Packed: Protects filament from moisture and dust.
  • Unique Aesthetic Appeal: The multicolor transition creates visually striking prints, perfect for artistic and decorative objects.
  • User Convenience: Easy to use and compatible with most 3D printers and pens, making it accessible for a wide range of users.


  • Color Transition Unpredictability: The color changes every 15-18 meters, which might not align perfectly with the desired design or model specifications.
  • Niche Application: The multicolor nature of the filament may not be suitable for projects requiring a consistent, single color throughout.

5. SUNLU Glow in the Dark PLA Filament (Glow Blue)


  • Luminous Effect: Contains phosphorescent materials for a glow-in-the-dark feature.
  • Dimensional Accuracy: +/- 0.02mm, suitable for almost all 1.75mm FDM 3D printers.
  • Neatly Wound: Ensures ease of use and efficiency in printing.
  • Professional R&D Team: Backed by SUNLU’s expertise in 3D printing.
  • Innovative Luminous Feature: Adds a unique glowing effect to prints, ideal for creating decorative items or toys.
  • Enhanced Print Quality: The neatly wound filament and precise diameter ensure a smooth printing experience with less risk of issues.


  • UV Light Dependency: For the best glow effect, exposure to UV light is necessary, which might not be practical in all settings.
  • Specialized Niche: The glow-in-the-dark feature, while unique, may not be necessary for many standard 3D printing projects.

6. SUNLU Marble PLA Filament


  • Marble Texture: Ideal for printing 3D buildings and ornaments with a realistic marble appearance.
  • Dimensional Accuracy: +/- 0.03mm, ensuring compatibility with a wide range of printers.
  • Professional Quality: Manufactured by a team specializing in 3D printing materials.
  • Realistic Marble Effect: Offers a distinctive and elegant finish, mimicking the appearance of real marble for sophisticated prints.
  • Wide Compatibility: Can be used with almost all 1.75mm FDM 3D printers, offering great flexibility in printer choice.


  • Aesthetic Specificity: The marble effect might not be suitable for projects where a plain or more traditional PLA appearance is preferred.
  • Print Setting Adjustments: Users may need to tweak print settings to achieve the best results with the unique texture of this filament.

7. SUNLU Real Wood Fiber PLA Filament


  • Real Wood Fibers: Contains 20% wood fibers for authentic wood texture and scent.
  • Dimensional Accuracy: +/- 0.02mm, enhancing print quality.
  • Eco-Friendly: Made from renewable plant resources.
  • Authentic Wood Feel and Scent: Creates prints with a genuine wood-like texture and aroma, enhancing the sensory experience of the printed objects.
  • Creative Applications: Ideal for printing models that benefit from a natural wood aesthetic, like decorative items or educational tools.


  • Variable Texture Handling: The wood fibers in the filament could require different handling or print settings compared to standard PLA.
  • Niche Use: The wood-like finish is specific and may not be ideal for all types of 3D printing projects.

8. SUNLU Carbon Fiber PLA Filament


  • Carbon Fiber Reinforced: Offers strength and lightweight properties.
  • Dimensional Stability: Provides warp-free printing with excellent layer adhesion.
  • Environmental Friendly: Biodegradable and RoHS compliant.
  • Enhanced Structural Integrity: The incorporation of carbon fiber provides additional strength while maintaining a light weight.
  • Aesthetic Appeal: Offers a unique, textured finish that can add a professional touch to prints.


  • Higher Printing Temperature: Requires careful temperature management.
  • Cost Consideration: Carbon fiber filaments tend to be more expensive than standard PLA, potentially impacting budget considerations.
  • Printer Wear and Tear: The abrasive nature of carbon fiber can lead to increased wear on printer nozzles and other components.

9. SUNLU High-Speed PLA Filament (Red)


  • Rapid Printing: Designed for fast printing, saving up to 70% time.
  • Efficient Cooling: Quick heat dissipation for faster curing.
  • Clog-Free and Bubble-Free: Ensures smooth printing.
  • Time Efficiency: The high flow rate significantly reduces printing time, making it ideal for rapid prototyping and high-volume printing projects.
  • Enhanced Print Reliability: Rigorous quality control ensures a high success rate in printing, reducing waste and saving time.


  • Printer Compatibility: Not all 3D printers may be able to handle the high-speed printing capabilities of this filament efficiently.
  • Temperature Sensitivity: The filament is temperature-sensitive, requiring precise control, which might be challenging for less experienced users.

10. SUNLU 3D Printer Silk Filament (Silk Light Gold)


  • Shiny Silk PLA Filament: Offers a glossy, smooth silky surface that enhances the aesthetic appeal of prints without the need for post-processing or polishing.
  • Ease of Printing: Feeds smoothly and consistently, minimizing the risk of clogging the nozzle or extruder.
  • Dimensional Accuracy: With a tolerance of ± 0.02mm, it ensures high precision in printing, leading to better quality prints.
  • Packaging: Vacuum packed with a desiccant to protect against moisture and dust, ensuring the filament remains dry and free of impurities.
  • Neatly Wound Filament: Reduces the risk of knots and breaks during printing, contributing to a smoother printing experience.


  • Limited Functional Application: While aesthetically pleasing, the silk PLA might not be as strong as other filaments like ABS or PETG for functional parts.
  • Specialized Use: More suitable for aesthetic purposes than functional prints.

11. SUNLU 3D Printer Filament PLA Plus (Black)


  • Strength: PLA Plus is noted to be substantially stronger than regular PLA, making it suitable for more functional and durable prints.
  • Neat Winding: 100% neatly wound to prevent tangling and knots, enhancing the printing efficiency.
  • Bubble/Tangle/Warping Free: Manufactured to avoid common printing problems, ensuring smoother and more reliable prints.
  • Wide Compatibility: Compatible with almost all 1.75mm FDM 3D printers, making it a versatile choice.
  • Affordable Price: With a significant discount offered, it presents good value for money.


  • Higher Printing Temperature Range: Requires a slightly higher temperature range (210°C – 235°C) which might not be suitable for all printers or environments.

SUNLU offers a diverse range of PLA filaments, each with unique properties like matte finish, glow-in-the-dark, wood fiber content, or high-speed printing capabilities.

Sunlu PETG Filament for Strength and Durability

When you need stronger, more impact-resistant prints, Sunlu PETG filaments excel. They offer enhanced mechanical properties and are less prone to warping compared to ABS. Sunlu PETG filaments are ideal for functional parts, mechanical components, and prints that require durability.

1. SUNLU PETG 3D Printer Filament (Transparent)


  • Combination of PLA and ABS Advantages: Offers the ease of use of PLA and the durability of ABS, making it a versatile choice.
  • High Dimensional Accuracy: With a tolerance of +/- 0.02mm, it ensures precision in 3D printing projects.
  • Wide Compatibility: Suitable for almost all 1.75mm FDM 3D printers due to its small diameter error.
  • Optimal Printing Settings Provided: Helps in achieving the best results with recommended nozzle and bed temperatures.
  • Spool Design: The spool size is designed to be compatible with many FDM 3D printers, facilitating easy handling and setup.


  • Higher Printing Temperature Requirements: Requires a nozzle temperature of 220-250°C, which might be higher than some printers can handle effectively.
  • Optical Clarity: The level of transparency might vary depending on print settings and model complexity.

2. SUNLU 3D Printer Filament (Black+Black)


  • Toughness-Enhanced PETG: Offers rigidity and high performance with excellent clarity and gloss, making it suitable for a variety of applications.
  • Tangle-Free and No Plugging: Ensures a smoother printing experience with consistent diameter and roundness.
  • High Precision Tolerance: With a tolerance level of ± 0.02mm, it promises high-quality prints with minimal warping and no clogging.
  • Neatly Wound Filament: The professional winding process reduces the risk of knots and breaks during printing.
  • High Compatibility and Vacuum Packaging: Suitable for 99% of FDM 3D printers and comes vacuum packed for better preservation.


  • Higher Cost: The larger 2KG spool is more expensive, which might not be ideal for those on a tight budget.
  • Higher Printing Temperatures: Requires careful temperature management for optimal results.
  • Specific Printer Requirements: Might not be suitable for all types of FDM 3D printers.

Both SUNLU PETG filaments offer high quality, precision, and compatibility with most FDM 3D printers. The transparent filament is great for projects requiring clear or translucent finishes, while the black filament provides rigidity and gloss for more robust applications.

Sunlu TPU Filament for Flexible Prints

If you’re venturing into the world of flexible prints, Sunlu TPU filaments provide excellent elasticity and layer adhesion. These filaments can be used to create phone cases, shoe soles, prosthetics, and other objects that require flexibility and rubber-like properties.

1. SUNLU 3D Printer Filament, Flexible TPU Bundle (Multicolor)


  • Variety of Colors: The bundle includes eight different colors (Black, White, Grey, Blue, Green, Orange, Red, Yellow), providing versatility for creative projects.
  • Flexible and Durable: With a Shore hardness of 95A, the TPU filament is flexible, stretchable, and resistant to abrasion, ideal for items like shoe soles or drone parts.
  • High Dimensional Accuracy: +/- 0.03mm dimensional accuracy ensures precise prints and compatibility with most 1.75mm FDM printers.
  • Ease of Printing: Adjusted for low odor and low deformation, enhancing the printing experience.
  • Neatly Wound Filament: Professionally wound to prevent knots and breaks during printing.
  • High Elasticity: Suitable for creating flexible and durable items.


  • Small Spool Size: Each spool is only 250g, which might be limiting for larger projects.
  • Specific Use Cases: More suitable for specific applications that require flexible material, which might not be universally needed.

2. SUNLU TPU Filament 1.75mm (Orange)


  • Material Quality: Made of flexible thermoplastic polyurethane, mimicking rubber-like properties, suitable for objects requiring flexibility and durability.
  • Excellent Print Quality: Known for great layer adhesion, wear resistance, and elasticity, ideal for printing keyrings, phone cases, etc.
  • Optimal Printing Settings Provided: Guidelines for nozzle and bed temperatures are helpful for achieving the best results.
  • Precise Diameter: The filament has a dimensional accuracy of +/- 0.03mm, ensuring consistent printing without clogs.
  • Large Spool Size: 1KG spool is more suitable for larger or multiple printing projects.
  • Flexibility and Durability: Ideal for printing items that require flexibility, like phone cases or insoles.


  • Slow Printing Speed Requirement: Recommended slower printing speed might extend the time required to complete projects.
  • Printing Difficulty: TPU can be more challenging to print with than PLA or ABS, requiring careful tuning of printer settings.

The SUNLU TPU filaments offer high-quality, flexible printing options suitable for a variety of creative and functional projects. The multicolor bundle is great for smaller projects or for those needing a variety of colors, while the single large spool is more practical for larger, single-color projects. Both types boast high dimensional accuracy and ease of printing, making them a good choice for both hobbyists and professionals.

Sunlu ABS Filament for Heat Resistance

When heat resistance is paramount, Sunlu ABS filaments shine. They can withstand higher temperatures compared to PLA or PETG, making them suitable for automotive parts, enclosures for electronic devices, and other applications where heat is a concern.

1. SUNLU Easy ABS Filament Bundle (8 Colors)


  • Humidity Resistance: Specially treated to minimize the impact of humidity on the filament, ensuring consistent print quality.
  • Low-Temperature Printing: Requires lower temperatures (225-235℃) compared to standard ABS, saving energy and reducing printer wear.
  • Low Shrinkage and No Cracking: Reduces warping and ensures accurate rendering of print details.
  • Strong Adhesion & No Warping: Optimized for strong bed adhesion, minimizing the risk of print failures due to shifting or falling.
  • High Strength and Toughness: Manufactured to withstand high-intensity loads and external forces, extending the service life of prints.
  • Dimensional Accuracy & Consistency: Ensures precise and consistent 3D prints with a strict control over filament diameter.
  • Beginner-Friendly: High success rate in printing, making it suitable for both beginners and experienced users.


  • Small Spool Size: Each spool is only 230g, which may be limiting for larger projects.
  • Color Variety: While offering multiple colors, the quantity of each color is limited due to the small spool size.

2. SUNLU ABS Filament (Skin Beige)


  • Durability: Strong and durable filament, ideal for printing items requiring higher heat resistance and longevity.
  • Dimensional Accuracy: +/- 0.02mm accuracy ensures high-quality prints and compatibility with most 1.75mm FDM 3D printers.
  • Spool Design: Sized to fit many FDM 3D printers, facilitating ease of use.
  • Optimal Printing Settings Provided: Guidelines for nozzle and bed temperatures are helpful for achieving the best results.
  • Quality Raw Materials: Smooth printing with good adhesion, less stringing and warping, and no bubble formation.


  • Higher Printing Temperature: Requires a higher nozzle temperature (240-270°C), which might not be suitable for all printers.

Both SUNLU ABS filaments offer quality and precision in printing. The Easy ABS Filament Bundle is great for projects that require multiple colors in smaller quantities and is especially suitable for beginners due to its ease of use and low-temperature printing. The single-color ABS filament is ideal for durable, heat-resistant prints and offers a larger quantity for more extensive projects.

Tips for Successful 3D Printing with Sunlu Filament

Tips for Successful 3D Printing with Sunlu Filament

To ensure optimal results when using Sunlu filament, consider the following tips:

Proper Storage and Handling

Store your Sunlu filament in a dry and cool place, away from direct sunlight and moisture. This helps maintain its integrity and prevents print issues caused by moisture absorption.

Optimizing Print Settings

Experiment with different print settings such as temperature, print speed, and layer height to achieve the best results. Sunlu provides recommended settings for each filament type, serving as a useful starting point.

Bed Adhesion and Calibration

Ensure proper bed adhesion by cleaning the print surface and using adhesives or bed materials suitable for the filament. Regularly calibrate your printer to achieve accurate leveling, which contributes to successful prints.

Post-processing Techniques

If you want to enhance the aesthetics of your prints, consider post-processing techniques like sanding, painting, or using surface treatments. These techniques can bring out the best in your Sunlu filament prints.

Filament From Failed Prints


Sunlu Filament offers a wide selection of high-quality filaments for 3D printing, catering to the needs of beginners, hobbyists, and professionals alike. By understanding the different types of Sunlu filaments, their price ranges, and the factors to consider when choosing a filament, you can make an informed decision based on your specific requirements. Whether you’re creating prototypes, functional parts, or artistic designs, Sunlu Filament has a solution to bring your ideas to life.


  1. Can I use Sunlu filaments with any 3D printer?
    Sunlu filaments are compatible with most 3D printers; however, it’s essential to check the filament compatibility with your specific printer model. Refer to the manufacturer’s recommendations or user reviews to ensure a seamless printing experience.
  2. Are Sunlu filaments environmentally friendly?
    Sunlu offers PLA filaments made from renewable resources, making them biodegradable and eco-friendly. These filaments are an excellent choice for those who prioritize environmental sustainability.
  3. What is the difference between PLA and PLA+ filaments?
    PLA+ filaments, such as Sunlu PLA+, are an upgraded version of PLA. They offer increased strength, better layer adhesion, and improved printability compared to standard PLA filaments.
  4. Can I mix different colors of Sunlu filaments for multi-colored prints?
    Yes, you can achieve multi-colored prints by manually swapping filaments during the printing process. This technique allows you to create vibrant and visually appealing models using Sunlu filaments.
  5. How do I store Sunlu filaments properly?
    To ensure the longevity of your Sunlu filaments, store them in a dry and cool environment, away from moisture and direct sunlight. Consider using airtight containers or vacuum-sealed bags to prevent moisture absorption.


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Daniel Brooks

Join me the author of Explore 3D Print, on an exhilarating journey through the captivating world of 3D. Discover the endless possibilities of 3D printing and immerse yourself in a vibrant community of enthusiasts. Explore, learn, and unlock the limitless potential of this fascinating realm.

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