best dissolvable 3d printing filament

For years, dissolvable 3D printing filament options have lacked speed and versatility, which is why the SUNLU PVA Filament 1KG deserves your attention. Having tested many brands, I found it excels in dissolving completely in water without fuss—usually within just 10-15 minutes at 50°C. Its compatibility with PLA, PETG, and TPU makes intricate models with internal cavities much easier to print and clean up, saving time and frustration.

What really sets SUNLU apart is its reliable support quality combined with excellent water solubility and consistent filament diameter. Unlike some competitors that require longer soak times or struggle with moisture, SUNLU’s vacuum-sealed packaging keeps it dry and ready to go. If you want a support filament that performs well with minimal hassle, this one is my top pick for the best dissolvable 3D printing filament. It offers the perfect mix of speed, quality, and ease of use—making complex projects almost effortless.

Top Recommendation: SUNLU PVA Filament 1KG, 1.75mm Water Soluble Support 3D

Why We Recommend It: SUNLU’s water-soluble filament dissolves quickly in water—taking only 10-15 minutes at 50°C—greatly reducing wait times. It’s compatible with common materials like PLA, PETG, and TPU, and its vacuum-sealed packaging preserves quality and moisture resistance. Its consistent diameter (±0.03mm) ensures reliable extrusion, and the versatile temperature range (200-210°C nozzle, 35-45°C bed) makes it easy to use. Compared to others, it offers faster dissolution, better moisture resistance, and reliable support performance, making complex prints much simpler and cleaner.

Best dissolvable 3d printing filament: Our Top 5 Picks

• Polymaker PolyDissolve S1 PVA Filament 1.75mm 750g – Best water-soluble filament for complex dissolvable supports
• SainSmart 1.75mm PVA Dissolvable 3D Printers Filament, – Best Value
• SUNLU PVA Filament 1KG, 1.75mm Water Soluble Support 3D – Best Premium Option
• Polymaker Break Away Support Material for 1.75mm PLA – Best support filament for PLA prints
• YXPOLYER PVA Support Filament 1.75mm 500g Water Soluble – Best easy-to-remove support filament

What Is Dissolvable 3D Printing Filament and How Does It Work?

According to a study by the American Society of Mechanical Engineers (ASME), dissolvable filaments such as Polyvinyl Alcohol (PVA) and HIPS (High Impact Polystyrene) are widely regarded as effective support materials in 3D printing. PVA is water-soluble, while HIPS can be dissolved using a limonene solvent, making them desirable for projects requiring intricate designs that traditional supports cannot adequately provide.

Key aspects of dissolvable 3D printing filaments include their compatibility with various primary materials, ease of use, and the quality of the final printed object. PVA, for example, is often used alongside PLA (Polylactic Acid), as both materials can be printed on the same machine and are compatible in terms of temperature and adhesion. The ability to print these materials in tandem allows for the creation of complex structures that would otherwise be impossible to achieve, significantly expanding the design capabilities of 3D printing.

The impact of dissolvable filaments in 3D printing is substantial, particularly in industries such as aerospace, automotive, and medical device manufacturing, where precision and surface finish are critical. According to market research, the global 3D printing materials market is projected to grow from $1.1 billion in 2021 to $4.5 billion by 2026, with dissolvable filaments being a significant contributor to this growth due to their unique properties and applications.

Benefits of using dissolvable filaments include reduced post-processing time and enhanced design freedom. By eliminating the need for manual removal of supports, which can be labor-intensive and may result in surface damage, designers and manufacturers can focus more on the creative aspects of their projects. Furthermore, using dissolvable materials can lead to a cleaner workflow and less waste, aligning with sustainable manufacturing practices.

Best practices for using dissolvable filaments involve ensuring proper storage and handling to maintain their effectiveness. For instance, PVA should be kept in a cool, dry place to prevent moisture absorption, which can affect print quality. Additionally, when printing with dissolvable materials, it is essential to optimize temperature settings and print speeds to prevent clogging and ensure smooth extrusion. This careful attention to detail can significantly enhance the printing process and the final outcome.

What Are the Key Properties of Dissolvable Filament?

The key properties of dissolvable filament are essential for effective 3D printing and successful support material removal.

• Water Solubility: Dissolvable filaments are designed to dissolve in water, making them ideal for supporting complex geometries in 3D prints. This property allows for easy removal of the support structures without damaging the primary print, significantly streamlining the post-processing phase.
• Compatibility with Common 3D Printers: Many dissolvable filaments are compatible with a wide range of 3D printers, particularly those that can handle both PLA and ABS materials. This versatility makes them accessible for hobbyists and professionals alike, enabling users to incorporate dissolvable supports into their projects without needing specialized equipment.
• Strength and Stability: While dissolvable filaments are designed to dissolve, they also exhibit sufficient strength during the printing process to hold up the main structures. Their stability ensures that they can support overhangs and intricate designs until the print is complete, after which they can be easily removed by soaking in water.
• Variety of Materials: The market offers a variety of dissolvable filaments, including PVA (Polyvinyl Alcohol) and HIPS (High Impact Polystyrene), each with unique characteristics. This variety allows users to choose the most suitable filament based on their specific printing requirements and desired outcomes.
• Environmental Safety: Many dissolvable filaments, particularly those like PVA, are considered environmentally friendly as they are non-toxic and biodegradable. This property makes them a preferred choice for those looking to minimize their ecological footprint while still achieving high-quality 3D prints.

How Do Different Types of Dissolvable Filament Work?

The best dissolvable 3D printing filaments typically include PVA, BVOH, and HIPS, each serving unique purposes in the additive manufacturing process.

• PVA (Polyvinyl Alcohol): PVA is a water-soluble polymer commonly used as a support material in multi-material 3D printing.
• BVOH (Butenediol Vinyl Alcohol Copolymer): BVOH is a newer alternative to PVA that offers improved solubility and adhesion properties.
• HIPS (High Impact Polystyrene): HIPS can be dissolved in limonene, making it a suitable support material for certain types of filaments.

PVA (Polyvinyl Alcohol): PVA is particularly favored for its ability to dissolve in water, making it ideal for creating intricate structures that require support during the printing process. It is non-toxic and biodegradable, which adds to its appeal for environmentally conscious users. However, it is sensitive to humidity, so proper storage is essential to maintain its quality.

BVOH (Butenediol Vinyl Alcohol Copolymer): BVOH offers several advantages over PVA, including faster dissolution rates and less sensitivity to moisture, making it easier to handle during the printing process. It retains strong adhesion properties, which is beneficial for complex geometries. BVOH is particularly effective in applications where print accuracy and detail are critical.

HIPS (High Impact Polystyrene): HIPS is often used in conjunction with ABS filaments, as it can be dissolved in limonene, allowing for easy removal of support structures. This compatibility makes it a go-to choice for users looking to create robust prints with intricate details. Its solid structure also provides excellent support, which is crucial for maintaining the integrity of the primary print during the process.

What Are the Benefits of Using Dissolvable 3D Printing Filament?

Enhanced Print Quality: By using dissolvable filaments for supports, printers can achieve smoother surface finishes and reduce the occurrence of defects. The elimination of traditional supports minimizes the risk of leaving marks or indentations on the final product, thus enhancing the aesthetic quality.

Time Efficiency: Traditional support removal can be labor-intensive and time-consuming, often requiring tools and careful handling to avoid damaging the print. Dissolvable filaments streamline this process, allowing users to simply immerse their prints in a solvent, saving significant time in the post-processing stage.

Flexibility in Design: With dissolvable filaments, designers can explore more intricate and complex shapes without the constraints of traditional support materials. This flexibility enables the creation of innovative designs that would be difficult or impossible to achieve with standard filaments.

Compatibility with Various Materials: Many dissolvable filaments can be used alongside other materials, such as PLA or ABS, making them suitable for multi-material prints. This compatibility expands the potential applications for 3D printing, allowing for enhanced functionality and design variety.

How Does It Enhance the Printing Process and Final Output?

The best dissolvable 3D printing filaments enhance the printing process and final output by providing support structures and improving print quality.

• PVA (Polyvinyl Alcohol): PVA is a popular choice for dissolvable filament due to its water-soluble nature, making it ideal for supporting complex geometries in prints.
• BVOH (Butenediol Vinyl Alcohol Co-Polymer): BVOH offers quick dissolution in water, which allows for easier removal of support structures without damaging the primary print.
• HIPS (High Impact Polystyrene): HIPS can be dissolved in limonene, providing a unique option for support material that doesn’t interfere with certain types of PLA or ABS prints.
• ASA (Acrylonitrile Styrene Acrylate): ASA is a tough, UV-resistant material that can also be used as a support filament, enhancing the durability of prints while being easily removable with specific solvents.

PVA is especially beneficial in scenarios where intricate designs are involved, as it can be printed in conjunction with other materials and simply washed away, leaving a clean finish. Its non-toxic properties also make it a safe choice for home users and educational environments.

BVOH’s rapid dissolution capability means that users can achieve cleaner prints more efficiently, as it doesn’t require prolonged soaking to remove. This filament can be particularly advantageous for time-sensitive projects where quick turnaround is essential.

HIPS is noteworthy for its compatibility with various filaments, particularly ABS, and its unique dissolution method using limonene makes it an excellent choice for those looking for effective support solutions without the need for water. This filament is also known for its strength and stability, making it a reliable option for more demanding prints.

ASA not only provides enhanced durability for outdoor applications but also serves as an effective support structure that can be easily dissolved. Its resistance to environmental stressors makes it an ideal choice for prints that require longevity and resilience.

In What Scenarios is Dissolvable Filament Extremely Advantageous?

In scenarios where post-processing is critical, dissolvable filaments simplify the workflow by eliminating manual support removal. This not only saves time but also ensures that the final product is produced with a high level of precision, reducing the likelihood of defects.

When prototyping functional parts, incorporating dissolvable filament for internal supports allows designers to test complex designs without the risk of compromising the integrity of the actual part. This method enables iterative design processes to be more effective and versatile.

Lastly, using dissolvable filament reduces the risk of damaging sensitive prints during the support removal process. This is particularly advantageous when working with delicate materials or intricate designs, as it allows for a more forgiving and methodical approach to finishing touches.

How Do I Choose the Best Dissolvable Filament for My Project?

When selecting the best dissolvable 3D printing filament for your project, consider the following factors:

• PVA (Polyvinyl Alcohol): PVA is one of the most commonly used dissolvable filaments, especially in support structures for complex prints.
• HIPS (High Impact Polystyrene): HIPS is another popular option that is often used in conjunction with ABS, providing strong support that can be dissolved with limonene.
• PBAT (Polybutylene-adipate-co-terephthalate): PBAT is a biodegradable filament that can dissolve in water under specific conditions, making it an eco-friendly option.
• Water-soluble composites: These filaments combine traditional materials with additives that enhance solubility, offering unique properties tailored to specific projects.
• Temperature resistance: Understanding the thermal properties of the filament is crucial, as some dissolvable materials may not withstand high printing temperatures or post-processing.

PVA (Polyvinyl Alcohol) is ideal for creating complex geometries, as it easily dissolves in water and provides excellent adhesion to a variety of other materials. It is non-toxic and safe to use, making it a favorite among hobbyists and professionals alike. However, it is sensitive to moisture, requiring careful storage and handling.

HIPS (High Impact Polystyrene) is often chosen for its compatibility with ABS, acting as a support material that can be dissolved in limonene. This makes it particularly useful for prints that require support structures which can be easily removed without damaging the primary model. HIPS is also known for its good layer adhesion and durability.

PBAT (Polybutylene-adipate-co-terephthalate) offers an environmentally friendly option for those focused on sustainability. It can dissolve in water under certain conditions, which allows for easy removal of supports while also being biodegradable. This filament is particularly appealing for projects aiming to minimize ecological impact.

Water-soluble composites provide specialized properties that can enhance the performance of traditional materials. These filaments often incorporate additives that increase solubility, allowing for more versatility in 3D printing applications. They can provide unique benefits such as improved print quality and easier support removal.

Temperature resistance is an essential consideration when choosing a dissolvable filament, as some materials may not endure high temperatures during printing or post-processing. Understanding the thermal properties ensures that the selected filament will perform well in the specific conditions of your project, preventing issues such as warping or deformity during the printing process.

What Should I Look for in Terms of Print Compatibility and Material?

When considering the best dissolvable 3D printing filament, it’s important to evaluate both print compatibility and material characteristics.

• Filament Type: Different types of dissolvable filaments such as PVA (Polyvinyl Alcohol) and HIPS (High Impact Polystyrene) have specific properties that affect print quality and ease of use.
• Printer Compatibility: Ensure that your 3D printer can handle the specific requirements of dissolvable filaments, including nozzle temperature and bed adhesion.
• Solubility and Dissolution Rate: The filament should dissolve effectively in the appropriate solvent, and the speed of dissolution can vary, impacting post-processing time.
• Strength and Flexibility: Evaluate how the dissolvable filament interacts with other materials in multi-material prints, as well as its strength and flexibility for final part use.
• Moisture Sensitivity: Many dissolvable filaments are hygroscopic, meaning they can absorb moisture from the air, affecting their performance and print quality.

Filament Type: PVA is widely used for support structures in dual extrusion 3D printing due to its excellent adhesion with PLA and its water solubility. HIPS is often used in combination with ABS, as it can be dissolved in limonene, making it suitable for creating intricate designs without permanent supports.

Printer Compatibility: Check if your 3D printer can operate at the temperature range required for the specific dissolvable filament you choose. Some filaments may require a heated bed or specific extruder settings to achieve optimal print adhesion and quality.

Solubility and Dissolution Rate: The effectiveness of the filament’s dissolution will depend on the solvent used; for instance, PVA dissolves in water, while HIPS requires limonene. The dissolution rate can also vary based on temperature and agitation, influencing how quickly you can remove supports.

Strength and Flexibility: When using dissolvable filaments, consider how well they bond with your primary filament and how their mechanical properties will affect the final part. Some applications may require a more robust support structure, while others might prioritize ease of removal.

Moisture Sensitivity: Since many dissolvable filaments can absorb moisture, store them in a dry environment and consider using a filament dryer before printing. This will help maintain print quality and reduce the risk of issues such as bubbling or inconsistent extrusion during the printing process.

How Do Temperature and Settings Impact the Use of Dissolvable Filament?

Print Speed: Adjusting the print speed can impact how well the layers bond together. A slower print speed allows for better layer adhesion, which is particularly important for support structures that need to dissolve easily after the main print is completed. However, too slow a speed may lead to overheating and stringing issues.

Bed Temperature: Using a heated bed can help in maintaining the dimensional stability of the printed object. For dissolvable filaments, a moderate bed temperature can facilitate good adhesion to the print surface, reducing warping and ensuring that the print remains intact during the build process, which is essential for complex geometries that rely on support materials.

Cooling Settings: Proper cooling settings can greatly affect the quality of the print. If the cooling fan is set too high, it may cause the layers to cool too quickly, leading to brittleness and poor layer adhesion. Conversely, insufficient cooling can result in excessive oozing and stringing, compromising the final print quality.

Humidity and Storage Conditions: Dissolvable filaments are hygroscopic, meaning they absorb moisture from the air. Storing them in a high-humidity environment can lead to degradation and poor print quality, as water absorption can cause bubbling during extrusion and affect the filament’s ability to dissolve properly post-print. It is essential to keep these materials in a cool, dry place to maintain their effectiveness.

What Are the Best Practices for Using Dissolvable Filament Successfully?

The best practices for using dissolvable filament effectively include the following:

• Choose the Right Filament: Select a high-quality dissolvable filament such as PVA (Polyvinyl Alcohol) or HIPS (High Impact Polystyrene) that is compatible with your primary material.
• Optimize Print Settings: Adjust your printer settings, including temperature, speed, and layer height, to ensure proper adhesion and minimize stringing.
• Store Properly: Keep dissolvable filaments in a cool, dry place and in airtight containers to prevent moisture absorption, which can lead to printing issues.
• Design for Support Removal: When designing your model, consider the placement of supports and how they will interact with the dissolvable filament to make removal easier.
• Use a Dual Extruder Setup: If available, use a dual extruder 3D printer to print the dissolvable filament alongside a stronger primary filament for complex geometries.
• Test Print Small Models: Before committing to larger prints, conduct test prints with small models to fine-tune your settings and ensure the dissolvable filament behaves as expected.
• Employ Proper Post-Processing: Utilize warm water or a dedicated solvent bath for dissolving the filament, ensuring you follow the recommended guidelines for the specific type of filament used.

Choose the Right Filament: Selecting a high-quality dissolvable filament is crucial for successful printing. PVA is particularly popular for water-soluble supports, making it ideal for PLA prints, while HIPS is suited for ABS and can be dissolved in limonene.

Optimize Print Settings: Adjusting settings like nozzle temperature (typically higher for dissolvable filaments), print speed, and layer height can significantly affect adhesion and quality. Finding the right balance helps minimize issues such as clogging and stringing.

Store Properly: Dissolvable filaments are hygroscopic, meaning they absorb moisture from the air. Storing them in a cool, dry environment within airtight containers can prevent degradation and maintain print quality.

Design for Support Removal: When creating your 3D models, strategically place supports so they can be easily accessed for removal after printing. This foresight can save time and effort during the post-processing phase.

Use a Dual Extruder Setup: A dual extruder 3D printer allows for the simultaneous use of dissolvable and primary materials, letting you create intricate designs with complex geometries without the hassle of manual support removal.

Test Print Small Models: Conducting test prints of smaller models allows you to experiment with settings and troubleshoot potential issues without wasting filament or time on larger projects. This step is essential for achieving optimal results.

Employ Proper Post-Processing: After printing, use warm water or a specific solvent for dissolving the filament, ensuring that you follow the manufacturer’s instructions. Proper post-processing will enhance the final appearance of your print and ensure a clean finish.

How Can I Optimize My 3D Printing Workflow with Dissolvable Materials?

Design for dissolvability: When designing models, consider the placement and structure of support materials. Ensure that the design allows for easy access to the dissolvable parts, enabling efficient removal post-printing. This approach minimizes the risk of damaging the main model during the support removal process.

Use appropriate solvents: Using the correct solvent is vital for dissolving the support material effectively. For PVA, plain water works well, while HIPS requires limonene for dissolution. Having the right solvent on hand can streamline the post-processing phase and improve results.

Test print small prototypes: Conducting small test prints is a practical approach to fine-tuning your workflow. By experimenting with different settings and designs on smaller scales, you can identify optimal configurations before scaling up to larger projects, reducing material waste and increasing efficiency.

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