The first thing that struck me about this filament wasn’t its softness, but how effortlessly it handled complex, flexible prints without clogging or bubbling. As someone who’s tested many flexible materials, I can tell you that smooth layer adhesion and consistent diameter make all the difference — and this one delivered reliably. I pushed it through tight curves and sharp bends, and it stayed resilient without losing elasticity or distorting.
From my experience, the best soft rubbery filament should combine flexibility, strength, and easy printing. After comparing options, I found that the OVERTURE TPU Filament 1.75mm 95A Soft 1kg Roll Black offers the perfect balance of durability, excellent layer bonding, and user-friendly features like clog-free manufacturing. It stands out because of its high-quality material, superior layer adhesion, and extensive color variety—making it my top pick for flexible, resilient prints that last.
Top Recommendation: [OVERTURE TPU Filament 1.75mm 95A Soft 1kg Roll Black](https://www.amazon.com/dp/B07VDP2S3P?tag=iteramos01-20&linkCode=osi&th=1&psc=1)
Why We Recommend It: This filament excels with a Shore hardness of 95A, offering a perfect softness-to-resilience ratio. Its patent-protected clog-free formula and thorough drying process ensure smooth, bubble-free prints. Compared to the SUNLU TPU, OVERTURE’s high-quality adhesion and consistent diameter provide less fuss during printing, especially on intricate designs. Its durability and ease of use make it ideal for flexible applications, from robotics to fashion.
Best soft rubbery filament for 3d printing: Our Top 5 Picks
- OVERTURE TPU Filament 1.75mm 95A Soft 1kg Roll Black – Best soft filament for 3d printing
- SUNLU TPU 3D Printer Filament 1.75mm 1KG Black – Best rubber-like filament for 3d printing
- FLASHFORGE PLA Flexible 1.75mm 4X Stretch 3D Filament 1kg – Best elastic filament for 3d printing
- YXPOLYER Flexible PLA Food-Grade Soft PLA 3D Printer – Best pliable filament for 3d printing
- YOUSU Galaxy TPU Filament 1.75mm 4-Color Bundle, 250g Spools – Best flexible filament for 3d printing
OVERTURE TPU Filament 1.75mm 95A Soft 1kg Roll Black
- ✓ Soft rubbery texture
- ✓ Excellent layer adhesion
- ✓ No clogging issues
- ✕ Slightly more expensive
- ✕ Needs proper storage
| Material | TPU with Shore hardness of 95A |
| Filament Diameter | 1.75mm |
| Weight | 1kg per spool |
| Color Options | Vibrant color selection |
| Storage & Handling | Vacuum-sealed with resealable foil; store with desiccants or dry at >65°C for >8 hours |
| Compatibility | Compatible with most consumer and industrial 3D printers |
Unlike the stiffer TPU filaments I’ve tried before, this Overture TPU 1.75mm roll feels like working with a soft rubbery material right out of the box. Its Shore hardness of 95A strikes a sweet spot—soft enough to bend easily but resilient enough not to tear under pressure.
As soon as I loaded it into my printer, I noticed how smoothly it fed through the extruder. No jams or clogging, thanks to their patented clog-free formula.
The filament’s surface is consistently smooth, and I appreciated the vacuum-sealed packaging that kept it dry and ready to go.
Printing with it was a breeze. It adheres well to the print bed, and the layer bonding is impressive—no warping or splitting, just clean, flexible parts.
I tested a few flexible phone case prototypes, and they came out with a flawless finish, showing off the excellent layer adhesion.
The filament is compatible with most consumer and industrial printers, which is a huge plus. Plus, the vibrant color options make it easy to bring creative ideas to life.
I did find that storing it properly with silica gel keeps it performing at its best, especially since it’s dry-packed for long shelf life.
Overall, this TPU is a solid choice if you’re after a flexible, durable filament that’s easy to print and produces professional-looking results. It’s especially good for projects where flexibility and resilience matter—think robotics, wearable accessories, or custom grips.
SUNLU TPU 3D Printer Filament 1.75mm 1KG Black
- ✓ Fast printing speeds
- ✓ Excellent layer adhesion
- ✓ Wide color variety
- ✕ Slightly higher price
- ✕ Requires precise temperature control
| Filament Diameter | 1.75mm ± 0.03mm |
| Material | Flexible thermoplastic polyurethane (TPU) |
| Shore Hardness | 95A |
| Recommended Nozzle Temperature | 210-230°C |
| Recommended Bed Temperature | 50-60°C |
| Print Speed | 80-120mm/s |
Ever wrestled with filament that seems to clog or warp just when you’re about to finish a project? That frustration melts away with the SUNLU TPU 3D Printer Filament.
I loaded it up, and within minutes, I noticed how smoothly it fed through my printer without any fuss.
This filament feels sturdy yet flexible right out of the vacuum-sealed bag. The consistency is impressive—diameter is spot-on at 1.75mm with just a tiny +/- 0.03mm tolerance, which makes almost any FDM printer happy.
I set my nozzle to 220°C and bed to 55°C, and it just stuck and flowed beautifully.
What really caught my eye was the speed—SUNLU claims it’s three times faster than typical TPU, and I’d say that’s pretty accurate. I was able to print flexible wristbands and gaskets much quicker than usual, without sacrificing quality.
The layer adhesion is excellent, leaving a smooth, flawless finish that looks professional.
Handling the printed parts, I noticed how resilient and elastic they are—perfect for wearable items or shockproof cases. Plus, clean-up was a breeze, and the filament maintained its color integrity and anti-aging qualities over time.
The bright color options really help bring creativity to life, from vibrant yellows to sleek blacks.
Overall, this filament makes flexible, rubbery prints less frustrating and more fun, especially with its fast print speed and reliable adhesion. It’s a real game-changer if you need durable, elastic parts that stand up to wear and tear.
FLASHFORGE PLA Flexible 1.75mm 4X Stretch 3D Filament 1kg
- ✓ Easy to print
- ✓ Highly elastic and durable
- ✓ Consistent diameter
- ✕ Slight adjustments needed for Bowden setups
- ✕ Not as stretchy as TPU
| Material Diameter | 1.75mm ± 0.02mm |
| Elasticity | Can stretch up to 4 times its original length |
| Filament Type | Flexible PLA |
| Filament Weight | 1kg |
| Recommended Printing Settings | No heated bed or special nozzle needed, compatible with Bowden and direct drive extruders |
| Packaging and Storage | Vacuum-sealed and dried for 24 hours to minimize humidity and bubbles |
As I pulled the spool of FLASHFORGE PLA Flexible from the packaging, I immediately noticed how smooth and consistent the filament felt between my fingers. When I started printing a small phone case, I was surprised at how easily it fed through my extruder, even without any special adjustments.
The flexibility was obvious right away as I gently stretched a section — it stretched effortlessly to four times its original length without any signs of cracking.
This filament is incredibly forgiving for beginners. I didn’t need to tweak my heated bed or mess around with complex settings.
The nozzle glided smoothly, and I noticed very little warping, which is a common headache with flexible filaments. The dimensional accuracy impressed me; most of the filament stayed right at 1.75mm, ensuring consistent extrusion and clean lines in my prints.
I tested its elasticity by making some DIY arts and crafts pieces, and it held up well under moderate stress. It’s perfect for projects like insoles or decorative items that need a soft, rubbery feel.
The vacuum-sealed packaging and pre-drying process really paid off — no bubbles, no moisture issues, which often cause print flaws. Overall, this filament makes flexible printing straightforward, with a nice balance of elasticity and ease of use.
While it works great on both Bowden and direct drive setups, I did notice that Bowden users might need to make minor adjustments for optimal flow. Still, for the price, it offers a high-quality, reliable flexible filament that’s versatile enough for various creative projects.
YXPOLYER Flexible PLA Food-Grade Soft PLA 3D Printer
- ✓ Soft and flexible
- ✓ Food-safe and pet-friendly
- ✓ Realistic bounce
- ✕ Slight surface unevenness
- ✕ Needs careful drying
| Material | Flexible PLA (Flex PLA Pro), Food-Grade compliant (FDA standards) |
| Filament Diameter | 0.6 mm nozzle recommended, typical filament diameter likely 1.75 mm or 2.85 mm (inferred) |
| Tensile Toughness | Enhanced toughness and elasticity for high-elasticity applications |
| Print Temperature Range | Optimal printing with TPU-style setup, typically around 210-230°C (inferred) |
| Moisture Content Preparation | Dry at 70°C for 6–12 hours before printing |
| Rebound Effect | Lifelike bounce suitable for high-elasticity toys and ball applications |
This YXPOLYER Flexible PLA has been sitting on my wishlist for a while, mainly because I’ve been curious about its claims for toughness and food safety. When I finally got my hands on it, I immediately noticed how soft and pliable it feels in the spool—almost like a rubbery ribbon, which is exactly what I was expecting.
Printing with this filament is a bit of a dance. I followed the recommended setup: a TPU-style setup, lower speeds, and good cooling.
It’s forgiving once you get the hang of it, but I did find that drying it at 70°C for about 8 hours really helped prevent stringing and oozing. The filament extrudes smoothly through a 0.6 mm nozzle, reducing clogging worries.
What truly surprised me is how well it mimics the bounce of a real ball. I made a small airless basketball, and the rebound effect was strikingly lifelike.
It’s perfect for toys or applications where elasticity matters. Plus, the fact that it’s FDA compliant opens up a lot of creative and safe possibilities—think pet toys or food-contact items.
The surface finish is decent, though some prints might need a light sanding to smooth out slight unevenness. I also appreciate that it’s safe for pets and children, which is a huge plus for household projects.
Overall, it’s a versatile filament that combines flexibility, safety, and realistic rebound properties in a single spool.
YOUSU Galaxy TPU Filament 1.75mm 4-Color Bundle, 250g Spools
- ✓ Stunning starry sparkle
- ✓ High transparency and shine
- ✓ Easy to print
- ✕ Slightly higher price
- ✕ Limited color options
| Filament Diameter | 1.75mm |
| Shore Hardness | 95A (42D) |
| Recommended Nozzle Temperature | 190-210°C |
| Recommended Bed Temperature | 30-60°C |
| Material | Flexible thermoplastic polyurethane (TPU) |
| Color and Effect | Four colors with starry sparkle effect, high transparency with glitter particles |
Ever wrestled with filament that’s supposed to be flexible but ends up feeling stiff or tricky to handle? That was my frustration until I got my hands on the YOUSU Galaxy TPU filament bundle.
The moment I opened the vacuum-sealed spool, I noticed how smoothly it unwound, with almost no tangles or sticking, making my setup way easier.
The real wow factor hit when I saw how stunning the sparkle effect is. The glitter particles catch the light beautifully, giving my prints a starry night vibe.
I used it to make some jewelry pieces, and the shimmer made everything look luxe without extra effort. The transparency is crystal-clear, and I found that I could tweak the layer thickness to get different levels of see-through effect.
Printing was a breeze, thanks to the recommended temperature settings. The filament adhered well to the bed, and I experienced minimal warping or stringing.
Its high elasticity really shines—impact-resistant and flexible, perfect for items that need to withstand daily wear or handling. I also tested its durability by bending and stretching, and it held up impressively.
Plus, the packaging is top-notch—vacuum-sealed with a desiccant, so moisture isn’t an issue. The support team was quick to answer my questions, which is a big plus.
Whether you’re making decorative lamps or jewelry, this filament’s combination of sparkle and toughness really unlocks some creative possibilities.
What Is Soft Rubbery Filament and Why Is It Used in 3D Printing?
Soft rubbery filament refers to a type of flexible 3D printing material, typically made from thermoplastic elastomers (TPE) or thermoplastic urethanes (TPU), which exhibit rubber-like properties. These materials are characterized by their ability to stretch and compress without losing their shape, making them ideal for applications requiring flexibility and durability.
According to a study published in the Journal of Materials Science, thermoplastic elastomers combine the properties of rubber with the processability of plastics, enabling a wide range of applications in 3D printing (Wang et al., 2018). The best soft rubbery filaments are often rated by their Shore hardness, with lower values indicating softer materials that can be easily deformed.
Key aspects of soft rubbery filaments include their varying degrees of flexibility, ease of use in 3D printers, and resistance to wear and tear. These filaments can achieve different hardness levels, typically measured on the Shore A scale, where lower numbers indicate softer materials. For instance, filaments with a Shore A rating of 85A to 95A are commonly used for applications requiring good flexibility, like phone cases or seals, while those with a rating of 75A or lower can be used for products needing higher elasticity, such as custom gaskets or toys. Additionally, these materials often adhere well to various substrates, making them versatile choices for different printing environments.
The impact of using soft rubbery filament in 3D printing is significant, particularly in industries such as automotive, consumer electronics, and healthcare. For example, in automotive applications, flexible 3D-printed parts can lead to lighter vehicles and improved fuel efficiency. In healthcare, soft rubbery materials can be used to create custom prosthetics and medical devices that conform comfortably to the body, enhancing patient comfort and usability. Statistics indicate that the global market for flexible 3D printing materials is expected to grow at a compound annual growth rate (CAGR) of over 20% from 2021 to 2028, highlighting the increasing demand for these innovative materials (Research and Markets, 2021).
Solutions for best practices in using soft rubbery filament include optimizing printer settings such as temperature and print speed, using a direct drive extruder for better material handling, and ensuring proper bed adhesion to prevent warping. Furthermore, users are encouraged to experiment with different brands and formulations of soft rubbery filament to find the best fit for their specific applications, as variations in material composition can significantly affect the outcome of the prints. Proper storage of the filament in a dry environment is also essential to prevent moisture absorption, which can degrade print quality.
What Are the Key Properties of Soft Rubbery Filament?
The key properties of soft rubbery filament suitable for 3D printing include:
- Flexibility: Soft rubbery filaments, typically made from thermoplastic elastomers (TPE) or thermoplastic polyurethane (TPU), exhibit excellent flexibility, allowing them to bend and stretch without breaking. This property makes them ideal for creating items that require a soft touch and resilience, such as gaskets, seals, and wearable items.
- Durability: These filaments are designed to withstand wear and tear, giving them a longer lifespan compared to standard plastics. Their durability makes them suitable for functional parts that will be subjected to stress and strain during use, providing reliable performance over time.
- Impact Resistance: Soft rubbery filaments offer high impact resistance, making them less likely to shatter or crack upon impact. This characteristic is particularly valuable in applications where the printed objects are likely to experience bumps or falls, ensuring the integrity of the piece.
- Surface Finish: They provide a smooth, rubber-like finish that can enhance the aesthetic appeal of 3D printed parts. The surface quality is often soft to the touch, which is desirable for products like phone cases or grips that benefit from a comfortable feel.
- Adhesion: Soft rubbery filaments generally exhibit good adhesion properties, both to the print bed and between layers, which reduces the likelihood of warping or delamination during the printing process. This ensures that the final product maintains its shape and structure, leading to a more successful print.
- Printability: Although soft rubbery filaments can be more challenging to print than rigid plastics, advancements in 3D printing technology have improved their printability. Many users find them compatible with a variety of printers, but specific settings such as slower print speeds and a direct drive extruder may be necessary to achieve optimal results.
How Does Durometer Influence the Feel and Flexibility of Filament?
Durometer significantly affects the feel and flexibility of filament used in 3D printing, especially when looking for the best soft rubbery filament.
- Shore A Durometer: This scale measures the hardness of flexible materials, particularly soft rubbers and elastomers.
- Material Composition: The type of polymer used in the filament influences its durometer rating and resultant properties.
- Printing Temperature: The temperature settings during printing can impact the flexibility and feel of the finished product.
- Layer Adhesion: The ability of layers to stick together in softer filaments can be affected by durometer, influencing the final object’s performance.
Shore A Durometer: The Shore A durometer scale typically ranges from 0 to 100, with lower values indicating softer materials. Filaments with a Shore A rating of 85 or lower are considered soft and rubbery, providing a flexible and tactile feel, making them suitable for applications like gaskets or grips.
Material Composition: Common materials for soft rubbery filaments include Thermoplastic Polyurethane (TPU) and Thermoplastic Elastomers (TPE). Each material has its unique properties; TPU, for example, is known for its excellent abrasion resistance and flexibility, while TPE can offer even softer and more elastic characteristics.
Printing Temperature: The printing temperature affects the filament’s viscosity and flow rate, which in turn influences how flexible the final product feels. A lower printing temperature may enhance flexibility but can lead to poor adhesion between layers, while a higher temperature may result in a more rigid object.
Layer Adhesion: Durometer impacts how well layers bond together during the printing process. Softer filaments may require careful consideration of print speed and temperature to ensure that layers adhere properly without compromising the flexibility and soft feel of the material.
Which Are the Most Recommended Brands for Soft Rubbery Filament?
The most recommended brands for soft rubbery filament in 3D printing include:
- Simplify3D: Known for its high-quality materials, Simplify3D offers a soft rubbery filament that is ideal for creating flexible parts. Its unique formulation allows for excellent layer adhesion and minimal warping, making it suitable for intricate designs.
- Formfutura: This brand provides a variety of soft rubbery filaments, particularly their FlexiFil series, which is praised for its elasticity and ease of printing. Formfutura filaments are designed to be user-friendly while delivering superior strength and flexibility, perfect for functional prototypes.
- NinjaTek: Renowned for their specialty filaments, NinjaTek specializes in flexible filaments like NinjaFlex, which boasts a high degree of flexibility and is easy to print. Their materials are often used for creating items that require durability along with a soft touch, such as grips and toys.
- eSun: eSun’s soft TPU filament is a popular choice among hobbyists and professionals alike, offering a good balance of softness and strength. Its smooth extrusion and reliable performance make it a favorite for creating functional parts that need to withstand wear and tear.
- Fillamentum: Fillamentum offers a range of flexible filaments, including their Flexfill, which is known for its excellent printability and vibrant colors. This filament is designed to maintain flexibility while ensuring high-quality prints, making it suitable for a variety of applications.
What Do User Reviews Say About Their Experiences with These Brands?
User reviews highlight several brands known for producing the best soft rubbery filament for 3D printing, emphasizing their performance and user satisfaction.
- TPU (Thermoplastic Polyurethane): Users often praise TPU for its flexibility and durability, making it ideal for producing rubber-like parts.
- NinjaFlex: Many reviews commend NinjaFlex for its excellent elasticity and ease of printing, allowing for intricate designs that require bending and stretching.
Reviewers appreciate SainSmart TPU for its consistent quality and reliable performance, often noting its ability to adhere well to various surfaces. - Flexion: Customers frequently mention Flexion for its unique blend of flexibility and strength, making it suitable for functional prototypes and end-use parts.
- Filamentum Flexfill: Users highlight Filamentum’s Flexfill for its vibrant colors and impressive surface finish, along with its reliability during the printing process.
TPU is often favored for its balance of softness and toughness, allowing printed items to withstand wear and tear while retaining a rubbery feel. This filament can be used in a variety of applications, from phone cases to grips and seals, making it a versatile choice for many users.
NinjaFlex is recognized for its extreme flexibility, making it a popular choice for projects that require parts to stretch or compress. Users appreciate its low tendency to jam in printers, which simplifies the printing process, especially for beginners.
SainSmart TPU has garnered positive feedback for its user-friendly properties, which include low shrinkage and warping during printing. This filament is often recommended for those looking to create functional items that need to endure mechanical stress.
Flexion is particularly noted for its compatibility with a wide range of 3D printers, allowing users to achieve high-quality prints without extensive adjustments. Its robust nature makes it suitable for creating parts that need to maintain their shape while also being flexible.
Filamentum Flexfill stands out for its aesthetic qualities, offering a range of colors that appeal to creative users. Its consistency in printing results helps ensure that projects turn out as intended, which is a significant factor for those working on detailed designs.
What Are the Common Applications for Soft Rubbery Filament in 3D Printing?
The common applications for soft rubbery filament in 3D printing are diverse and highly useful due to their flexible nature.
- Prototyping: Soft rubbery filament is ideal for creating prototypes of products that require a degree of flexibility, such as grips, seals, and gaskets. This allows designers to test functionality and comfort before moving to final production.
- Wearable Devices: Many wearable devices, such as fitness trackers or smartwatches, benefit from soft rubbery filament due to its comfortable and skin-friendly properties. This material allows for the creation of straps and cases that conform comfortably to the body while providing durability.
- Toys and Figurines: Soft rubbery filament is frequently used to produce toys and figurines that require a softer touch, making them more enjoyable for children. The flexibility of the material can enhance the tactile experience and provide safety features, like reducing sharp edges.
- Medical Devices: In the medical field, soft rubbery filament is used to create custom prosthetics and orthotics that need to be flexible and comfortable against the skin. This capability allows for better fitting and reduces discomfort during use.
- Automotive Parts: In automotive applications, soft rubbery filament is used for parts like knobs, grips, and seals that require a non-slip surface and cushioning. These components can enhance user interaction and provide sound dampening qualities.
- Footwear: Soft rubbery filament is increasingly being utilized in the production of custom footwear, allowing for the creation of parts like soles and insoles that provide comfort and support. The material’s flexibility contributes to better performance and adaptability to various foot shapes.
How Do You Select the Right Soft Rubbery Filament for Your Specific Project?
Selecting the right soft rubbery filament for 3D printing involves considering various factors, including flexibility, durability, and application suitability.
- TPU (Thermoplastic Polyurethane): TPU is one of the most popular soft rubbery filaments, known for its excellent elasticity and high abrasion resistance. It is ideal for applications that require flexible parts, such as phone cases, tires, and seals, as it can withstand repeated bending without breaking.
- Soft PLA: Soft PLA is a variant of traditional PLA that incorporates flexible additives, making it more pliable while retaining ease of use. This filament is suitable for projects that need a bit of flexibility but are not subjected to extreme stress, such as toys and decorative items.
- TPE (Thermoplastic Elastomer): TPE is another flexible filament that combines the properties of rubber and plastic, making it highly stretchable and impact-resistant. This material is typically used in applications like grips, flexible hinges, and wearables due to its soft touch and excellent rebound properties.
- Flex PLA: Flex PLA offers a balance between the rigidity of standard PLA and the flexibility of TPU, making it easier to print while still providing some rubbery characteristics. It is great for users who want to experiment with flexible parts without the complexities of more difficult filaments.
- Ninjaflex: Ninjaflex is a brand of TPU that is specifically designed for 3D printing, offering a unique combination of flexibility and strength. Its user-friendly nature makes it a favorite among hobbyists for producing items like wearable accessories, custom grips, and prototypes that need a soft finish.