Siraya Tech Tenacious Highly Flexible
4.7Editor score
Soft rubber-like texture
Fast rebound elasticity
Excellent additive for mixes
In this guide
Flexible resin for 3D printing allows creators to produce parts that bend and absorb shock like real rubber. Choosing the right formula ensures your prints survive impact without snapping or deforming permanently under stress.
We analyzed ten top-rated flexible resins based on user feedback, technical specifications, and real-world performance data. Our comparison covers hardness ratings, elongation capabilities, odor levels, and compatibility with standard LCD and DLP printers.
Each pick below highlights specific strengths such as speed, durability, or ease of use for different project needs. Please note that product availability and pricing change frequently, so verify details before purchasing your next batch.
Top 3 Picks for Best Flexible Resin for 3D Printing
ANYCUBIC Ultra Tough Resin
4.7Editor score
Exceptional impact resistance
High flexibility for wearables
Gentle on skin sensation
Siraya Tech Rebound 55A
4.2Editor score
Fast rebound action
55A Shore hardness
No special cleaning required
Top 10 Best Flexible Resin for 3D Printing in 2026 Compared
The following table provides a side-by-side comparison of all ten selected flexible resins. It highlights key specifications including hardness ratings, color options, and primary use cases to help you make an informed decision quickly.
ProductsSpecificationsEditor scorePrice
Best Budget
Superflex 3D Printer Resin
80A Shore hardness
100% elongation at break
Clear color option
Fast 50um printing
4.4Editor score
Editor's Choice
ANYCUBIC Ultra Tough Resin
High flexibility
Black color option
1kg package size
Impact resistant formula
4.7Editor score
Best Premium
SUNLU Flexible 3D Printer Resin
70A Shore hardness
135% elongation
Gray color option
Minimal odor formula
3.5Editor score
Siraya Tech Tenacious Highly Flexible
Rubber-like texture
500g package size
Black color option
High impact resistance
4.7Editor score
ANYCUBIC Tough Resin 2.0
Upgraded toughness
Gray color option
Low odor formulation
1kg package size
4.6Editor score
SUNLU High Toughness Resin
Enhanced flexibility
1kg package size
Gray color option
Low shrinkage rate
4.7Editor score
ELEGOO Tough 3D Printer Resin
Shore 84.7D hardness
1000g package
Black color option
High weather resistance
4.5Editor score
Siraya Tech Rebound 55A
55A Shore hardness
1kg package size
Black color option
Fast rebound action
4.2Editor score
ANYCUBIC Tough Resin 2.0
High precision
Clear color option
Low odor formula
Exceptional stretch
4.6Editor score
Flexible & Upgraded Tough Resin
90A Shore hardness
1000g package
Black color option
High tear resistance
4.4Editor score
1. ANYCUBIC Ultra Tough Resin – Best Overall Flexible Resin for 3D Printing
ANYCUBIC Ultra Tough Resin
High impact resistance
Exceptional flexibility
Non-irritating skin feel
Compatible with LCD printers
The ANYCUBIC Ultra Tough Resin stands out as the top choice for makers needing both strength and flexibility. With a 4.7 rating from users, it delivers exceptional resilience that recovers original shape after external forces.
Pros
- Swift recovery after deformation
- Smooth hair-like texture detail
- Safe for wearable models
- Adds toughness to other resins
Cons
- May affect final color
- Higher price point
We may earn a commission when you buy through this link, at no additional cost to you.
Its capacity for swift recovery ensures that printed parts do not deform permanently. This makes it ideal for articulated models where parts need to move seamlessly without snapping or cracking under stress.
While it performs well as a standalone material, it can also serve as an additive. When blended with other resins, it enhances durability, though users should note potential color shifts when mixing different hues.
Anyone looking for daily wearable models like earphone covers will appreciate the gentle skin sensation. Its robust adaptability and resistance to brittleness make it a reliable choice for diverse 3D printing needs.
Superior Wearability
Upon curing, it ensures a non-irritating experience on the skin for better comfort.
Enhanced Durability
It exhibits remarkable resistance to brittleness, softening, and corrosion in high humidity.
We may earn a commission when you buy through this link, at no additional cost to you.
2. Siraya Tech Tenacious Highly Flexible – Best Budget Flexible Resin for 3D Printing
Siraya Tech Tenacious Highly Flexible
Soft rubber-like texture
Significantly faster rebound
High impact resistance
Specialized for soft grips
Siraya Tech Tenacious Flex Black offers a significantly softer and more rubber-like experience than its classic counterpart. This new formulation provides faster rebound and incredible elasticity for resilient prints.
Pros
- Faster rebound than classic
- Incredible elasticity
- Protects models from drops
- Boosts impact in mixes
Cons
- Not suitable for all uses
- Small 500g pack size
We may earn a commission when you buy through this link, at no additional cost to you.
It withstands extreme bending and compression, quickly returning to its original shape. The combination of strength and flexibility ensures that accidental drops or impacts do not cause deformations or cracks.
Designed for projects requiring high flexibility, it works well for soft grips, gaskets, and shock-absorbing components. A small addition to other resins can significantly enhance the properties of prints.
Makers needing a budget-friendly option for dynamic prints will find this highly effective. Its excellent resin additive capabilities allow for boosting impact resistance and flexibility across various projects.
Dynamic Prints
Superior elasticity compared to the original Tenacious resin allows for more dynamic prints.
Additive Power
Mix with other resins to boost impact resistance and flexibility with a small addition.
We may earn a commission when you buy through this link, at no additional cost to you.
3. Siraya Tech Rebound 55A – Best Premium Flexible Resin for 3D Printing
Siraya Tech Rebound 55A
Fast rebound action
55A Shore hardness
Balanced flexibility
No special cleaning needed
Siraya Tech Rebound 55A provides significantly faster rebound than standard elastic resins. This makes it an excellent choice for applications where quick shape recovery and impact absorption are needed.
Pros
- Fastest shape recovery
- Standard LCD compatibility
- Standard alcohol cleaning
- Shock absorption focus
Cons
- Testing is ongoing
- Higher cost than others
We may earn a commission when you buy through this link, at no additional cost to you.
Initial testing shows good resilience during compression cycles. It maintains elasticity over repeated use, which is critical for prototyping shock-absorbing components and protective equipment.
It is softer than the Tenacious Flex while maintaining excellent compression properties. This balance ensures that the printed parts can flex significantly without losing structural integrity under stress.
Unlike other elastomers requiring complex processing, this resin prints on standard LCD and DLP printers. Users can clean prints with standard isopropyl alcohol methods without needing special steps.
Quick Recovery
Fast rebound action allows for excellent choice for applications where quick shape recovery is needed.
Standard Cleaning
Cleans with standard isopropyl alcohol methods unlike other elastomers requiring complex processing.
We may earn a commission when you buy through this link, at no additional cost to you.
4. Superflex 3D Printer Resin – Fast Printing Flexible Resin for 3D Printing
Superflex 3D Printer Resin
Prints 50um in 1.7s
ISO 10993-5 tested
80A Shore durometer
Saves on electricity bills
Superflex offers a balanced softness with strength to simulate rubber or TPU for hard flexible prototypes. It prints 50um layers in 1.7 seconds on monochrome LCD printers, saving on time and electricity bills.
Pros
- Fast printing speed
- Balanced softness and strength
- Certified biocompatibility
- High productivity gain
Cons
- Smaller 500g bottle
- Specific printer requirements
We may earn a commission when you buy through this link, at no additional cost to you.
With 100% elongation at break, it is well-suited for cushioning, damping, and shock absorption. This makes it ideal for parts that need to absorb impact without breaking permanently.
Properly cleaned and fully post-cured prints pass ISO 10993-5 tests. This certification is valuable for makers working on medical prototypes or parts that require biocompatibility.
Printing farms benefit from the speed, enhancing productivity by at least 40%. This resin is a strong option for those needing speed and compliance without sacrificing flexibility.
Certified Safe
Properly cleaned and fully post cured SuperFlex prints pass ISO 10993-5 test.
Productivity Boost
Super fast printing enhance the productivity of 3D printing farm by at least 40% and up.
We may earn a commission when you buy through this link, at no additional cost to you.
5. SUNLU Flexible 3D Printer Resin – Great Value Flexible Resin for 3D Printing
SUNLU Flexible 3D Printer Resin
70A Shore durometer
135% elongation
Low shrinkage rate
Minimal aromatic odor
SUNLU Flexible 3D Printer Resin offers a perfect balance of softness and strength, simulating rubber or durable flexible prototypes. It features a 70A Shore durometer and 135% elongation at break.
Pros
- Balanced softness and strength
- High impact resistance
- Smooth surface finish
- Leak-proof bottle design
Cons
- Lower rating from users
- Less flexible than others
We may earn a commission when you buy through this link, at no additional cost to you.
It provides excellent impact resistance and flexibility, making printed models durable enough to withstand drops without breaking. The smooth finish ensures a high-resolution surface that is pleasant to touch.
The resin is made of safe materials with an aromatic odor that is not pungent. This makes the printing process more comfortable for users working in home environments or workshops.
With a leak-proof bottle design and low shrinkage, it reduces waste and ensures accurate parts. It is compatible with 99% of printers on the market, including LCD, DLP, and SLA models.
Low Shrinkage
During the curing process, it has a low shrinkage rate providing accurate size and shape.
Leak Proof
SUNLU resin bottle has a leak-proof design patent strict packaging process to reduce damage.
We may earn a commission when you buy through this link, at no additional cost to you.
6. ANYCUBIC Tough Resin 2.0 – Precise Flexible Resin for 3D Printing
ANYCUBIC Tough Resin 2.0
Upgraded flexural strength
Strong elongation
Low odor formulation
Minimal shrinkage
ANYCUBIC Tough Resin 2.0 has undergone a comprehensive upgrade in terms of flexural strength. It demonstrates enhanced toughness, making it less prone to fracture when printing miniature components and thin models.
Pros
- Resistant to breakage
- Resisting peeling and stress
- Smooth surface clear details
- Environmentally friendly
Cons
- Focuses on toughness more
- Not fully soft rubber
We may earn a commission when you buy through this link, at no additional cost to you.
It exhibits formidable strength and flexibility, effectively resisting peeling, cracking, and stress marks caused by cyclic vibrations. Models are less prone to breakage even when dropped from a height.
The formulation significantly reduces volatile organic compounds, making it a green and environmentally friendly choice. It maintains a low shrinkage rate and features a low-odor composition for a calm environment.
This resin is applicable for industrial spare parts, building models, and DIY design. It is optimized for printing wavelengths between 365nm and 405nm for compatibility with most LCD printers.
Precision Printing
ANYCUBIC Tough Resin 2.0 also boasts excellent precision while maintaining a low shrinkage rate.
Low Odor
Its formulation significantly reduces volatile organic compounds, making it a green choice.
We may earn a commission when you buy through this link, at no additional cost to you.
7. SUNLU High Toughness Resin – Durable Flexible Resin for 3D Printing
SUNLU High Toughness Resin
Long-lasting toughness
Low viscosity flowability
5 times higher elongation
Improved success rate
SUNLU high toughness 3d resin has long-lasting toughness and elongation 5 times higher than regular standard resin. It has excellent flexibility and bendability, making your 3D printed models unbreakable and durable.
Pros
- Models unbreakable and durable
- Best-in-class accuracy
- Not prone to cracking
- Easy to clean
Cons
- Focuses on toughness
- Gray color limitation
We may earn a commission when you buy through this link, at no additional cost to you.
Its low viscosity and high flowability result in shorter curing time and easier model formation. With lower shrinkage, the potential for distortion is reduced, allowing for crisp, vivid detail in prints.
The R&D team focuses on improving stability, reducing volume shrinkage during curing. The printed model will not be prone to cracking after wash and curing, greatly improving the 3D printing success rate.
It offers a lower printing odor compared to other 3D resins in the market. Users can easily clean the print model with alcohol or ethanol for a comfortable printing experience.
Better Accuracy
With lower shrinkage, the potential for distortion in 3D printed models is reduced.
High Performance
Very suitable for printing high toughness models, such as structural parts, solid models, etc.
We may earn a commission when you buy through this link, at no additional cost to you.
8. ELEGOO Tough 3D Printer Resin – High Impact Flexible Resin for 3D Printing
ELEGOO Tough 3D Printer Resin
Shore hardness 84.7D
Strong damage resistance
Durable and strong impact
No cracks when drilling
ELEGOO Tough Resin has excellent flexibility and extraordinary resilience. It is easy to bend but not easy to break, can withstand certain tension and stress, and has strong damage resistance.
Pros
- Quick recovery after deformation
- Excellent resistance to brittleness
- Fine texture finish
- Wide application options
Cons
- Higher hardness rating
- Not purely soft
We may earn a commission when you buy through this link, at no additional cost to you.
The cured resin has a Shore hardness of 84.7D, exceeding that of others. It has high-strength physical properties and can withstand certain impacts. The finished resin can be drilled without cracks.
The material has a fine texture and shows excellent resistance to brittleness, softening and corrosion even in high humidity. It has high elasticity and flexibility, ensuring excellent performance under extreme temperature conditions.
Its low odor and non-irritating liquid makes producing high-quality prints more comfortable. It can be used to print end-use products, functional prototypes, tools, hangers, and artistic projects easily.
Superior Hardness
The cured resin has a Shore hardness of 84.7D, exceeding that of others.
Weather Resistant
It shows excellent resistance to brittleness, softening and corrosion even in high humidity.
We may earn a commission when you buy through this link, at no additional cost to you.
9. ANYCUBIC Tough Resin 2.0 – Precision Flexible Resin for 3D Printing
ANYCUBIC Tough Resin 2.0
Unmatched strength
Exceptional stretch
High precision prints
Industry-wide compatibility
ANYCUBIC Tough Resin 2.0 has achieved a significant enhancement in flexural strength. It now offers superior toughness, significantly reducing the likelihood of breakage when printing delicate components and thin models.
Pros
- Reduced likelihood of breakage
- Resists cyclic vibration damage
- Minimal odor
- Minimal shrinkage
Cons
- Clear color limitations
- Similar to grey version
We may earn a commission when you buy through this link, at no additional cost to you.
The resin offers exceptional strength and flexibility, effectively resisting damage caused by cyclic vibrations. Models printed with this resin are less likely to break even when subjected to drops from a height.
Its minimal odor and gentle composition pave the way for a serene and pleasant printing environment. The design focuses on drastically cutting down volatile organic compounds for user comfort.
ANYCUBIC Tough 3D Printer Resin 2.0 ensures high precision prints with minimal shrinkage. It offers versatile industrial applications and is highly compatible with different equipment and materials.
Strength Enhancements
It now offers superior toughness, significantly reducing the likelihood of breakage.
Precision Accuracy
ANYCUBIC Tough 3D Printer Resin 2.0 ensures high precision prints with minimal shrinkage.
We may earn a commission when you buy through this link, at no additional cost to you.
10. Flexible & Upgraded Tough Resin – Impact Resistant Flexible Resin for 3D Printing
Flexible & Upgraded Tough Resin
90A Shore hardness
Tough to last formula
High tear resistance
Precision and durability
This resin delivers a 90A Shore hardness that can simulate the toughness of rubber, with both softness and strength. The printed product can be folded and bent repeatedly without breaking.
Pros
- Folded and bent without breaking
- Good bending resistance
- Delivers crisp accurate prints
- Handles repeated stress
Cons
- Less soft than 70A
- Not certified biocompatible
We may earn a commission when you buy through this link, at no additional cost to you.
It offers high elongation and excellent tear resistance. It is the go-to choice for gaskets, protective cases, toy tires, shoe soles, and ergonomic grips that need to stay flexible under repeated stress.
This specialized formula keeps its cool under stress, bending where ordinary resins snap. You don't have to sacrifice detail for flexibility as it delivers crisp, accurate prints.
Works great on most LCD and DLP printers for makers, engineers, and designers. From shock-absorbing components to cosplay props, this tough, flexible resin handles it all.
Real-World Durability
The printed product can be folded and bent repeatedly without breaking, with strong tear resistance.
High Precision
You don't have to sacrifice detail for flexibility as it delivers crisp, accurate prints.
We may earn a commission when you buy through this link, at no additional cost to you.
Buying Guide – How to Choose the Best Flexible Resin for 3D Printing
Selecting the right flexible resin depends on your specific project requirements and printer type. This guide helps you evaluate key factors such as hardness, elongation, odor, and compatibility.
Shore Hardness Rating
Shore hardness determines the firmness of the printed material, usually rated on the A scale for flexible plastics. Lower numbers indicate softer, more rubber-like parts, while higher numbers suggest more durable, harder flexible prints.
Look for 70A for maximum softness and 90A for higher durability depending on your application needs.
Elongation at Break
Elongation measures how much a part can stretch before breaking, which is critical for dynamic components like springs or joints. High elongation ensures parts can bend significantly without snapping during use.
Choose resins with elongation above 100% for parts that require significant bending or movement.
Curing Speed and Wavelength
Different resins cure at different speeds and require specific UV wavelengths, typically 405nm or 365nm. Faster curing improves productivity, while matching the wavelength to your printer ensures proper solidification.
Verify your printer supports the resin's curing wavelength before purchasing to avoid print failures.
Impact Resistance
Impact resistance describes the material's ability to absorb sudden shock without fracturing. This is vital for parts used in rugged environments or functional prototypes that may face accidental drops.
Prioritize high impact resistance if your parts will be subjected to frequent drops or physical stress.
Odor and Safety
Resins release volatile organic compounds during printing that can cause strong odors and irritation. Low-odor formulations improve the working environment, especially in enclosed spaces without professional ventilation.
Check for low-odor claims and biocompatibility certifications if the prints will touch skin or internal parts.
Shrinkage and Precision
Shrinkage occurs when the resin hardens, which can lead to inaccurate dimensions or warping. Low shrinkage is essential for parts that need to fit precisely with other components or have fine details.
Select resins specifically marketed as low shrinkage if high precision is a requirement for your project.
Printer Compatibility
Not all flexible resins work well with every type of LCD, DLP, or SLA printer. Some formulas require special settings or handling to ensure proper adhesion and release from the build plate.
Ensure the product description lists compatibility with your specific printer model before buying to save time.
Post-Curing Requirements
Flexible prints often require extended post-curing to achieve their full mechanical properties and stability. The time and equipment needed for post-processing should be factored into your workflow and cost.
Consider resins that require minimal post-curing if you need finished parts quickly after printing.
How to Use and Care for Your Flexible Resin for 3D Printing
Before printing, shake the bottle gently for 30 seconds to mix any separated components. Always wear gloves and a mask to avoid skin contact or inhalation of vapors during the process.
Use a glass bottle or a dedicated resin vat designed for flexible materials to ensure durability. Flexible resins have different adhesion properties that may require adjusted peeling speeds or support structures.
Store unused resin in a cool, dark place away from direct sunlight to prevent accidental exposure or degradation. Seal the bottle tightly after every use to keep out moisture and maintain freshness.
Frequently Asked Questions
What is the best shore hardness for rubber-like 3D printed parts?
The best shore hardness depends on your needs, but 70A is typically considered the gold standard for soft, rubber-like parts. If you need something slightly harder for durability, look for 80A to 90A options instead.
Can I mix flexible resin with standard resin?
Yes, many flexible resins are designed to be used as additives for standard resins. Mixing a small percentage can improve toughness without making the print completely flexible or too soft.
Do flexible resins require special curing equipment?
Most flexible resins use standard UV curing with 405nm wavelengths like standard resins. However, they may require slightly longer post-curing times to achieve their full elasticity and durability.
Why are my flexible prints cracking after washing?
Cracking often occurs due to insufficient washing or using too much isopropyl alcohol too quickly. Ensure you wash the prints gently and allow them to dry completely before final post-curing.
Are flexible resins biocompatible?
Most flexible resins are not biocompatible unless explicitly stated. Check the product specifications for certifications like ISO 10993 to ensure safety for medical or wearable applications.
How long do bottles of flexible resin last?
Unopened bottles typically last 12 to 18 months if stored properly. Once opened, they should be used within 6 to 12 months and kept in cool, dark conditions to maintain quality.
Final Thoughts on Choosing the Best Flexible Resin for 3D Printing
Choosing the right flexible resin depends on whether you need speed, durability, or softness for your specific project. Our top picks cover a wide range of needs from industrial parts to creative props.
Prioritize hardness ratings and impact resistance when selecting a material that will face real-world stress or dynamic movement. Always consider compatibility with your existing printer setup before purchasing.
Remember that prices and availability can fluctuate, so checking current listings is recommended before buying. Use this guide to find the best flexible resin for your 3D printing needs in October 2026.