Siraya Tech Tenacious Flex
4.7Editor score
Faster rebound elasticity
Incredible rubber-like feel
Boosts other resin toughness
In this guide
Flexible resin for 3D printing has revolutionized how makers create durable, impact-resistant parts. Unlike standard resins that shatter under stress, these advanced photopolymer formulations offer rubber-like elasticity and superior flexibility. Whether you need shock-absorbing components or wearable prototypes, selecting the right material is crucial for success.
We evaluated ten leading flexible resin products based on their Shore hardness, elongation at break, and overall print quality. Our analysis considers compatibility with LCD and DLP printers, curing speed, and the balance between softness and structural integrity. Each option was scrutinized for its ability to produce reliable, non-brittle results.
Every pick below highlights unique strengths, from budget-friendly options to premium formulations designed for industrial applications. You will find detailed breakdowns of performance, pros, cons, and ideal use cases for each product. Please note that market conditions vary, so always verify current availability and details before purchasing.
Top 3 Picks for Best Flexible Resin for 3D Printing
ANYCUBIC Ultra Tough Resin
4.7Editor score
Exceptional impact resistance
Seamless articulated movement
Non-irritating skin touch
Siraya Tech Rebound 55A
4.2Editor score
Fast rebound action
55A Shore hardness balance
No special cleaning required
Top 10 Best Flexible Resin for 3D Printing in 2026 Compared
This side-by-side comparison evaluates all ten selected flexible resins across key performance metrics. We examine their specific hardness ratings, compatibility with standard printers, and unique formulation benefits to help you make an informed decision for your specific printing needs.
ProductsSpecificationsEditor scorePrice
Best Budget
Superflex 3D Printer Resin
80A Shore Hardness
100% Elongation
ISO 10993 Certified
Monochrome LCD Optimized
4.4Editor score
Editor's Choice
ANYCUBIC Ultra Tough Resin
Impact Resistant
High Flexibility
Skin Safe Touch
Versatile Additive Use
4.7Editor score
Best Premium
SUNLU Flexible 3D Printer Resin
70A Shore Hardness
135% Elongation
Smooth Surface Finish
Low Shrinkage Rate
3.5Editor score
Siraya Tech Tenacious Flex
Soft Rubber Like
Enhanced Flexibility
High Impact Resistance
Specialized Applications
4.7Editor score
ANYCUBIC Tough Resin 2.0
High Toughness
Low Odor Formula
High Precision
Minimal Shrinkage
4.6Editor score
SUNLU High Toughness Resin
Long Lasting Toughness
Better Accuracy
Low Odor
Widely Compatible
4.7Editor score
ELEGOO Tough 3D Printer Resin
Shore 84.7D Hardness
Strong Impact Resistance
Weather Resistant
Wide Application
4.5Editor score
Siraya Tech Rebound 55A
Fast Rebound Action
55A Shore Hardness
Easy Printing
Prototyping Applications
4.2Editor score
ANYCUBIC Tough Resin Clear
Unmatched Strength
Exceptional Stretch
Low Odor
Exceptional Accuracy
4.6Editor score
3D Printer Resin Flexible Upgraded
90A Shore Hardness
Tear Resistant
High Precision
Real World Use
4.4Editor score
1. ANYCUBIC Ultra Tough Resin – Best Overall Flexible Resin for 3D Printing
ANYCUBIC Ultra Tough Resin
Strong Impact Resistance
High Flexibility
Non-Irritating Skin Touch
Suitable for Additive
ANYCUBIC Ultra Tough Resin stands out with its exceptional impact resistance and high flexibility, earning it a strong rating for versatile applications. It is designed to recover swiftly after deformation, making it ideal for parts that endure stress or impact during use.
Pros
- Exceptional toughness and resilience
- Great for hair-like textures
- Comfortable wearability
- Effective as an additive
- Strong durability in humidity
Cons
- Mixing may affect color
- Requires careful handling
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The resin excels in precision and versatility, particularly for crafting articulated models or hair-like textures. Its gentle skin sensation ensures improved wearability, which is perfect for wearable projects like earphone covers. It also performs well as an additive to boost the toughness of other resins.
While mixing with other colors might alter the final outcome, this is a minor trade-off for its significant durability benefits. The material retains high elasticity even in extreme temperature conditions, ensuring reliable performance across various environments without softening or corroding.
Anyone needing durable, flexible parts for daily use or industrial prototyping should consider this resin. Its balance of strength and flexibility makes it a top choice for those who demand quality and resilience in their 3D prints.
Superior Impact Resilience
Its capacity to recover its original shape following deformation ensures heightened resistance to damage, making it perfect for functional prototypes.
Wearable Comfort
Upon curing, it ensures a non-irritating experience on the skin, offering enhanced flexibility for a superior touch and feel.
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2. Siraya Tech Tenacious Flex – Best Budget Flexible Resin for 3D Printing
Siraya Tech Tenacious Flex
Soft Rubber Like
Enhanced Flexibility
High Impact Resistance
Excellent Resin Additive
Siraya Tech Tenacious Flex is a significantly softer and more rubber-like formulation compared to the classic Tenacious resin. It offers incredible elasticity and faster rebound, making it perfect for resilient prints that need to bend and return to shape quickly.
Pros
- Significantly softer than classic
- Faster rebound and elasticity
- Withstands extreme bending
- High impact resistance
- Boosts other resin properties
Cons
- Not for all original uses
- Smaller 500g size
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Its enhanced flexibility withstands extreme bending and compression, ensuring models remain durable without cracking. High impact resistance protects against accidental drops, while the material serves as an excellent additive to boost flexibility and toughness in other resins.
While it may not suit all applications of the original Tenacious resin, its specialized performance is unmatched for soft grips and shock-absorbing components. The ability to mix small amounts to enhance other prints adds significant value to your workflow.
Budget-conscious makers seeking high-quality flexibility will find this resin exceptional. Its unique balance of softness and strength makes it a versatile choice for prototyping and functional parts.
Incredible Elasticity
Withstands extreme bending and compression, quickly returning to its original shape with superior elasticity.
Additive Enhancement
Mix with other resins to boost impact resistance and flexibility significantly with a small addition.
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3. Siraya Tech Rebound 55A – Best Premium Flexible Resin for 3D Printing
Siraya Tech Rebound 55A
Fast Rebound Action
55A Shore Hardness
Easy Printing
Prototyping Applications
Siraya Tech Rebound 55A offers significantly faster rebound than standard elastic resins, ideal for applications needing quick shape recovery. Its 55A Shore hardness provides a balanced mix of flexibility and structural integrity for shock-absorbing components.
Pros
- Fast rebound action
- Balanced flexibility and strength
- No special cleaning required
- Good resilience in compression
- Versatile prototyping uses
Cons
- Higher price point
- Long-term testing ongoing
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The resin prints easily on standard LCD and DLP printers without special cleaning, using standard isopropyl alcohol methods. Initial testing shows good resilience during compression cycles, maintaining elasticity over repeated use for demanding prototyping scenarios.
Although long-term performance testing is ongoing, its fast rebound and versatility make it a strong candidate for protective gear and industrial parts. The absence of complex processing requirements simplifies its integration into existing workflows.
Users seeking premium elasticity for advanced prototyping will appreciate its performance. It stands out for those prioritizing quick recovery and impact absorption in flexible 3D printed parts.
Fast Rebound Action
Provides significantly faster rebound than standard elastic resins for quick shape recovery and impact absorption.
Versatile Prototyping
Well-suited for personal protective equipment and industrial prototyping where rebound performance is key.
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4. Superflex 3D Printer Resin – Best Balanced Flexible Resin for 3D Printing
Superflex 3D Printer Resin
80A Shore Hardness
Fast Printing Speed
100% Elongation
ISO 10993 Certified
Superflex 3D Printer Resin delivers fast printing speeds with 50um layers in 1.7 seconds on monochrome LCD printers, significantly boosting productivity. It balances softness with strength to simulate rubber or TPU for hard flexible prototypes.
Pros
- Fast 50um layer printing
- Balanced softness and strength
- 100% elongation at break
- ISO 10993 certified
- Enhances productivity
Cons
- Limited to 500g
- Optimized for monochrome LCD
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Its 80A Shore durometer and 100% elongation at break make it well-suited for cushioning, damping, and shock absorption. Properly cleaned prints pass ISO 10993-5 tests, ensuring safety for various applications in diverse environments.
The resin saves time and electricity, enhancing farm productivity by at least 40%. While limited to 500g and optimized for specific printers, its performance characteristics are reliable for professional and personal use.
Makers prioritizing speed and balanced flexibility will find this resin effective. It is a solid choice for those needing shock-absorbing components or flexible prototypes with certified safety standards.
Fast Printing Speeds
Prints 50um layers in 1.7 seconds, saving time and electricity bills.
Certified Safety
Passes ISO 10993-5 tests when properly cleaned and fully post cured for safe use.
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5. ANYCUBIC Tough Resin 2.0 – Best High-Toughness Flexible Resin for 3D Printing
ANYCUBIC Tough Resin 2.0
Enhanced Toughness
Strong Elongation
Low-Odor Formulation
Minimal Shrinkage
ANYCUBIC Tough Resin 2.0 features a comprehensive upgrade in flexural strength, offering exceptional toughness and high precision. It resists breakage and peeling, making it ideal for miniature components and thin models that need durability.
Pros
- Exceptional toughness upgrade
- Resistant to breakage
- Low odor and friendly
- High precision prints
- Industry compatible
Cons
- May need post-curing
- Grey color only
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Its strong elongation provides high flexibility, resisting stress marks caused by cyclic vibrations. The low-odor formulation creates a comfortable printing environment, reducing volatile organic compounds for a greener experience.
The resin boasts excellent precision with minimal shrinkage, ensuring smooth surfaces and clear details. Compatible with most LCD resins printers, it is designed for industrial and maker applications requiring high strength and accuracy.
Users needing reliable, high-precision flexible parts will find this resin excellent. Its upgraded toughness and low odor make it a practical choice for demanding 3D printing projects.
Upgraded Toughness
Demonstrates enhanced toughness, making it less prone to fracture when printing miniature components.
Low-Odor Formulation
Features a low odor and non-irritating composition, creating a calm printing environment.
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6. SUNLU High Toughness Resin – Best Value Flexible Resin for 3D Printing
SUNLU High Toughness Resin
High Toughness
Better Accuracy
Low Shrinkage
Widely Compatible
SUNLU High Toughness 3D Resin offers long-lasting toughness with elongation 5 times higher than standard resin. Its excellent flexibility and bendability make models unbreakable and durable, improving overall printing quality for structural parts.
Pros
- Elongation 5x higher
- Improved printing quality
- Low shrinkage rate
- Low printing odor
- Widely compatible
Cons
- Grey color may limit aesthetics
- Requires alcohol cleaning
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Low viscosity and high flowability result in shorter curing times and easier model formation. With lower shrinkage, distortion is reduced, allowing for best-in-class accuracy and vivid detail in your resin prints.
The resin has a lower printing odor, providing a comfortable environment for users. Its leak-proof design and compatibility with most LCD, DLP, and SLA printers ensure easy handling and reliable results across various machines.
Users seeking cost-effective durability and accuracy will find this resin impressive. Its high toughness and low shrinkage make it a practical choice for demanding, precision-focused 3D printing applications.
Long-Lasting Toughness
Elongation 5 times higher than regular resin, making models unbreakable and durable.
Low Shrinkage
Reduces distortion in 3D printed models, allowing best-in-class accuracy.
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7. SUNLU Flexible 3D Printer Resin – Best All-Rounder Flexible Resin for 3D Printing
SUNLU Flexible 3D Printer Resin
70A Shore Hardness
135% Elongation
Smooth Surface Finish
Good Chemical Stability
SUNLU Flexible 3D Printer Resin offers a perfect balance of softness and strength, simulating rubber for durable flexible prototypes. With 70A Shore durometer and 135% elongation at break, it exhibits formidable strength and flexibility for soft items.
Pros
- Balanced softness and strength
- High impact resistance
- Smooth non-sticky finish
- Low shrinkage rate
- Good chemical stability
Cons
- Rating may indicate variability
- Gray color limitation
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High impact resistance ensures models withstand drops without breaking, while the smooth finish provides a dry, non-sticky surface after cleaning. Low shrinkage during curing provides accurate size and shape of printed parts.
The resin shows good tolerance to weak acids and greases, making it suitable for most manufacturing needs. However, the rating suggests some variability in performance, which may require tuning for specific prints.
Users seeking a balanced, affordable flexible option will find this resin useful. Its low shrinkage and impact resistance make it a solid choice for non-critical flexible prototypes.
Balanced Softness
Offers a perfect balance of softness and strength, simulating rubber for flexible prototypes.
Smooth Finish
After cleaning, you get a dry, non-sticky surface with a pleasant touch.
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8. ELEGOO Tough 3D Printer Resin – Best Durable Flexible Resin for 3D Printing
ELEGOO Tough 3D Printer Resin
Shore 84.7D Hardness
High Strength Impact Resistance
Good Weather Resistance
Low Odor
ELEGOO Tough 3D Printer Resin boasts excellent flexibility and extraordinary resilience, with a cured hardness of 84.7D. It withstands tension and stress, recovering quickly after deformation with strong damage resistance for high-performance models.
Pros
- Exceptional resilience
- High strength physical properties
- Weather and corrosion resistant
- Low odor and non-irritating
- Wide application range
Cons
- Higher Shore hardness
- May need specific tuning
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Its high-strength properties allow drilling without cracks, and it resists brittleness even in humid environments. The low-odor formula provides a comfortable printing environment, enabling high-quality production without pungent distractions.
The resin is versatile for end-use products, functional prototypes, and tools. Its fine texture and weather resistance ensure consistent performance, making it suitable for diverse projects requiring durable flexible parts.
Users needing reliable, high-strength flexible components will appreciate this resin. Its weather resistance and wide application make it a solid choice for demanding industrial or engineering prototypes.
Exceptional Resilience
Easy to bend but not easy to break, with strong damage resistance and quick recovery.
Weather Resistant
Excellent resistance to brittleness and corrosion even in high humidity or humid environments.
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9. ANYCUBIC Tough Resin Clear – Best Precision Flexible Resin for 3D Printing
ANYCUBIC Tough Resin Clear
Unmatched Strength
Exceptional Stretch
Low-Odor
Exceptional Accuracy
ANYCUBIC Tough Resin 2.0 in clear offers unmatched strength and high precision, reducing breakage risk for delicate components. Its exceptional stretch provides high flexibility, resisting damage from cyclic vibrations and drops.
Pros
- Superior flexural strength
- Exceptional stretch and flexibility
- Low odor design
- High precision with minimal shrinkage
- Industry-wide compatibility
Cons
- Clear color only
- May need specific settings
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The low-odor composition creates a serene printing environment, cutting down volatile organic compounds. Exceptional accuracy with minimal shrinkage ensures high-precision prints, making it ideal for detailed industrial applications.
Its industry-wide compatibility supports diverse equipment and materials. The combination of strength and flexibility delivers reliable performance for users who need durable, clear prototypes with exacting standards.
Users prioritizing clarity and precision will find this resin outstanding. Its exceptional stretch and low odor make it a practical choice for professional transparent flexible parts.
Unmatched Strength
Achieved significant enhancement in flexural strength, reducing breakage for delicate components.
Exceptional Stretch
Offers exceptional strength and flexibility, effectively resisting damage caused by cyclic vibrations.
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10. 3D Printer Resin Flexible Upgraded – Best Rubber-Like Flexible Resin for 3D Printing
3D Printer Resin Flexible Upgraded
90A Shore Hardness
Soft Rubber Like
High Precision
Real World Use
This upgraded resin delivers flexible, rubber-like performance with 90A Shore hardness. It combines softness and strength, allowing repeated folding and bending without breaking, making it suitable for shock absorption and cushioning.
Pros
- Flexible like rubber
- Tear resistant formula
- No more brittle failures
- High precision and low odor
- Works on most LCD printers
Cons
- 90A may be stiffer
- Requires ventilation
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Its high elongation and tear resistance make it ideal for gaskets, toy tires, and ergonomic grips. The tough formula ensures reliable performance under repeated stress, offering crisp accuracy with a low-odor formula for comfort.
Designed for makers and engineers, it works on most LCD and DLP printers. The resin handles flexible toys, wearables, and medical models, providing durable parts that resist cracking and wear.
Users needing reliable rubber-like functionality will find this resin robust. Its tear resistance and high precision make it a practical choice for real-world flexible parts requiring strength.
Rubber-Like Flexibility
Flexible like rubber, allowing repeated bending without breaking with strong tear resistance.
Real-World Durability
Delivers high elongation and excellent tear resistance for parts needing to stay flexible.
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Buying Guide – How to Choose the Best Flexible Resin for 3D Printing
Choosing the right flexible resin involves evaluating several technical factors to ensure your prints meet performance needs. Consider the following aspects to select the optimal material for your projects.
Shore Hardness Rating
Shore hardness indicates the resin's softness; lower values like 55A or 70A offer more flexibility, while 80A or 90A provide durability. Select based on whether your project requires soft rubber or tough impact resistance.
Lower hardness offers greater flexibility; higher hardness offers more structural integrity.
Elongation at Break
This measures how much a printed part can stretch before breaking. Higher percentages, like 135%, ensure parts withstand bending without cracking. Check this spec for applications needing repeated flexing.
Higher elongation ensures better flexibility and resistance to breaking.
Impact Resistance
Impact-resistant resins protect against drops and shocks, ideal for functional parts. Look for claims of toughness or resilience in product descriptions to ensure durability during use or handling.
Strong impact resistance prevents cracks and fractures in functional prototypes.
Print Quality and Precision
Flexible resins must maintain high detail and precision. Ensure the product supports high resolution and minimal shrinkage to avoid distortion in complex or detailed models.
Prioritize resins promising low shrinkage and crisp details.
Printer Compatibility
Confirm the resin works with your printer type. Most flexible resins support 405nm wavelengths for LCD, DLP, or SLA printers. Check specifications to avoid compatibility issues.
Ensure the resin matches your printer's wavelength.
Curing Speed and Odor
Fast-curing resins save time, while low-odor formulations improve workspace comfort. Look for features that reduce curing times and volatile compounds to enhance efficiency.
Prioritize low-odor and fast-curing formulas.
Safety and Standards
For wearables or medical use, check certifications like ISO 10993. This ensures the resin is safe for skin contact and non-toxic after curing.
Choose certified resins for skin-safe applications.
How to Use and Care for Your Flexible Resin for 3D Printing
Shake the resin bottle thoroughly before use to ensure consistent mixing of additives. Pour the desired amount into your printer's tank, avoiding spills. Clean any excess resin from tools or surfaces immediately with isopropyl alcohol.
Follow the manufacturer's recommended print settings, adjusting exposure times as needed for your printer model. Flexible resins may require longer exposure than standard ones. Start with base settings and optimize incrementally for best results.
After printing, wash parts in isopropyl alcohol to remove uncured resin. Ensure they dry completely before post-curing under UV light. Store unused resin in a cool, dark place away from UV exposure to maintain shelf life.
Frequently Asked Questions
What is flexible resin for 3D printing?
Flexible resin is a photopolymer material designed to create 3D prints with rubber-like elasticity and flexibility. Unlike standard brittle resins, it can bend and withstand impact, making it ideal for functional prototypes and durable parts.
Is flexible resin safe to print with?
Most flexible resins are safe when used with proper ventilation and protective gear. Always follow safety guidelines, wear gloves, and work in well-ventilated areas to minimize exposure to uncured chemicals.
Do I need a special printer for flexible resin?
Most flexible resins work with standard LCD, DLP, or SLA printers using 405nm UV light. Ensure your printer supports the resin's curing wavelength and adjust settings as needed for optimal performance.
How does Shore hardness affect flexible resin?
Shore hardness indicates softness; lower values like 55A are softer and more flexible, while higher values like 90A are tougher. Choose based on whether you need extreme flexibility or durable flexibility.
How do I clean prints made with flexible resin?
Clean flexible resin prints using isopropyl alcohol to remove uncured material. Ensure prints are dry before post-curing. Handle parts gently to avoid damaging them during the cleaning process.
What is elongation at break?
Elongation at break measures how much a printed part can stretch before breaking. Higher percentages indicate better flexibility, ensuring parts can bend without cracking under stress.
Final Thoughts on Choosing the Best Flexible Resin for 3D Printing
Flexible resin for 3D printing offers unparalleled versatility for creating durable, impact-resistant parts. Our top picks include ANYCUBIC Ultra Tough Resin, Siraya Tech Tenacious Flex, and Siraya Tech Rebound 55A for varied needs.
Prioritize specifications like Shore hardness, elongation, and printer compatibility to match your project requirements. High-quality flexible resins ensure reliable performance across functional prototypes and everyday items.
Always check current availability and product details before purchasing to ensure you get the latest formulations. With the right choice, your 3D prints can achieve both flexibility and structural integrity.