Flexible and Semi-Flexible 3D Printing Resins

🌀 Discover our collection of Flexible & Semi-Flexible 3D Printing Resins, engineered to deliver outstanding durability for functional parts, ergonomic prototypes, and tight-fit components. Their low viscosity and fast cure time allow for fine detail reproduction with controlled elasticity, while their optimized formulation ensures elastic recovery, wear resistance, and superior elongation.

Compatible with SLA/DLP printers, these resins offer exceptional durability and versatility across a wide range of applications — including RC prototypes, adjustable jewelry, and everyday-use parts, among many others. 🔄

🔥1Kg Anycubic Tough Ultra Resin, resistant, semi-flexible resin🔥
Sale

🔥1Kg Anycubic Tough Ultra Resin, resistant, semi-flexible resin🔥
🔥1Kg Anycubic Tough Ultra Resin, resistant, semi-flexible resin🔥

Sale price €25,49 Regular price €29,99
🔥1Kg Anycubic Tough 2.0 Resin, semi-flexible resistant resin🔥
Sale

🔥1Kg Anycubic Tough 2.0 Resin, semi-flexible resistant resin🔥
🔥1Kg Anycubic Tough 2.0 Resin, semi-flexible resistant resin🔥

Sale price €19,54 Regular price €22,99

Advantages of flexible resin for 3D printers

Flexible resin for 3D printers stands out for its ability to absorb impacts, bend without breaking, and recover its original shape after deformation. Among its main benefits:

High elasticity and tear resistance: Perfect for parts subjected to bending, torsion, or pressure.
Versatility: From functional prototypes to final components, gaskets, protectors, and footwear parts.
Smooth and precise finish: Smooth surfaces, defined details, and pleasant tactile feel.
Compatibility with different technologies: Available for SLA, LCD, and DLP printers.

Recommended applications for flexible 3D resin

Flexible 3D resin is the best option for:

Prototypes of soft parts, gaskets and shock absorbers.
Custom cases, housings and protectors.
Footwear, orthopaedic or wearable components.
Anatomical models and technical parts requiring flexibility and strength.
Vibration or impact absorption elements in engineering and automotive applications.

Key tips for printing with elastic resin 3D printing

Adjust the printing parameters: Use layers between 0.05 and 0.1 mm and follow the exposure times recommended by the manufacturer to avoid sticky or undercured parts.
Optimize the supports: Flexible parts can warp during printing or post-processing. Use well-distributed supports and remove them carefully after curing.
Gentle post-processing: Wash the parts with isopropyl alcohol and perform UV curing in short intervals to prevent them from becoming overly hardened.
Proper storage: Keep the resin in a cool place and shake well before use to ensure a homogeneous mixture.

Comparison between flexible 3D resin and other technical resins

Flexible resin for 3D printers differs from standard resins or tough resins in its ability to absorb impacts and recover its original shape after deformation. While rigid resins are ideal for structural parts and high dimensional precision, flexible resin excels in applications where elasticity and tear resistance are priorities.

Compared to high-temperature resistant resins, flexible resin cannot withstand extreme heat, but offers unique adaptability for gaskets, protective parts, footwear components, and functional prototypes that require bending and twisting. Choosing the right type of resin for the application is key to ensuring the success and durability of your 3D prints.

Guardabarros de bicicleta impreso en resina flexible Anycubic Tough Ultra doblado con las manos - Mr Resin

🔧 Different flexibility levels for every project

In Mr Resin you will find both soft and elastic resins as well as semi-rigid ones, which offer a balance between impact resistance and some deformation. This allows you to choose the exact degree of hardness or flexibility according to your application.

⚙️ Compatible with 405 nm UV printers

All our flexible resins are compatible with LCD/MSLA and DLP printers that use ultraviolet light at 405 nm, such as Anycubic Photon, Elegoo Mars, Halot, Phrozen Sonic, among others. Check each product sheet for its specific parameters.

Frequently Asked Questions about Flexible Resins

To achieve truly elastic and durable parts, it is essential to adjust the printing parameters and post-processing. Use thin layers and optimal exposure times to prevent the part from becoming too rigid or sticky. Curing must be progressive: perform short cycles under UV light and test the flexibility between each one, since excessive curing can reduce elasticity. Additionally, select a flexible 3D resin with a Shore index appropriate for your application: softer ones (Shore A 50-60) are ideal for gaskets and shock absorbers, while stiffer ones (Shore A 70-90) offer greater structural resistance. Store the parts in a place protected from light and heat to preserve their properties over the long term.

The main difference lies in the level of detail and surface quality that can be achieved. Flexible resin for 3D printers allows printing parts with complex geometries, thin walls and smooth finishes, impossible to achieve with flexible FDM filament. In addition, elastic 3D resin offers greater homogeneity in elasticity and better tear resistance, making it ideal for technical or medical applications where precision is fundamental. If you need soft parts with high definition and tight tolerances, flexible 3D resin is the best option.

Yes, pieces printed with flexible 3D resin can be dyed or painted, but it is important to choose products compatible with flexible materials. For dyeing, the ideal approach is to add specific colorant for resin before printing, achieving a homogeneous color without losing elasticity. If you prefer to paint after printing, use flexible paints or dyes for silicone, applying thin layers to prevent the paint from cracking when the piece is bent. Always perform tests on a barely visible area and make sure the surface is clean and dry before applying any finish.

Flexible SLA resin excels in applications where a combination of precision, elasticity and wear resistance is needed. It is especially useful in the manufacture of gaskets, shock absorbers, protective parts, custom cases and components for medical devices or wearables. It is also the best option for anatomical models, simulators and prototypes that must withstand repeated bending without breaking. Compared to other technical resins, flexible resin for 3D printers provides an extra level of adaptability and comfort in the final use.

To ensure the stability of parts printed with flexible resin, proper design that distributes loads and avoids overly thin areas is essential. After printing, perform uniform curing and avoid overexposing the part to UV light, as this can make it brittle. During storage, keep the parts in a neutral position, without folding them or subjecting them to constant pressure, and protect them from direct sunlight and excessive heat. If the part is going to be in contact with oils, solvents or chemicals, verify the compatibility of the resin to avoid premature degradation.