


Formlabs Flexible 50A Resin
RESIN · FORM 3 & 4 SERIES
FLEXIBLE 50A RESIN
Overview
Flexible 50A Resin is a soft, translucent elastomer with a 50A Shore durometer that is ideal for prototyping parts normally produced with softer rubbers and silicones. Parts printed in Flexible 50A Resin will bend, stretch, compress, and hold up to repeated cycles without tearing, and spring back quickly to their original shape. With high elongation and high energy return, parts are highly elastic yet strong enough not to tear during printing. Its translucent appearance provides visibility into the model, making it well-suited for medical models and internal fluid flow visualization.


Why Choose Flexible 50A Resin
Flexible 50A Resin is an elastomeric material designed for applications requiring high elongation and high energy return. It offers fast springback, allowing parts to bend, stretch, and compress while rapidly resuming their original shape. High tear strength and durability ensure parts hold up to repeated cycles without tearing under rugged use. The pliable, soft material looks and feels like molded silicone while its transparency allows visibility into internal geometries. Recommended applications include wearables such as straps, compressible buttons, stretchable enclosures and casings, compliant features for robotics, soft tissue medical models, and special effects props.
Technical Specifications
| Parameter | Flexible 50A Resin |
|---|---|
| Ultimate Tensile Strength | 3.4 MPa |
| Stress at 50% Elongation | 0.9 MPa |
| Stress at 100% Elongation | 1.7 MPa |
| Elongation | 160% |
| Tear Strength | 12.3 kN/m |
| Shore Hardness | 55 A |
| Compatible Printer | Form 4, Form 4B, Form 4L, Form 4BL, Form 3, Form 3L, Form 3B, Form 3BL |













