Ultracur3D® EL 4000
Flexible Resin with Superior Strength, Rebound and High Hardness (Shore 90 A)
Ultracur3D® EL 4000 by Forward AM is a high-performance, flexible photopolymer resin engineered for the production of elastomeric parts that combine durability, elasticity, and mechanical strength.
As part of the Ultracur3D® Flexible & Elastomeric Line, it bridges the gap between soft rubber-like materials and engineering polymers, delivering outstanding resilience, rebound behavior, and surface quality.
This high-modulus elastomer offers a unique combination of stiffness and flexibility, enabling designers to produce functional parts that can bend, stretch, and recover their shape under load while maintaining dimensional stability.
It is ideally suited for applications requiring flexibility with structural integrity, such as grips, seals, gaskets, lattice structures, and functional prototypes.
Ultracur3D® EL 4000 can be easily processed on a wide range of DLP and LCD 3D printing systems, offering excellent layer adhesion, low tackiness, and predictable mechanical performance.
Its balance of softness and tensile strength makes it a versatile choice for industries including automotive, consumer goods, footwear, and medical device prototyping..
Key Benefits
- High resilience and flexibility with excellent rebound properties
- Durable and tear-resistant for long-term functional use
- Superior surface finish and low tackiness for clean handling
- Wide processing window on DLP and LCD open systems
- Balanced stiffness and elasticity, enabling both functional and cushioning applications
- Suitable for industrial, consumer, and prototyping environments
Example Applications
- Flexible and durable functional prototypes
- Lattice and cushioning structures for impact absorption
- Seals, gaskets, and grips requiring elasticity and shape recovery
- Footwear components such as midsoles and soft inserts
- Consumer and automotive elastomeric parts
Material Properties
- Elongation at break: 172 %
- Hardness: 90 A
- Rebound resilience: 30 %
- Tear Strength (Graves): 37 N/mm
