EPU 46
EPU 46
Polyurethane Resin for 3D printing - Carbon DLS
EPU 46 Carbon 3D: high-performance Polyurethane Elastomer for advanced 3D applications
EPU 46, developed by Carbon, is a next-generation polyurethane elastomer engineered for high performance, design freedom, and sustainability.
This advanced resin offers an outstanding balance of elasticity, strength, and durability, making it ideal for 3D-printed products that require long-lasting flexibility and energy return.
High-Performance engineering for maximum Energy Return
Within Carbon’s family of functional resins, this elastomer stands out as the material with the highest energy return and twice the stiffness of the previous EPU 41 formulation. Thanks to its innovative polymer chemistry and optimized mechanical properties, this material enables designers and manufacturers to achieve exceptional rebound, resilience, and dynamic response under load.
In addition, EPU 46 is formulated with 40% bio-based content and supports solvent-free cleaning, aligning with sustainable production workflows aimed at waste reduction and resource efficiency.
Customizable in color, stiffness, and geometry
One of the most powerful advantages of EPU 46 Carbon 3D is its remarkable customization flexibility.
The resin is available in black or a neutral base that can be easily colored using Carbon’s Color Mixing Tool. Designers can achieve opaque or semi-transparent finishes without compromising mechanical performance or print quality.
By adjusting the Part B mixture, users can fine-tune the Shore hardness between 56A and 78A, precisely controlling elasticity and stiffness to suit specific applications.
This means you can create parts with tailored mechanical behavior—soft, flexible zones or rigid, supportive structures—without sacrificing printability or dimensional stability.
Beyond stiffness and color, 3D printing with EPU 46 Carbon DLS enables fully customized geometries, allowing engineers to produce bespoke components that meet demanding performance requirements. From functional prototypes to end-use parts, this material supports intricate lattice structures and fine details with exceptional surface quality.
Moreover, its biocompatibility makes EPU 46 suitable for medical and wearable applications, expanding its use to devices in direct skin contact.
Key features:
- Multiple color options
- Adjustable stiffness and elasticity
- Biocompatible and solvent-free processing
- High energy return with durable flexibility
Main Applications of Carbon EPU 46
Custom 3D-Printed Midsoles with Advanced Performance
Using EPU 46 for 3D-printed midsoles opens up new opportunities in footwear design and performance engineering.
Variable-density lattice structures enable differentiated compression zones, enhancing lateral stability and providing a controlled, long-lasting energy return.
The material’s resistance to repetitive compression cycles ensures consistent performance over time, ideal for high-impact or daily-use products.
In addition, the broad color customization options allow brands to design visually distinctive and performance-oriented midsoles.
Ergonomic Saddles with Tunable Cushioning
In the cycling and sports industries, EPU 46 Carbon 3D is a premium solution for creating ergonomic saddles that combine comfort, durability, and breathability.
Custom lattice geometries optimize pressure distribution, reducing discomfort during prolonged use.
The open structure also promotes airflow and ventilation, improving thermal comfort, while color customization enhances brand identity and product differentiation.
Manufacturers and athletes alike benefit from a material that merges advanced functionality with distinctive design aesthetics.
Soft-Touch, Breathable Grips and Handles
The ability to control the Part B formulation makes this polyurethane elastomer ideal for grips, handles, and tactile components that require a precise feel.
A lower durometer provides a soft, secure, and comfortable grip, perfect for extended use.
Its excellent printability supports complex ergonomic shapes and targeted cushioning zones, while the open lattice design enhances ventilation and moisture control.
The result: highly functional, durable, and user-specific grips that elevate both performance and comfort.
Why Choose Carbon EPU 46 for 3D Printing?
Superior energy return and elastic resilience
Adjustable mechanical properties for specific use cases
Sustainable: 40% bio-based formulation, solvent-free post-processing
Customizable: color, stiffness, geometry
Proven applications across footwear, cycling, and ergonomics
Compatible with Carbon DLS™ technology for production-ready results.
Looking to integrate EPU 46 Carbon 3D into your next project?
Get in touch with our 3D materials experts to explore how this high-performance polyurethane elastomer can help you achieve your design, comfort, and sustainability goals.
