

3Dresyn UHF Bio, ultra hard and flexible
Product description
3Dresyn UHF BIO is an ultra hard and flexible bio-based photopolymer formulation designed for high-performance applications in SLA, DLP and LCD 3D printing workflows. The material provides a unique balance between rigidity and flexibility, enabling durable parts with controlled deformation under load.
This formulation is engineered to combine relatively high stiffness with increased elongation compared to rigid systems, supporting applications where both strength and flexibility are required.
Application framework
Designed for use in vat photopolymerization systems (SLA, DLP and LCD) within professional and industrial environments for functional components requiring combined toughness and flexibility.
Typical applications
- Functional parts requiring controlled flexibility
- Durable engineering components under cyclic load
- Protective housings and snap-fit elements
- Jigs and fixtures with slight deformation capability
Measured mechanical properties
- Tensile strength: >30 MPa (ISO 527-1 / ISO 527-2)
- Flexural strength: >40 MPa (ISO 178)
- Young’s modulus: 1000–2000 MPa (ISO 527)
- Elongation at break: <15% (ISO 527)
- Shore hardness: D80 (ISO 868)
Measured physical properties
- Viscosity: low (optimized for stable flow and recoating)
- Shrinkage: very low (typical)
- Resolution capability: very high (process-dependent)
Functional performance characteristics
- Balanced rigidity and flexibility
- High strength with controlled elongation
- Good durability under repeated mechanical stress
- Low shrinkage supporting dimensional accuracy
- Excellent surface quality and resolution
Processing and handling performance
- Printing technologies: SLA, DLP and LCD
- Compatible with most commercial and professional systems when properly calibrated
- Low viscosity enabling reliable printing performance
- Supports extended resin tank lifetime
Chemical and safety characteristics
- Organo-tin free formulation
- BPA-free formulation
- Transition metal-free formulation
Testing & processing disclaimer
Material properties are measured under controlled laboratory conditions and may vary depending on printer type, exposure conditions, layer thickness, build orientation and post-processing workflow.
Disclaimer
This material is supplied as a professional manufacturing material for engineering and prototyping workflows. It is not marketed as a finished medical device. Final part performance and suitability must be validated by the user according to the intended application.
This technical datasheet should be used together with the relevant processing, calibration, safety and workflow documentation available in the 3Dresyns® Resources section.
Document reference: TDS-UHF-BIO-EN | Version: 1.0 | Last updated: March 2026
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