3Dresyn UHV-UTFD70 Bio, Biocompatible Ultra Tough & Foldable resin with Shore D70 for Hot Lithograghy HL and Viscous Lithography Manufacturing VLM

Product description

3Dresyn® UHV-UTFD70 Bio is a non-yellowing ultra tough and foldable monomer-free photopolymer developed for Hot Lithography (HL) and Viscous Lithography Manufacturing (VLM) applications requiring high flexibility, foldability without breaking, impact resistance and biocompatible-grade safe handling.

Application framework

Designed for use in Hot Lithography (HL) and Viscous Lithography Manufacturing (VLM) systems within controlled professional environments. Suitable for the fabrication of durable foldable parts, flexible components with high resilience and technical applications requiring toughness, controlled softness and very low shrinkage.

Typical applications

• Foldable technical parts requiring repeated deformation without breaking
• Soft-touch flexible components with high impact resistance
• Durable parts requiring high shattering resistance
• Flexible structural elements with controlled low hardness
• Applications requiring tunable rigidity while maintaining foldability

Measured mechanical properties

• Notched Izod impact strength: >90 J/m
• Flexural strength: <30 MPa (ISO 178)
• Tensile strength: <30 MPa (ISO 527)
• Young’s modulus: <400 MPa (ISO 527)
• Shore hardness: D70 (ISO 868)
• Elongation: <200% (ISO 527)
• Density: 1.0–1.2 g/cc at 25 °C
• Refractive index: 1.47–1.49
• Typical viscosity: <12,000 cP at 70 °C; <6,000 cP at 80 °C; <3,000 cP at 90 °C; ~2,000 cP at 100 °C

Functional performance characteristics

• Ultra tough and foldable behavior without breaking
• Monomer-free, biocompatible-grade formulation
• Ultra-safe formulation without toxic pictograms
• Non-yellowing appearance
• High impact and shattering resistance
• Durable behavior under controlled processing conditions
• Very low shrinkage
• Organo-tin free formulation
• Synthetic resin source

Processing and handling performance

• High viscosity, non-flowing resin at room temperature intended for heated HL and VLM workflows
• Compatible with Hot Lithography and Viscous Lithography Manufacturing systems
• Hardness and rigidity can be increased with 3Dresyn HA1 HV MF Bio at user-selected dosages typically in the range of 1–15% by weight, subject to validation
• Broader property adjustment can be achieved with 3Dresyn SA1 HV Bio and 3Dresyn HA1 HV MF Bio
• More detailed property adjustment without sacrificing foldability can be achieved with 3Dresyn SA2 LV Bio and 3Dresyn HA2 LV Bio

Processing note

Note: highly flexible and foldable photopolymers may exhibit geometry-dependent mechanical behavior. Final flexibility, softness, foldability and durability depend on part thickness, curing conditions and thermal history and must be validated by the user for the intended application.

Testing & processing disclaimer

Material performance depends on printer type, thermal control, exposure conditions, geometry and full workflow implementation. Mechanical performance, foldability, softness and final suitability must be validated by the user for each specific application.

Why choose 3Dresyn® UHV-UTFD70 Bio

• Ultra tough and highly foldable performance for flexible applications
• High impact and shattering resistance
• Lower hardness (D70) for softer and more compliant parts
• Monomer-free formulation with biocompatible-grade safe handling
• Non-yellowing appearance and very low shrinkage
• Suitable for HL and VLM manufacturing workflows
• Rigidity tunable with dedicated adjusters
• Organo-tin free formulation

Regulatory & legal notice

This material is supplied as a professional manufacturing material and is not marketed as a finished product. Final performance, durability, flexibility, foldability and process validation remain the responsibility of the user depending on printer, part design, thermal exposure and workflow conditions.

Document reference: TDS-UHV-UTFD70-BIO-EN | Version: 1.0 | Last updated: March 2026