3Dresyn UHV-HFA90 Bio, Biocompatible hard and flexible resin with Shore A90 for Hot Lithograghy HL and Viscous Lithography Manufacturing VLM

Product description

3Dresyn® UHV-HFA90 Bio is a non-yellowing hard and flexible monomer-free photopolymer developed for Hot Lithography (HL) and Viscous Lithography Manufacturing (VLM), also compatible with room temperature processing, requiring rubber-like behavior with high hardness, flexibility without breaking and biocompatible-grade safe handling.

Application framework

Designed for use in Hot Lithography (HL) and Viscous Lithography Manufacturing (VLM) systems, as well as selected room temperature processes, within controlled professional environments. Suitable for the fabrication of durable flexible parts with high hardness, impact resistance and dimensional stability, particularly in thicker geometries.

Typical applications

• Hard-flexible components with rubber-like behavior
• Impact-resistant parts requiring flexibility without fracture
• Thick-section components with enhanced shattering resistance
• Durable flexible technical parts
• Applications requiring Shore A90 compliant materials

Measured mechanical properties

• Notched Izod impact strength: >90 J/m
• Flexural strength: <20 MPa (ISO 178)
• Tensile strength: <20 MPa (ISO 527)
• Young’s modulus: <100 MPa (ISO 527)
• Shore hardness: A90 (ISO 868)
• Elongation: <100% (ISO 527)
• Density: 1.0–1.2 g/cc at 25 °C
• Refractive index: 1.47–1.49
• Typical viscosity: <15,000 cP at 20 °C

Functional performance characteristics

• Hard and flexible behavior without breaking
• Rubber-like response at Shore A90
• Monomer-free, biocompatible-grade formulation
• Ultra-safe formulation without toxic pictograms
• Ultra non-yellowing appearance
• High impact and shattering resistance
• Improved resistance in thicker sections
• Durable behavior under controlled conditions
• Very high resolution
• Very low shrinkage
• Ultra-low organo-tin content
• Bio-based and synthetic resin source

Processing and handling performance

• Medium viscosity resin with medium flow at room temperature
• Compatible with Hot Lithography, Viscous Lithography Manufacturing and selected room temperature workflows
• Broader property adjustment can be achieved with 3Dresyn SA1 HV Bio and 3Dresyn HA1 HV MF Bio
• More detailed property adjustment can be achieved with 3Dresyn SA2 LV Bio and 3Dresyn HA2 LV Bio

Processing note

Note: hard-flexible photopolymers may exhibit geometry-dependent behavior, particularly in thick sections where stress distribution differs from thin parts. Final mechanical performance, flexibility and durability must be validated by the user under real application and processing conditions.

Testing & processing disclaimer

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

Why choose 3Dresyn® UHV-HFA90 Bio

• Hard and flexible performance without brittle failure
• Rubber-like behavior with Shore A90 hardness
• High impact and shattering resistance, especially in thick sections
• Non-yellowing appearance and very low shrinkage
• Compatible with HL, VLM and room temperature workflows
• Monomer-free formulation with biocompatible-grade safe handling
• Very high resolution and durability
• Rigidity tunable with dedicated adjusters
• Ultra-low organo-tin content

Regulatory & legal notice

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

Document reference: TDS-UHV-HFA90-BIO-EN | Version: 1.0 | Last updated: March 2026